Samsung May Use Thicker Ultra Thin Glass to Reduce the Foldable Phone Crease
The display crease remains one of the biggest complaints about foldable smartphones. Even as hinge designs, screen brightness, and overall durability continue to improve, that visible line down the middle of the inner display still reminds users that foldable screens have not fully reached the polish of traditional smartphones.
Samsung may be preparing a major upgrade to address that issue. According to a Korean industry report, the company is working on a new foldable model referred to as “Wide Fold,” and one of its key improvements could be a thicker layer of Ultra Thin Glass, also known as UTG.
The report claims Samsung’s upcoming Wide Fold may use UTG measuring around 60 micrometers. That would be roughly 30 percent thicker than the 45-micrometer glass reportedly used on the Galaxy Z Fold 8. If accurate, this change could help make the main display look cleaner by reducing the visibility of the crease while also improving long-term durability.
Ultra Thin Glass has become an important part of modern foldable smartphone displays. It gives the screen a more premium feel than plastic-based layers while still allowing the panel to bend. However, making the glass thicker is not as simple as it sounds. A foldable phone must open and close thousands of times without the display cracking, separating, or losing its shape.
Samsung has traditionally used thinner UTG because it lowers the risk of breakage when the device is folded. The trade-off is that a thinner glass layer can make the crease more noticeable and may offer less resistance against damage from sharp objects or pressure on the inner screen.
A thicker UTG layer could solve some of those problems, but it also introduces new engineering challenges. Samsung would need to ensure the display can survive repeated folding, potentially up to 200,000 folds or more over several years of normal use. That requires precise material design, hinge tuning, adhesive improvements, and careful control of the screen’s bending radius.
The timing is especially interesting because Apple is widely rumored to be preparing its first foldable iPhone. That device is expected to focus heavily on display quality, including a less visible crease and stronger screen protection. If Apple enters the foldable market with a cleaner-looking inner screen, Samsung will likely want to defend its leadership with noticeable upgrades of its own.
The rumored Wide Fold could be Samsung’s answer to that pressure. By using thicker UTG, the company may be aiming to create a foldable phone that feels more refined, looks more seamless when opened, and holds up better over time.
Cost may be one reason Samsung has not moved to thicker Ultra Thin Glass sooner. Thicker foldable glass is likely more expensive to produce, and integrating it into a commercial device requires additional research and testing. For a premium foldable smartphone, however, the investment could be worthwhile if it results in a smoother display experience and stronger durability.
For now, the information should be treated as an industry rumor rather than confirmed product details. Still, the direction makes sense. As foldable phones become more mainstream, buyers will expect fewer compromises. A less visible crease, stronger inner display, and better scratch resistance could become major selling points for the next generation of Samsung foldable smartphones.
If Samsung successfully brings 60-micrometer Ultra Thin Glass to its future foldable lineup, the Wide Fold could represent a meaningful step forward for the category. The foldable phone race is no longer just about who can make a screen bend. It is now about who can make that bending screen feel as polished, durable, and reliable as a traditional flagship display.
