Phones
Why leaving your Galaxy Z Fold 8 or iPhone Duo open overnight might be the unofficial fix for screen creases
Foldable phones are more mature than ever, and Apple has also entered the segment, eight years after being on the fence. Samsung’s Galaxy Z Fold 8 and Apple’s iPhone Duo are available for purchase, but one long-standing complaint remains: the initial visibility and worsening state of screen creases.
Taking physics into account, it is possible to avoid an early arrival of wrinkles on the screen. That doesn’t require you to do anything special; just a consistent charging strategy is all you need to adopt for a less visible crease on your screen.
Here’s the analysis and its scope:
Leaving a foldable open overnight will not erase a crease, and we found no guidance from Samsung or Apple recommending it. The habit rests on sound polymer physics, a few owner anecdotes and one widely shared leaker post.
The devices at the center of the claim are real, and the two share one headline number:
- Galaxy Z Fold 8: unveiled July 22, 2026, on sale August 7, with a 7.6-inch inner display and Samsung’s “Flex Titanium” backing.
- iPhone Duo: announced September 9, 2026, shipping October 23 from $1,999, also with a 7.6-inch inner display.
- The claim: A reputed tipster said a slight crease from folding overnight vanished after about 10 minutes of being unfolded.
Why the physics is plausible, and where it stops
A foldable panel is a stack of glass, plastics, and adhesives. Creases come from a misaligned neutral layer, and that today’s optically clear adhesives are deliberately viscoelastic: they soften during slow bending to relieve fatigue and stiffen under sudden force.
Viscoelastic materials respond in two ways:
- Part of the strain is recoverable and fades after the load is removed, over minutes to hours
- Part is plastic and stays
The split fits Ice Universe’s findings: overnight crease fading in about 10 minutes. It also fits the opposite reports: some early Fold 8 owners say the crease looked worse after one to two weeks.
My take: Staying open can plausibly let the recoverable part relax, softening a crease you notice at breakfast. It cannot undo permanent deformation, and nobody has shown that it slows it.
What the hardware does and does not do
Samsung’s Flex Titanium backs the display with a titanium alloy film and plate, which it says reduces crease visibility and lets the phone run about 0.1 mm thinner.
Apple describes a roughly 10-layer inner display with a custom polymer nano-texture cover layer and adhesives that let layers slide to relieve bend stress.
| Feature | Galaxy Z Fold 8 | iPhone Duo |
|---|---|---|
| Inner display | 7.6 inch | 7.6 inch |
| Crease approach | Titanium alloy film and plate backing | Nano-texture polymer layer, sliding adhesives, carbon fiber plates |
| Hinge | Redesigned for easier opening | More than 100 components, 3D-printed cover |
| Published fold-test data | None found | None released by Apple |
| Reported problems | Crease more visible after 1 to 2 weeks, per social posts | Inner-display cracks on a small number of units, per Apple |
Neither design makes the crease vanish. Material scientists are chasing polymers that do not set a crease at all. A film in a May 2026 Advanced Materials study survived 500,000 folds at a 0.5 mm radius, but that is lab material, not a shipping phone.
Image: iPhone Duo | Source: Gizmodo Japan (X)
The cost of leaving it open
An open 7.6-inch inner screen sits exposed to dust, pets, keys, and elbows for eight hours. An independent durability test of the Fold 8 found that the titanium layers do not protect the display’s plastic cover from scratches, that dust remains a major concern at an IP48 rating, and that sitting on an unfolded screen can cause damage.
The Duo adds its own caution. Apple says a small number of units have shown inner-display cracks shortly after purchase and tells owners to contact AppleCare. iFixit suspects the hinge, and nothing links the cracks to whether the phone was open or closed.
What would change our view is a controlled test that measures crease depth over several weeks, with and without overnight opening. Neither company has offered one.
Samsung is reportedly planning a big battery upgrade for its upcoming Galaxy A38 smartphone. The phone is expected to launch in 2027 and could have the biggest battery ever used in a Galaxy A-series phone in Europe.
