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One UI

Samsung One UI



Samsung One UI is an Android-based custom user interface developed by Samsung for its different devices including smartphones, foldable phones, Galaxy Smart Watches, and tablets. On the other hand, the company installs One UI’s lighter version, One UI Core in its budget and mid-range smartphones.

The South Korean tech giant has developed One UI for devices running Android 9 Pie and above, and it is a successor of the Samsung Experience UX.

Samsung has been using this custom Android user interface since 2019 and soon it’ll unveil the 3rd generation of the One UI. There’s a broad history of One UI, so here you can check the complete bloodline of the entire One UI system and the changes that have been made since the first One UI version rollout.

One UI History

One UI 1.0 (Android 9 Pie)

One UI 1.0 based on Android 9 Pie was released to the Galaxy S8 and S8+ in January 2019. It brings exciting new features and a whole new look and feel based on feedback from users in Samsung and Google.


One UI 1.0 Features:

One UI
– Content, settings, and other information have been reorganized to keep you focused on the task at hand.
– Interactive elements have been moved to the bottom of the screen so they’re always within reach.
– New designs and features such as Night mode help keep your eyes comfortable.

– You can reply to messages directly in the notification panel.
– Image thumbnails are included in message notifications.
– In an app’s notification settings, tap the switch once to turn on or off all the notifications in a category.

Samsung Keyboard
– New Unicode 11.0 emojis are available.
– New adaptive theme changes your keyboard look based on the colors of the surrounding app.
– Floating keyboard is available in all apps and has new size and transparency settings.
– You can set a custom touch and hold delay.

Device care (formerly Device maintenance)
– Performance modes are streamlined and integrated into power-saving modes.
– The Edge panel for device maintenance is discontinued.


Always On Display
– New clock styles have been added, including the option to show a calendar with your schedule.
– Charging information has been added to let you know how much time is remaining until fully charged.
– You can show Always On Display whenever the screen is off, or you can set it to show for 30 seconds when you tap the screen.

– Menus have been reorganized to make settings easier to find.

Samsung DeX
– Continue using your phone while DeX is being displayed on a monitor or TV.
– Use Samsung DeX with supported HDMI adapters. No need for a DeX Station.

– Bixby is all new, with a range of improvements and new features.
– Swipe left from the main Bixby screen to explore the latest features and supported apps.
– You can control the Bixby key in settings to decide what happens when you press or double press.


– You can now sort your call history by incoming and outgoing calls.
– Your call history can include up to 2000 entries (increased from 500 entries).

– The new drawer menu makes it easier to manage contacts from various accounts.

– Photo Editor Pro’s editing tools have been added to Gallery, so you can make all your edits and touchups without leaving the app.

My Files
– The new storage analysis tool has been added to help you monitor your storage usage and save space.
– You can now show or hide items on the My Files Home screen.


Samsung Health
– Your daily step count will be shown in the notification panel. To hide it, press and hold the notification, then turn off Current steps.

Other improvements and changes
– Turn on the screen automatically whenever you pick up your phone using the Lift to wake feature.
– Access Kids Home on the quick panel.
– Call stickers has been discontinued.
– HEIF images are now supported.
– Dolby ATMOS/AC4 is supported.
– Dolby ATMOS/AC4 is supported

One UI 1.1 (Android 9 Pie)

One UI 1.1 was never rolled out for Samsung Galaxy devices as an OTA update. The One UI 1.1 released alongside the Galaxy S10 series, Galaxy Fold and Galaxy A50. It only brings the Bixby Routines feature.

One UI 1.1 mainly brought Bixby Routine for eligible smartphones, customizations for Bixby Voice and key customizations as well as the new Digital Wellbeing feature for better maintenance of your Samsung device.


One UI 1.5 (Android 9 Pie)

With the Galaxy Note 10 series smartphones, Samsung released the new version of the One UI, One UI 1.5 after Samsung’s partnership with Microsoft to bring better mobile integration to Windows 10.

One UI 1.5 Features:

· Various camera features have been added and enhanced.
– Live focus, Live focus video, AR Doodle, Night, Super steady
· The Link to Windows feature has been added.
– You can easily access photos, messages, and notifications from your phone on your PC, and a screen mirroring feature is also provided.
– This feature is available through the Link to Windows in the quick panel or Settings.
* After updating, the Your Phone Companion app icon may disappear.
· Video Editor has been improved.
· DeX for PC has been added.
· Dynamic Lock screen has been added.
– The wallpaper on your lock screen changes when you turn your screen off and on.
– New wallpaper images are updated every 2 weeks.

One UI 2.0 (Android 10)

One UI 2.0 is the second generation of Samsung One UI that provides a more refined UI in some default apps, a skinned Digital Wellbeing experience, a minor UI change to the clock position in quick settings, a native screen recorder, the new Android 10 gesture system, Dynamic Lock Screen, a Trash folder in Files, native Android Auto, and harder Location permission access.

One UI 2.0 Features:

Dark mode
– Enhanced image, text, and color adjustments for day and night environments.
– Darkened wallpapers, widgets, and alarms while Dark mode is on.


Icons and colors
– Clearer app icons and system colors.
– Improved layouts for titles and buttons to eliminate wasted screen space.

Smoother animations
– Enhanced animations with a playful touch.

Full screen gestures
– Added new navigation gestures.

Refined interactions
– Navigate more comfortably on large screens with minimal finger movement.
– Easily focus on what matters with clearly highlighted buttons.


One-handed mode
– New ways to access One-handed mode: double tap the Home button or swipe down in the center of the bottom of the screen.
– Settings moved to Settings > Advanced features > One-handed mode.

– High contrast keyboards and layouts for large text have been improved.
– Listen to live speech and display it as text.

Better text over wallpapers
– See text more clearly against wallpaper, as One UI automatically adjusts font colors based on light and dark areas and color contrast in the image below.

Media and devices
– Replaced the SmartThings panel with the Media and Devices.
– Media: Control music and videos playing on your phone as well as other devices.
– Devices: Check and control your SmartThings devices directly from the quick panel.


Device care
– The battery usage graph now provides more detailed information.
– Added battery limit setting and other enhancements for Wireless PowerShare.

