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Apple Tests Next-Generation Ultra-Thin Flexible Glass for Foldable iPhone

Apple Tests Next-Generation Ultra-Thin Flexible Glass for Foldable iPhone
source: gettyimages
December 30, 2025

Apple is exploring innovative display technologies for its upcoming foldable iPhone, reportedly testing ultra-thin flexible glass (UFG) to enhance durability and eliminate the visible crease in foldable screens.

According to a Weibo leaker, Digital Chat Station, Apple is evaluating UFG panels with varying thicknesses—using thinner glass in the fold area for greater flexibility, while maintaining thicker, rigid sections elsewhere for sturdiness. This approach aims to distribute bending stress evenly across the display, potentially making the crease virtually invisible during daily use—a significant breakthrough over current foldable displays relying on ultra-thin glass (UTG), which often deform along the hinge.

The ongoing testing phase is part of Apple's efforts to refine manufacturing processes and assess long-term reliability, with a tentative launch slated for 2026 alongside the iPhone 18 Pro models.

While the timeline may seem late in Apple's product development cycle, it likely indicates a transition from design validation to early production validation, securing hardware decisions while final testing of high-risk components such as the flexible glass continues. Apple’s testing of UFG might also serve as a safeguard, with established UTG solutions available as fallback options. Furthermore, multiple Chinese display manufacturers are reportedly evaluating UFG-based solutions, suggesting the technology is nearing commercial viability.

The Foldable iPhone: Features and Expectations

The anticipated foldable iPhone is expected to adopt a book-style design, featuring an approximately 5.3- to 5.5-inch outer display and a 7.8-inch inner screen. To achieve a virtually crease-free display, Apple will reportedly use liquid metal hinges. The device’s high-end specifications and premium features may lead to a retail price ranging from $2,000 to $2,500, making it Apple’s most expensive iPhone yet.

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Conclusion

Apple’s focus on advancing foldable display technology, combined with upcoming device launches and software updates, indicates a year of significant innovation. The rollout of ultra-thin flexible glass may redefine foldable smartphone durability and design, paving the way for a new era of flexible devices.

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Note: The images associated with this article depict flexible display panels, foldable iPhones, and Apple prototypes.

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