According to the latest information, the Galaxy A38 will come with a 5,882mAh rated battery. Its advertised capacity is expected to be around 6,000mAh. This is almost 20% bigger than the batteries Samsung has used in its Galaxy A series phones for years.
The bigger battery could help users use their phones for longer without charging them frequently. However, it is not yet clear whether Samsung will use silicon-carbon battery technology.
There is also no confirmed information about the battery capacity of the Galaxy A58. It may also get a 6,000mAh battery, but this has not been confirmed yet.
Aside from this, the Galaxy A38 may not bring major changes. It is expected to feature a 50MP main camera, an 8MP ultra-wide camera, and a 5MP macro camera. For selfies and video calls, it may have a 12MP front camera. Samsung could use the same camera setup found in the Galaxy A36 and Galaxy A37.
Samsung is expected to launch the Galaxy A38 and Galaxy A58 together in March or April 2027. The Galaxy A38 could cost close to €500. For comparison, the Galaxy A36 launched at €379, while the Galaxy A37 started at €429.
The Galaxy A38 could be a good choice for users who want a bigger battery, but major camera improvements are not expected. Stay tuned for more information.
Samsung’s next mid-range smartphone is already making headlines months before its expected launch. The Galaxy A58 5G is likely to arrive in early 2027, and fresh information has now emerged about one of its key features. However, the latest development suggests that buyers should not expect a faster charging experience.
A Samsung smartphone identified by the model number SM-A5860 has reportedly cleared China’s 3C certification process. The listing points towards 45W wired charging support, using 10V/4.5A or 15V/3A output.
Another detail worth noting is that Samsung is likely to follow its charger-free packaging approach. Buyers may need to arrange a compatible charging adapter separately after purchasing the device.
The 45W charging support indicates that Samsung is keeping things familiar rather than introducing a new charging standard. The Galaxy A58 will reportedly match the charging speed of the Galaxy A57.
Image via @ZionsAnvin
Aside from this, Samsung may focus on improving the overall experience through a brighter screen and a new Exynos 1780 chipset. It also include IP68 water and dust resistance, stereo speakers and an in-display fingerprint scanner.
Earlier reports suggest that Samsung is unlikely to make major changes to the camera department. The Galaxy A58 could come with a 50MP primary sensor, a 12MP ultrawide camera and a 5MP macro unit. A 12MP front camera is also expected. This setup would be largely identical to the Galaxy A57.
The smartphone is expected to make its debut in early 2027. Stay tuned for more information.
Samsung Galaxy S27 Ultra is dropping one Telephoto camera in its revamped layout isn’t just a design shift, but a notable cost-cutting measure. A fresh leak compares how the Galaxy S27 Ultra camera layout differs from the Galaxy S26 Ultra.
Recently, folks over at AndroidHeadlines shared plenty of images of the Galaxy S27 Ultra dummy unit built on CAD data. Authors at the outlet compared the new design side-by-side with the iPhone 18 Pro and Pixel 11 Pro.
Three more images shared in the same post reveal something important for potential buyers. The Galaxy S26 Ultra’s camera layout isn’t being retained next year, as the company plans major changes in that particular aspect.
- Dropping the 2nd telephoto sensor
- Bringing sensors to a prominent camera island
Galaxy S27 Ultra dummy with S26 Ultra case applied looks legit. The case fits perfectly on the dummy unit, reiterating minimal dimensional changes. What’s particularly important to look at is the camera layout and sensor placement.
The primary and ultrawide sensors align well in the S26 Ultra case. With one telephoto going away, the third big hole on the case remains vacant. In the next column, the three remaining holes slightly overlap the sensors on the dummy.
Leaked dimensions suggest the Galaxy S27 Ultra could be a little taller, wider, and thicker than the S26 Ultra. Trying the S26 Ultra case on the S27 Ultra dummy is just for comparison; there’s no way the case can be reused on the new model.