Digital wellbeing
– Set goals to keep your phone usage in check.
– Use Focus mode to help avoid distractions from your phone.
– Keep an eye on your kids with new parental controls.

– Added the ability to edit the modes that appear at the bottom of the screen.
– Provided a More tab so you can quickly access hidden modes from the preview screen.
– Improved the layout so you can focus on taking pictures without the settings getting in the way.

– Customize the quick menu to get instant access to the features you use the most.
– Get more information from the app bar.
– Install add-ons from the Galaxy Store to get even more features.


Samsung Contacts
– Added Trash feature for Contacts. Contacts that you delete will stay in the trash for 15 days before being deleted forever.

– Stickers can be added to a date without creating an event.
– Ringtones can be used for event alerts.

– More options are available for repeating reminders.
– Set location-based reminders for a specific period of time.
– Share reminders with your family group and other sharing groups.
– Set reminders for a specific date without an alert.

My Files
– Created a Trash feature so you can restore files if you delete something by mistake.
– Added more filters you can use while searching to help you find things quickly.
– You can now copy or move multiple files and folders to different destinations at the same time.


– Added speed and time units to the unit converter.

Connected car
– Android Auto is now preloaded.

– Added tips to help you get the most from your Galaxy.

One UI 2.1 (Android 10)

With the Galaxy S20 series smartphones and the Galaxy Z Flip, Samsung released the new version of the One UI, One UI 2.1 which brings support for Galaxy devices that support 120Hz fresh rate, Quick Share, Music Share, additional camera modes, and native support for Live Captions.


One UI 2.1 Features:

AR Emoji
– AR Emoji has been updated with improvements like a manual editing feature and enhanced facial expression recognition.
※ As AR Emoji has been updated to a new version, all previously saved AR emojis will be deleted when you next open the AR Emoji app.

New Camera features
– Various menus, modes, and filters have been added, such as AR Zone, Single take, Pro video, My filters, Selfie tone, timelapse for night time, and a mode for recording videos with the front camera in FHD/UHD at 60 fps.

– Similar images are now grouped together for a more organised viewing experience.
– A feature has been added that allows you to merge multiple different groups of albums into one group, or merge different groups and albums into one group.
– An improved search feature has been added to find pictures based on information such As the time or place pictures were taken.
– The Quick crop function has been added to enlarge and crop parts of high resolution images.

Samsung keyboard
– A multilingual translation feature has been added.
– A feature has been added for searching for Various items, such As emojis and stickers, at one time.
– A text undo/redo feature has been added.
(Swipe two fingers left or right on the keyboard.)
– An icon to open Samsung Pass has been added.


Quick Share
– Files can now be quickly and easily shared with nearby Samsung devices using Quick Share.

Music Share
– Music Share now lets you share music with your friends using a Bluetooth audio device.

One UI 2.5 (Android 10)

Samsung has officially released its latest version of the One UI, One UI 2.5 alongside the launching of the Galaxy Note 20 series smartphones. The One UI 2.5 doesn’t bring radical changes to the UI, but there are plenty of new feature additions to the camera, DeX, gesture navigation, and other services.

One UI 2.5 Features:

Samsung DeX
– Wireless DeX connection support.
. Wireless connection with TVs through Wi-Fi Direct (compatible with Miracast).
* Quick panel – DeX
. Usage of Samsung Smart TVs released after 2019 is recommended.
– Screen Zoom and Font Size options are supported to allow customization in various display sizes.


– If quality information on nearby Wi-Fi routers can be measured, this information will appear as Very Fast, Fast, Normal, or Slow.
* This feature can be turned on or off in “Network Quality Information Display” settings.
– When attempting to access a Wi-Fi router with a password, a newly added feature now allows the user to request the password of the Wi-Fi router from someone nearby who is saved in their contact list and has already connected to that router.
* The “Request Password” button will appear on the Wi-Fi password input screen when you can request a password.

Always On Display
– Bitmoji Stickers are supported on Always On Display. (Clock style)

Samsung keyboard
– A new feature has been added to the keyboard search feature that allows the user to search YouTube.
– Split Keyboard is supported on Landscape mode.
– The search function of the “Manage Input Languages” screen in the Keyboard Settings page has been newly updated to make it easy to find keyboard input languages that the user wishes to add or delete.

– The Pro Video feature has been enhanced.


– A feature has been added that allows the user to call a person who is saved as a pre-configured SOS message contact.
– A feature has been added that allows the user to send SOS location-sharing messages every 30 minutes for 24 hours.

One UI 3.0 (Android 11) [Beta]

Samsung One UI 3.0 is the latest version of the One UI. The Galaxy S20, Note 20, and Note 10 series smartphone users are currently testing the One UI 3.0 as a public beta program in several eligible countries. The latest One UI 3.0 comes with a lot of exciting new features, including a double-tap gesture anywhere on the home screen to turn off the display.

Here’s what One UI 3.0 brings.

One UI 3 provides a sense of immersion and satisfaction with a refined and refined design and improved performance. Core functions that you use repeatedly in your daily life are enhanced to make it easier to focus on what matters. Privacy has been enhanced to be more secure, and digital well-being features have been improved to make the device more balanced.

Your valuable opinions delivered through the beta program will be of great help in creating a more complete One UI.
* Please backup important data before proceeding with the upgrade.


We’ve refined the design so that you can focus more on refined and refined design content and feel visual comfort. Motion and haptic reactions that are smoother and more natural than before add joy to use, and the interface that responds to various screen sizes provides the best experience for different types of devices such as smartphones, foldable phones, and tablets.

It provides seamless usability through platform optimization such as faster app execution speed and behavior than improved performance, and improved memory allocation performance. System performance and power usage have also been improved overall by minimizing unnecessary app actions that occur in the background.

