Saturday, July 31, 2021
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)

[Expected to be released with the upcoming Galaxy S series in early 2021]

One UI 3.5 (Android 11)

[Expected to be released with the upcoming Galaxy Note series in 2021]

One UI 4.0 (Android 12)

[Expected: On the basis of the update tradition of Samsung in 2021]

James Lee Taylor
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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