Samsung is working on four flagship models for 2027. The lineup will have two low-tier (Base and Plus) and two high-tier (Pro and Ultra) variants. Only Pro and Ultra are getting prominent camera bump and Privacy Display upgrade.
Samsung is making four flagship Galaxy S27 phones for 2027. The official launch is expected in Q1 next year, but the dummy unit of the Galaxy S27 Ultra has just emerged online, compared with key rivals, including the iPhone 18 Pro and the Pixel 11 Pro.
As reported by AndroidHeadlines, the Galaxy S27 Ultra dummy is based on CAD data. The renders we’ve seen in the past are the primary source behind this dummy. This is just an idea; the real product will look way better and more premium.
To recall, the Galaxy S27 Ultra is 163.76 x 78.25 x 7.97mm, compared to 163.6 x 78.1 x 7.9mm for the Galaxy S26 Ultra. The next flagship will be marginally taller, wider, and thicker than its predecessor, and the gap is almost negligible.
Galaxy S27 Ultra dummy hands-on sheds light on the phone’s front, side, and rear appearance.
Comparing side-by-side with the Galaxy S26 Ultra shows a massive difference. The upcoming flagship has adopted a prominent camera island on the back, with the positioning of camera sensors also changing significantly.
Galaxy S27 Ultra looks more like the iPhone 18 Pro rather than a Samsung flagship. Both flagship phones now have a massive camera bump. Samsung is also dumping the second telephoto camera, matching Apple in another big way.
Galaxy S27 Ultra was initially rumored to have a design inspired by Google. Meanwhile, Samsung’s Apple influence has changed the landscape. Now, there’s no similarity between the looks of the flagship Galaxy S27 Ultra and the Pixel 11 Pro.
The comparison is based on dummy units of the Galaxy S27 Ultra and real retail units of the Galaxy S26 Ultra, iPhone 18 Pro, and Pixel 11 Pro. A real comparison will be conducted after the official launch of the Galaxy S27 Ultra next year.
From what we can see, Samsung is adopting the best of Apple. The benefits are real, including a bigger battery at around 5,700mAh, which was once supposed to be impossible, along with a better thermal management system.
Samsung is shifting its Exynos strategy, which could give its Galaxy S27 Pro a major boost. The company is reportedly aligning its MX Division with the System LSI Business to validate the in-house silicon for the next flagship phone.
The shift involves better collaboration between Samsung’s mobile and chip design arm and aims to mitigate the software-driven performance caps on Exynos-powered devices, starting with the flagship Galaxy S27 Pro, via Phonefuturist.
The mobile division, System LSI, and the Mobile eXperience (MX) unit have reportedly entered a joint validation process to optimize the upcoming Exynos 2700 processor.
Historically, independent operation between these teams often left power management, thermal scheduling, and software compatibility to be resolved late in device development.
A synchronized optimization loop would allow System LSI to address efficiency bottlenecks directly within the One UI pipeline, unlocking the chipset’s theoretical capabilities before final hardware freeze.
Industry inputs suggest Samsung secured additional engineering test units for System LSI, hinting at expanded pre-launch validation. Galaxy S27 Pro is expected to narrow the performance variance seen against Snapdragon-equipped variants.
Image via AndroidHeadlines
While the Galaxy S27 Ultra is expected to remain the top-tier hardware offering, placing the S27 Pro at the center of this hardware-software alignment signals a tactical shift. Rather than treating in-house processors as a regional cost-cutting measure, deep co-engineering could allow the Galaxy S27 Pro to deliver stronger sustained performance per watt in daily tasks than unoptimized configurations.
Whether this integrated pipeline extends to an Exynos-powered Galaxy S27 Ultra in select global markets remains unconfirmed. However, establishing tighter cross-divisional execution on the Pro model indicates Samsung is finally aligning its foundry capabilities with its mobile ecosystem strategy.
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