Personalization to your liking

One of the biggest advantages of One UI, the customization feature has also been improved. • Add image category for dynamic lock screen and select up to 5 categories at a time • Add widget to check mobile phone usage time on lock screen • Support interactive preview function when setting wallpaper • Always On Display and Improved lock screen editing interface · Set the incoming and outgoing calls screens to various contents such as videos • Lock tabs and change the order of Samsung Internet • Add various conditions and execution methods so that you can use Bixby routines as you wish • Routines Star icon setting, lock screen widget added • Digital well-being can be used by separating personal and work profiles

Key features that are used over and over again

Home screen and lock screen

We have improved the design and functionality of the most popular home screens and lock screens. • You can add related widgets by long pressing the app icon on the home screen • Offer the screen off function by double-tapping an empty space on the home screen and lock screen (can be set in [Settings> Useful functions> Motion and gestures]) • Clock on the lock screen You can change the interaction by tapping the area to check the widget and check various widgets such as schedule, weather, and music on one page.


Convenient features have been added to make conversations with family, friends and loved ones more enjoyable and meaningful. In the notification window, you can collect and view conversations with important people separately, and you can easily edit the contact information of multiple accounts at once in the contact editing screen, and duplicate contacts can be easily organized. The period for keeping deleted contacts in the trash has been changed from 15 days to 30 days, and a trash feature has been added to keep recently deleted messages for 30 days.


Photos and Videos

The camera’s AE and AF functions and interface design have been improved so that you can leave great photos and videos without missing precious moments. The overall experience of viewing, editing, and sharing captured photos and videos has also been upgraded more naturally. The Gallery app has improved the multi-viewing experience to enhance the immersion of the content, and a similar photo feature allows you to easily move around and enjoy related photos. It also comes with a restore feature that lets you revert to the original at any time after photo editing.

The first screen of the Settings app and Quick Settings settings has been improved to be concise. It puts the Samsung account on top and provides a separate home screen setting. Search is also enhanced. Search is also possible when entering synonyms and typos. When entering the settings search window, it provides users with the necessary settings so that they can easily find them by tag. In the quick setting window, you can place important items first and add/edit the necessary settings easily.

Samsung keyboard input languages ​​increased to 370. If you’ve copied an image or received a verification text, you’ll get the ability to easily paste it. When entering text-based emoticons, related emojis and stickers are recommended. Improved keyboard layout to provide a large space bar when entering URLs and email addresses. Keyboard settings have been reorganized to make it easier to access the settings you use most.



Balance life and work by minimizing repetitive and complex tasks and handling them efficiently. • Analyzes the user’s repeated daily life and device usage patterns and recommend a new routine. • When the routine ends in the Bixby routine, it provides an option to return to the previous state, and various actions such as “Ask Bixby” and “Accessibility” Added a function to translate Samsung Internet websites and a function to hide the status bar to help you immerse yourself in the entire screen. • Cloud drive files can be browsed and selected from the file selection screen of My Files • Added option to delete cache files to easily free up storage space in My Files app • Collect duplicate events with the same start time in the month view and list view of the calendar Display

Easy Media and Peripheral Control

The way you control digital devices around you from your phone has been improved. Easily control media playback devices or apps through the media card in the notification window. You can quickly check the recently used media apps and easily change the playback device. You can also check Android Auto Settings by selecting it from the Useful Functions menu in Settings. Use your phone functions more safely and easily while driving with Android Auto.


Easily track device usage

The enhanced digital well-being feature makes it easy to check device usage and help you shape your digital usage habits correctly. Check the device usage time while driving, or check the change in usage time by function in the past week and this week through the upgraded weekly report analysis.

Accessibility for everyone

We recommend useful functions to me so that you can use the various accessibility functions provided by One UI well without missing out, and the improved “shortcut” helps you use more accessibility functions more easily and quickly, and keyboard input Speak to you as you type without turning on TalkBack.


Strengthen privacy protection

Manage your valuable information more safely and efficiently. The “Allow only this time” option has been added to the app’s microphone, camera, and location permission request screen, and permissions that have not been used for a while are automatically revoked, further enhancing privacy. The Always Allow button is no longer provided in the location permission consent pop-up, and this option is available only after setting it separately in the settings page, in the app’s location information permission.

In addition to additional function improvements, various functions have been improved more conveniently. • Added a function to read the alarm time and preset alarm name when a ringtone alarm occurs in the clock app. • Search contacts saved in English by entering Korean.

* For some apps, after updating the software, you must update the app itself. (Example: calculator, voice recording, Samsung Internet, Samsung Pay, Samsung Health, Samsung Notes, Samsung Music, etc.)
* Due to changes in the new OS, SD card files are not supported in the Dual Messenger app. To share files on the SD card, select the Share function in the Gallery app or My Files app.
* The file sharing function of the sharing panel’ Wi-Fi Direct’ is no longer supported on Android 11. (Receive when sharing files on previous devices) From now on, you can share files with Nearby Share.
* Chromecast connection via Smart View is no longer supported due to compatibility issues with Google Chromecast devices. Chromecast functionality can be used through external apps that support Chromecast, such as Google Home.


You can check our complete One UI 3.0 Features here.

One UI 3.1 (Android 11)

Released on January 14 alongside Galaxy S21 series.

  • Calendar
    • Extract the date and address from the event title and recommend automatic registration.
    • Receive notifications from SmartThings devices that also have specified schedule notifications.
  • Camera
    • The performance of Camera has been improved
  • Display
    • Eye comfort shield function has been added.
    • The color temperature of the screen automatically adjusts for the time of day.
  • Buds Auto Switching
    • Support Buds auto switching between Galaxy phone and tablet.
  • Reminder
    • Extract the date and address from the reminder memo and recommend to register automatically, and remind important information by situation.
  • Share Sheet
    • It is now possible to protect your privacy by deleting the location information of previously taken photos before sharing or posting them on social media.
  • Social Platform
    • Synchronize valid links created on devices with the same registered Samsung account.
    • The use of social media services has been simplified. It is possible to share profiles, photos, notes, schedules, and more with friends simply by logging in to your Samsung account.
  • Photo Editor
    • Object eraser feature has been added to Labs in Photo Editor.
    • Using Erase Objects allows you to erase an object which you want in the photo.

One UI 3.1.1 (Android 11)

Released on August 11 alongside Galaxy Z Fold 3 and Flip 3.

Multi window

  • Touch and hold text, a link, or a file in Notes, My Files, Messages, or Samsung Internet, then drag it to the edge of the screen to open it in split screen or a pop-up window.
  • Arrange your open apps into multi window configurations so you can see more at once.

Home screen

  • Keep your Home screen layout in sync between the cover and main screens. Changes in one place are reflected in the other.

Edge panels

  • The background screen is no longer blurred when you open edge panels.


  • Use Capture View to review up to 3 pictures or videos on the screen at once and scroll through up to 100 recent shots. You can compare, zoom in on, delete, and share shots without ever leaving Camera.
  • Preview filters and face effects on the main screen and cover screen when using Dual Preview. That way, both the photographer and the subject can see exactly how every shot’s going to look.
  • Use Dual preview to preview AR Emoji Camera and AR Doodle videos on both the main screen and cover screen.
  • Record AR Doodle videos in 9:16, 1:1, and full screen to show them off in a variety of different places.


  • Split-screen view is now supported on the main screen.

Samsung keyboard

  • Better preloaded stickers.

Digital Wellbeing

  • Turn on Bedtime mode whenever you want. Going to sleep at a different time than usual? No problem.


Try experimental features to get more out of the large screen and Flex mode.

  • Open all apps in split screen or pop-up view and customize app aspect ratios in full screen.
  • Rotate any app to portrait or landscape, even if it’s not normally supported.
  • Use Flex mode with more apps when your phone is partially folded.
  • Pin the Apps edge panel to the screen as a taskbar for quick app switching.

Additional large screen improvements

  • When you leave the Clock app while a timer is running, a mini timer will appear on top of other apps so you can keep track of how much time is remaining.
  • Navigation rail has been added to several apps to give you more space for primary content. (Reminder, Calendar, My files, Tips, Weather)
  • Secondary apps can be opened in small overlay windows to keep you focused on your main task. (Phone, Contacts, Gallery)

One UI 4.0 (Android 12) [Beta stage]

Home screen

  • Both the design and function of the home screen widget have been improved so that you can easily access more information, and you can also get recommended widgets that are useful to you.

Lock screen

  • You can easily change audio output devices such as headphones and speakers on the lock screen, and control functions are provided according to the music app you are using.
  • A voice recording widget is provided on the lock screen, so you can record your voice without unlocking your phone.
  • A monthly calendar is displayed in the calendar widget so that you can check important events on the lock screen.

Always On Display

  • You can set the Always On Display to turn on whenever you receive a notification.
  • New animated stickers are available.

Quick Settings Window

  • To make it easier to view notifications, the layout (of individual notifications) has been improved, and sound notifications and silent notifications have been combined into one section.
  • The brightness adjustment bar in the quick settings window is enlarged, so you can easily adjust the screen brightness.

Dark Mode

  • Backgrounds, icons and illustrations are automatically dimmed to keep the overall consistency and eye comfort.

Charging Effect

  • When charging is started, different charging effects are visually provided depending on the power, allowing you to intuitively check the difference in charging speed.

Samsung Keyboard

  • Conveniently enter emojis, GIFs, and stickers with the press of a button on your keyboard.
  • You can combine 2 emojis and add animation effects to express your emotions or feelings more richly.
  • Animated stickers are provided to make the conversation more enjoyable.
  • Added ability to check spelling and grammar when writing English (provided by Grammarly).


  • When you open the Tips app, you can see a preview video that briefly explains the Galaxy features, so you can check the various features of your Galaxy at a glance.


  • Customize the apps that appear when you open the Share panel, swipe left or right to quickly switch between the list of apps and the list of people you want to share with.
  • Added an easy fix when sharing photos that are out of focus or out of frame.


The layout of the camera screen has been streamlined so that you can enjoy shooting moments even more, and improved to display only essential information for shooting. The scene-by-scene optimization feature of Photo mode is retained, but the button is only visible at night or when scanning documents, and settings for Portrait and Night mode have been improved to be more intuitive.

  • Lens & Zoom: The lens button icon has been changed to a magnification indicator to clearly show the current zoom magnification, and a “1x” button is displayed for modes that only support wide lenses, allowing you to easily zoom in and out of the screen.
  • Recording a video without missing the desired moment: Unlike the conventional method, where you have to press the button and release your finger to start recording, video recording starts immediately when you press the button, so you can capture all of your precious moments without missing them. In photo mode, press and hold the button to start video recording, then drag in the direction of the lock icon to continue recording even if you release your finger from the button.
  • Single Take: An additional shooting time function is provided to capture precious moments longer, and the shooting option setting menu has been improved more intuitively, making it easier to select the desired content.
  • Pro/Pro video: By grouping various manual setting items with similar functions, the design is more concise, and when the vertical/horizontal guides are turned on, a level is displayed to prevent the screen from tilting during shooting.
  • Improved scanning function: A magnifying glass is provided for fine editing after scanning a document, and when scanning a QR code, the user can select and execute the desired option according to the type of QR code.


  • A preview of the video is displayed on the story cover, you can play the highlight video by tapping the preview, and you can see on a map where the photos of the story were taken.
  • Various options have been added to make sorting albums with many photos more convenient.
  • When you open an album, the album cover is displayed at the top of the screen.
  • Suggested search terms have been improved to make it easier to find photos and videos, and recent searches are also included.
  • Remastered photos can be reverted back to the original at any time, even after saving.
  • You can edit the date, time, and location of photos and videos.

Photo/Video Editor

  • Add fun emojis and stickers to your photos and videos.
  • You can create a video collage by selecting various images and videos from the gallery.
  • A light balance option has been added that allows you to adjust the contrast, shadow, and emphasis of a photo like natural light.
  • The editor function has been improved to make it easier to control the highlight video.
  • You can easily return the edited video to the original at any time, even after saving.
  • A function has been added that allows you to cut out any part of a photo, such as a face, pet, or building, and paste it on another photo.

AR Emoji

  • You can use AR Emoji as a profile for your contacts and Samsung account. You can choose from over 10 poses or even take your own funny look.
  • Added a new AR Emoji sticker that only shows your face. Decorate your photos with new AR Emoji stickers and share them with your friends.
  • You can create a fun video of AR Emoji dancing. You can quickly find and select a template you want with hashtags such as #Hunjam, #Cutie, #Party, etc.
  • You can create AR Emoji’s clothes by drawing them yourself.


  • Pin the window options menu to the top of the pop-up window and make it easy to use when you need it.
  • You can easily enlarge or reduce the picture-in-picture (PIP) window with your finger.
  • The design has been changed so that the screen in use is not blurred when the Edge panel is opened.


  • Added safety and emergency menus to manage emergency contacts and safety information in one place.
  • The search function has been improved so that you can find the settings you want right away when you need them, and related functions can also be recommended depending on the search term.

Digital Wellbeing

– We’ve added a driving monitor to help you focus more on driving, so you can see how much you’ve been using your phone and which apps you’ve been using while driving.


  • The background color of the dual clock widget is changed according to the day and night according to the set time zone of the city.


  • Add events faster in the Quick Add area, and the search functionality and layout have been improved to make it easier to find events.
  • Today’s events and monthly calendars are displayed on the home screen widget.
  • You can create a shared calendar and invite other Galaxy users.


  • You can view a variety of content, including photos, videos, and web links, directly from the search results of the Messages app.

My Files

  • The search function has been improved so that you can find the file you are looking for even if you misspell some of your search terms.
  • The Recent Files area has been enlarged to make it easier to find recently used files.

Samsung Internet

  • The design has been improved to make it easier to check real-time search results or search suggestions while entering a search term in the address bar.
  • A search widget is provided to search for what you want right from the home screen.
    – If you have previously used secret mode, Samsung Internet will automatically run in secret mode the next time to protect your personal information.

Samsung DeX

  • Improved app compatibility, allowing more app screen resizing.
  • You can set the touchpad scroll direction in DeX settings as you like.

Device Care

  • The main screen shows battery and security issues so you can quickly identify and fix them.
  • The overall status of your phone is displayed as an emoji for easy identification.
  • You can run the self-diagnosis function of Samsung Members directly from Device Care. When you run a self-diagnosis when your phone is having problems, you can quickly determine the cause of the problem and how to fix it.

Samsung Health

  • The tab layout at the bottom of the screen has been improved to make it easier to use the functions you want.
  • View your profile, weekly breakdowns, badges and highscores in the My Page tab.
  • When selecting gender, you can select “Other” or “None”.
  • You can invite friends to a team match by sending a link.
  • More snacks to choose from on the food tracker.

Bixby Routines

  • Routines can be started under more different conditions, such as during a call or when a specific notification arrives.
  • More ways to connect and disconnect Bluetooth devices, as well as perform more complex tasks with routines, such as optional battery settings for increased speed.
  • In the edit page, you can change the order by long-pressing the action, and an advanced option has been added to either wait for a certain amount of time before starting the action, or to let the user confirm it.
  • Eliminate the limitations of condition and action combinations, allowing routines to do more.
  • You can use images from your camera or gallery to create custom icons to use in your routine.


  • Move the mouse pointer to a corner of the screen to directly perform a specific action.
  • You can adjust the screen contrast and size at the same time in screen modes such as high contrast and large screen.
  • Quick access to accessibility features at any time by selecting the floating button.
  • You can select various screen options according to your needs, such as reducing transparency and blur, or making the screen darker.
  • Notifications can be colored differently for each app so you can quickly see which app sent the notification.
  • The Magnifier window has been integrated into the Zoom menu, allowing you to zoom in on screen content in more ways.


  • You can check at a glance which apps are using sensitive permissions such as your location information, camera, and microphone from the permission usage status, and you can immediately revoke permissions for any app that is a little insecure.
  • When an app uses the camera or microphone, a green dot is displayed on the right side of the status bar, so you can immediately know which app is shooting or recording without your consent. You can temporarily block camera and microphone permissions for all apps in the quick settings window.
  • You can manage apps that use location information more precisely. For apps that don’t require your exact location, such as a weather app, you can use the service by sharing your approximate location.
  • You can set to send a notification when other apps access important information such as passwords and credit card numbers when copied to the clipboard.

For some apps, after updating to One UI 4, each app needs to update itself.

James is the lead content creator on Sammy Fans and mostly works on Samsung's firmware section. His first phone was the Samsung Galaxy S4 and continue to get new S series devices. Most of the time, James tries to learn about new technologies and gadgets but he also sneaks a bit of free time to nearby rivers and nature.

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Android 12

Samsung Galaxy M31 One UI 4.0 (Android 12) test build appeared on Checkfirm



Samsung Galaxy M31 One UI 4

If we are talking about Samsung’s Galaxy M31 smartphone, then it is one of the best budget smartphones as it provides impressive performance to the users through its big battery life, 64MP quad-camera setup, Exynos 9611 SoC processor, and more remarkable features.

In terms of software, the device comes with One UI 2.0 based on Android 10. Later, the company rolled out One UI 3.0 based on Android 11 last year, and now users of the device are waiting for the next major Android update i.e. Android 12 (One UI 4.0).

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Samsung Galaxy M31 One UI 4

Now, the latest information from the One UI Test Build Detection app – Checkfirm reveals that the One UI build is currently being tested on the Galaxy M31. However, the testing for a major One UI update is conducted for the Indian variant as the Samsung India CSC code is INS.

In the screenshot, we can see that the One UI build has been tested on the Galaxy M31 with the PDA version – M315FXXS2BUK2. At the moment, we don’t have any information on the release date of the Android 12 based One UI 4.0 update for the Galaxy M31 but we can expect from today’s information that the release is near.

Read more: Samsung One UI 4.0 Update Changelog

Based on Android 12, One UI 4.0 comes with a set of new features redesigned UI with revamped icons, color palette, personalized widgets recommendation, and privacy functions. Additionally,  the One UI 4.0 also improves all of the stock apps, adds more lock screen widgets, quick settings toggles to turn off the camera and mic access, and more.

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Android 12

Samsung Android 12: Galaxy S21, Note 20, S20, Note 10 and S10 One UI 4.1 Update Info



Samsung One UI 4 Extra Dim

Since 2019, Samsung launched five flagship lineups: Galaxy S10, Galaxy Note 10, Galaxy S20, Galaxy Note 20, and Galaxy S21. Among them, the Galaxy S line includes three models, and the Note range consists of two models, although every lineup (except for Note 20 and S21) includes an affordable variant as well.

Samsung confirmed that all of the above-mentioned series phones are eligible for the Android 12 update. Swiftly, the company has rolled out the One UI 4.0 update to all of its flagships, however, consumers are now wondering about the One UI 4.1.

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If you own a Galaxy flagship and are interested to get the latest news on Samsung Android 12-based One UI 4.0 and One UI 4.1 for your device, you should regularly check this article. You can directly head to the specific lineup tracker by clicking on the links below.

Jump to page:

One UI 4.0 Update Roadmap:

On November 15, Samsung officially released the Android 12-based One UI 4.0 update roadmap for the Galaxy devices. The rollout plan revealed the One UI 4.0 update release timeline for various Galaxy phones and tablets in Brazil. You can check it by clicking the link below:

Galaxy S21 Android 12 One UI 4.1 Update Tracker

Samsung Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra ship with Android 11-based One UI 3.1 pre-installed. Starting Android 12, these models will get major upgrades up to Android 14.

Samsung rolled out the stable Android 12-based One UI 4.0 update to the Galaxy S21, S21+ and S21 Ultra devices in various regions. You can check the current rollout status here.



January 24, 2022

  • Samsung officially confirmed that the Galaxy S22 series will be introduced at the Galaxy Unpacked 2022 in February. Along with the Galaxy S22 series, the company will also launch the new version of One UI that will be the One UI 4.1.


December 28, 2021

  • Breaking: Samsung resumes Galaxy S21 Android 12 One UI 4.0 update rollout! Read more


December 21, 2021

  • Samsung delayed Galaxy S21 Android 12 One UI 4.0 rollout due to Google Play issue. Read more


December 19, 2021

  • Samsung will release One UI 4.1 in February 2022, starting Galaxy S21, Note 20. Read more


November 23, 2021

  • Samsung Galaxy S21 Ultra gets Pro Mode for Telephoto lens with Expert RAW app, thanks to Android 12/One UI 4.0. Read more

Galaxy Note 20 Android 12 One UI 4.1 Update Tracker

The Galaxy Note 20 and Note 20 Ultra are the premium Note flagships from Samsung. The company had shipped these phones with One UI 2.5 on top of Android 10. Currently, these models running the Android 11-based One UI 3.1 and eligible to get Android 12 and Android 13 upgrades.


January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 30, 2021

  • Samsung released official Android 12 One UI 4.0 to Galaxy Note 20 and Note 20 Ultra. Read more


December 19, 2021

  • Samsung will release One UI 4.1 in February 2022, starting Galaxy S21, Note 20. Read more


Galaxy S20 Android 12 One UI 4.1 Update Tracker

The last year’s Galaxy S20, S20+, S20 Ultra, and S20 FE came with Android 10 and One UI 2.x version out of the box and upgraded to the Android 11 last year. All of these devices are eligible to get platform updates up to Android 13.



January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 29, 2021

  • Samsung Galaxy S20 gets official Android 12-based One UI 4.0 update. Read more

Galaxy Note 10 Android 12 One UI 4.1 Update Tracker

The Galaxy Note 10, Note 10+ and Note 10+ 5G are the older Note flagships, which were shipped Android 9 and received two major Android updates so far. Meanwhile, the Galaxy Note 10 Lite launched with Android 10 and all of these handsets are compatible with three Android upgrades.

Also Check: Samsung Galaxy Note 10 Series Android 12 One UI 4.0 Update Status



January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 30, 2021

  • Samsung Galaxy Note 10 gets official Android 12 One UI 4.0 update. Read more


Galaxy S10 Android 12 One UI 4.0 Update Tracker

Samsung’s Galaxy S10e, S10, S10+, and S10 5G were shipped the Android 9 while the Galaxy S10 Lite ships with Android 10. It means, the Android 12 is going to be the last major update for the Galaxy S10 flagships, but the Galaxy S10 Lite will also get the Android 13.

Also Check: Samsung Galaxy S10 Series Android 12 One UI 4.0 Update Status



January 24, 2022

  • The One UI 4.1, based on Android 12, will launch in February 2022 alongside the Galaxy S22 series flagships, Samsung officially confirmed.


December 30, 2021

  • Samsung Galaxy S10 (5G too) One UI 4.0 Android 12 rollout begins! Read more

This article will be updated regularly!

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One UI 4.0

Samsung One UI 4.0 Update Changelog



Samsung One UI 4 Changelog

After several beta updates, Samsung officially announced a stable One UI 4.0 based on the Android 12 update. As expected, it comes with numerous new features and changes for a better experience.

One UI 4.0 is the fourth iteration of Samsung’s custom skin which brings with redesigned UI with revamped icons, color palette, apps enhancement, personalized widgets recommendation, and privacy function inspired by Android 12.

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Samsung One UI 4 Changelog

Based on Android 12, One UI 4 makes it easy to focus on what’s important and gives you the option to personalize your Galaxy to suit your style as well as allow you to seamlessly switch to other Galaxy devices.

If you have also updated to this major update on your device and want to know about the features of One UI 4.0, then this article is going to be very helpful.



Ahead of the stable release, Beta Operation Manager shared the full changelog of the One UI 4.0. Android 12 based One UI 4 brings you a wide collection of new features and enhancements for your Galaxy devices. You can check the official Samsung One UI 4 changelog and instructions below.


Color palette

Customize your phone with unique colors based on your wallpaper. Your colors will be applied to menus, buttons, backgrounds, and apps throughout your phone.



One UI 4 offers strong privacy protection to make sure your personal information doesn’t fall into the wrong hands.

  • Permission info at a glance
    See when each app accesses sensitive permissions such as Location, Camera, or Microphone in Permission usage. You can deny permissions for any apps you don’t feel comfortable with.
  • Camera and microphone indicators
    Keep prying eyes and ears away. A green dot will appear in the upper right corner of the screen when any app is using the camera or microphone. You can also use quick panel controls to temporarily block all apps from using the camera or microphone.
  • Approximate location
    Keep your exact location private. You can set apps that don’t need to know exactly where you are to only have access your general area.
  • Clipboard protection
    Keep your passwords, credit card numbers, and other sensitive information safe. You can choose to receive an alert whenever an app accesses content copied to the clipboard in another app.

Samsung Keyboard

More than just typing, Samsung Keyboard is all about expressing yourself and having fun.

  • Quick access to GIFs, emojis, and stickers
    Self-expression is a tap away. Get to your emojis, GIFs, and stickers directly from the keyboard with a single button.
  • Animated emoji pairs
    Can’t find the right emoji? Combine two emojis together, then add an animation to really get your feelings across.
  • Even more stickers
    Spice up your conversations with a variety of new animated stickers available to download.
  • Writing assistant
    Keep your grammar and spelling on point with the new Writing assistant, powered by Grammarly (English only).

Home screen

It all starts on the Home screen, where your favorite apps and features are just a tap away. One UI 4 helps you keep your home screen looking its best all the time.

  • New widget design
    Widgets have been redesigned to look better than ever, with info that’s easy to see at a glance and a more consistent style.
  • Easier widget selection
    Having trouble finding the right widget? You can now quickly scroll through the widget list to see what’s available from each app. You’ll also get recommendations for useful widgets to try out.

Lock screen

Use widgets to handle quick tasks without unlocking your phone, whether it’s controlling your music, checking your schedule, or capturing your best ideas.

  • Listen where you want
    Switch audio output from buds to speakers to your phone, all from the Lock screen.
  • Voice recording
    Got a great idea? Record a voice memo without unlocking your phone.
  • Calendar and schedule at once
    Check today’s schedule along with your calendar for the rest of the month on the Lock screen.


Enjoy a simpler layout while you take pictures and videos. The scene optimizer button only appears in Photo mode if there’s low light or you’re scanning a document. Portrait and Night mode settings are now tucked away and more intuitive.

  • Lens and zoom
    Lens icons show the magnification level, so you know how much you’re zoomed in.
  • Video that never misses a moment
    Recording starts immediately after you tap the Record button, instead of when you release it, so that you catch those precious moments before they’re gone. In Photo mode, you can touch and hold the Shutter button to start recording a quick video, then drag your finger to the Lock icon to continue recording without holding down the Shutter.
  • Keep your single takes going
    Add 5 seconds of extra time to Single take captures so you don’t miss a moment even if it goes into overtime. It’s also easier to select what you want to capture.
  • Pro photography
    Stay in control with the redesigned Pro and Pro video mode settings. The cleaner look helps you focus on the shot, and the new level indicators added to the grid lines help you keep shots balanced.
  • Enhanced scanning
    Scan documents, then tap the magnifying glass to zoom in and edit them immediately. You can also do more after scanning QR codes, like calling or emailing someone instead of just adding their contact info to your phone.
  • Portraits for pets
    Take beautiful pictures of your furry friends with various portrait effects. Portrait mode now works with cats and dogs on both the front and rear cameras. Some portrait effects can only be applied after you take the picture.


Whether you’ve got thousands of pictures and videos or just a few treasured moments, Gallery makes it easier to find what you need and keep your collection organized.

  • Enhanced stories
    See your stories come to life with highlight videos that are created automatically. Just tap the preview at the top of each story to watch. You can also explore where the pictures in your stories were taken in the new Map view.
  • Easier albums
    Sort through albums more easily—even if they’ve got tons of pictures. In fact, you can sort albums by how many p
  • Worry-free remastering
    Revert remastered pictures to their original versions at any time, even after they’re saved, so you never have to worry about losing the original.
  • More control over information
    Change or remove the date, time, and location of your pictures to correct it or keep it private. You can also select several pictures and edit their information at once.

Photo and video editor

Sometimes your photos and videos need a few tweaks. One UI’s Photo and Video editors are there to make your pictures look their best before you share them.

  • Emojis and stickers
    Use an emoji to cover the face of a shy friend or add stickers to create fun pictures and videos.
  • Video collages
    Make moving collages that include pictures, videos, or a combination of both. Pick out the perfect moments and create your masterpiece.
  • Lighting control
    Picture too dark because of bad lighting? The new Light balance feature helps you pull out all the details to make it look great.
  • Highlight reels
    Easily turn a set of pictures and videos into a beautiful movie. Just choose a theme, and the AI will add the music and transitions automatically.
  • Never lose the original
    Get bold with your editing! You can now revert both pictures and videos back to their original versions after they’re saved, or save them as copies to keep both the original and edited versions.
  • Paste from one picture to another
    Experiment with mixing and matching faces, pets, buildings, and more. You can cut any object out of one picture and paste it into a different one.

AR Emoji

Use your own personal emojis to spice up your messages, make fun videos, and more. You can create a digital version of yourself, or try a different look. The possibilities are endless.

  • Jazz up your profile
    Use an AR emoji as your profile picture in Contacts and Samsung account. You can choose from over 10 poses or create your own expressions.
  • Face stickers
    Pretend to be your emoji with new stickers of your emoji’s face. Have fun decorating your photos and sharing them with your friends.
  • Dance the night away
    Make cool dance videos with your AR emojis. Choose templates from 10 different categories including #Fun, #Cute, and #Party.
  • Design your own clothes
    Ever wanted to be a fashion designer? You can now use your own drawings to create unique clothes for your AR emojis.


One UI helps you stay connected and share your experiences with others. Just tap the Share button in any app.

  • More customization
    Make sharing your own. You can customize the list of apps that appear when you share content to keep the clutter away and focus only on the apps you use regularly.
  • Easier navigation
    New layout and better navigation makes sharing a breeze. Swipe left or right to scroll through apps and contacts when you’re sharing.
  • Photo sharing
    When you share a picture that doesn’t look quite right, whether it’s out of focus or not framed well, we’ll let you know and give you suggestions for fixing it.


One UI 4 makes it even easier to keep your busy life organized.

  • Check your schedule on the Home screen
    A new widget shows your schedule for the day along with a full calendar for the month.
  • Quick add events
    Need to add something to your calendar in a hurry? Just enter a title and you’re done.
  • More search options
    You’ve got more ways than ever to find your calendar events. Choose from recent search keywords or filter by color or sticker.
  • Share with others
    Sometimes you need to keep others in the loop. It’s now easier to share your calendars with other Galaxy users.
  • Easier date and time selection
    Setting event details is a breeze with separate date and time options.
  • Recover deleted events
    Events you delete will stay in the Trash for 30 days so you can get them back if you need them.

Samsung Internet

One UI’s fast and secure web browser now makes it even easier to find the webpages you’re looking for and protect your privacy.

  • Search suggestions
    Get more search suggestions when you enter text in the address bar. Results will appear with an all new design.
  • Search from the Home screen
    The new search widget helps you find what you’re looking for, right from the Home screen.
  • Start in Secret mode
    To protect your privacy, Samsung Internet will automatically start in Secret mode if you were using Secret mode during your last browsing session.

Device Care

See your phone’s performance, security, and battery life at a glance, solve problems quickly, and get deep diagnostics for more complex issues.

  • Battery and security at a glance
    Battery and security issues will appear right on the main screen so you can solve problems more quickly.
  • Understand your phone’s overall status
    Your phone’s overall status is shown as an emoji, so you can understand instantly.
  • Diagnostic checks
    Now you can get right to Samsung Members diagnostics from Device Care. If something seems wrong with your phone, try the diagnostic tests to find out what the problem is and get suggestions for solving it.

Samsung Health

Manage all your health data in one place and start building habits for a better tomorrow. Track your exercise, sleep, food intake, and more. One UI 4 makes it easier than ever.

  • All new design
    Your important data is just a tap away. Everything you need is in easy reach as four tabs at the bottom of the screen.
  • My page
    Get a summary of your health stats, achievements, personal bests, and progress on the My page tab.
  • Challenge your friends
    Starting a Together challenge is easier than ever. Invite friends by sending a link.
  • More inclusive
    Gender options are more inclusive. You can now choose Other or Prefer not to say.
  • More food options
    Recording your food intake is easier with more snacks added to the food tracker.

Bixby Routines

Make your phone do more for you. Turn on Wi-Fi automatically when you come home, or set your phone to silent when you’re at work. One UI 4 gives you even more possibilities.

  • More conditions
    More conditions are available for your routines. Start a routine during a call or when a certain notification arrives.
  • More actions
    You can now turn on Enhanced processing with a routine. There are also more options such as connecting and disconnecting Bluetooth devices.
  • More control
    Reorder actions by touching and holding actions on the edit page. Advanced options have also been added to let you wait before an action starts, confirm actions, and more.
  • More combinations
    We’ve removed restrictions for some combinations of conditions and actions so you can do even more with your routines.
  • More customization
    Create custom icons for your routines using the Camera or an image from Gallery.



One UI is designed for everyone. In One UI 4, you’ll get even more options to help you use your phone in the way that’s most comfortable for you.

  • Always there when you need it
    Access accessibility features more quickly with a floating button that’s always available.
  • Mouse gestures
    Perform actions more quickly by moving your mouse pointer to one of the 4 corners of the screen.
  • Adjust your screen at once
    Adjust contrast and size at the same time with custom Display mode (High contrast or Large display).
  • Eye comfort
    More visibility options are available to meet your needs. You can reduce transparency or blur.
  • Extra dim screen
    If your screen is too bright, even at the lowest brightness setting, turn on Extra dim for more comfortable reading in the dark.
  • Customizable flash notifications
    Make the screen flash when you receive a notification. You customize colors for each app so you can easily determine where a notification is coming from.
  • Easier magnification
    Magnifier window has been merged with the new Magnification menu, giving you more options and more control for magnifying content on the screen.

More features and improvements

  • Better Always On Display
    Never miss a notification. You can now set Always On Display to turn on whenever you get a notification. New animated stickers are also available to keep your Always On Display looking fresh.
  • Enhanced Dark mode
    To keep you comfortable in the dark, Dark mode now automatically dims wallpapers and icons. Illustrations in Samsung apps now have Dark mode versions with darker colors for a more consistent experience that’s easier on your eyes.
  • Charging info at a glance
    When you start charging, different visual effects let you know your charging speed more intuitively.
  • Easier brightness control
    A bigger brightness bar in the quick panel makes it easier to change screen brightness with a swipe.
  • Tips preview videos
    Learn more about what your Galaxy can do with preview videos on the main screen of the Tips app.
  • Safety and emergency menu
    The new Safety and emergency menu in Settings lets you manage your emergency contacts and safety information all in one place.
  • Settings search enhancements
    Improved search features help you find the settings you need, when you need them. You’ll get suggestions for related features depending on what you search for.
  • Keep your eyes on the road
    The new Driving monitor in Digital Wellbeing keeps track of when you use your phone while driving. You’ll get reports on how much you used your phone and which apps you used.
  • Skip an alarm just once
    Feel like sleeping in? You can now turn off an alarm just for one occurrence. It will turn back on automatically after it’s skipped.
  • Day or night at a glance
    Have a friend on the other side of the world? It’s easier to see if it’s a good time to contact them. The dual clock widget now shows different background colors for each city depending on whether it’s day or night.
  • Switch from texts to calls
    Texting not cutting it? Tap the person’s name at the top of the conversation to see their details or start a voice or video call.
  • More search results in Messages
    Now you can search your messages for photos, videos, web links, and more. The results are all filtered so you can jump right to what you’re looking for.
  • Easier search in My Files
    Find the file you’re looking for, even if there’s a typo or the name doesn’t match exactly. The Recent files area has also been expanded to help you quickly locate files you’ve used or received recently.
  • More complete desktop experience
    More apps are resizable in Samsung DeX, so you can multitask and get more done throughout the day. You can also change the touchpad scrolling direction in DeX settings to match your personal preference.
  • Enhanced Edge panels
    Keep your current app in view while using edge panels. Blurring has been removed to help you see more at once.
  • Resizable picture-in-picture
    If a floating video is getting in the way, pinch your fingers together to make it smaller. Want to see more? Spread your fingers apart to make it bigger.
  • Quick access to pop-up window options
    For easier multitasking, you can pin the window options menu to the top of the window to make it easier to access.

Some apps will need to be updated separately after the One UI 4 upgrade.

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