Foldable iPhone Clues in iOS 27 Beta

Apple's long-rumored foldable iPhone appears closer than ever, with the first developer beta of iOS 27 containing explicit references to foldable display technology. Discovered by developer Sam Henri Gold and confirmed by 9to5Mac, the iOS 27 frameworks include terms such as 'foldState' and 'angleDegrees,' as well as language for the total number of built-in displays on the host device. These indicators strongly suggest that Apple is preparing the operating system for a foldable form factor, rather than a traditional single-screen smartphone.

The references were not present in iOS 26, marking a significant shift. Gold tweeted, 'iOS 27 framework references "foldState" and "angleDegrees" but I'm sure that's nothing,' highlighting the deliberate inclusion of these terms. 9to5Mac verified that the code is new and points to a device that can fold, likely the rumored 'iPhone Fold.'

Additional Evidence from WWDC

Further intrigue came from Apple's developer State of the Union during WWDC 2026. The company announced support for resizing iPhone apps in macOS' mirroring feature and on iPad. While this is useful for iPad and Mac users, it also serves as a prelude to an iPhone with a new, adjustable form factor. The ability to resize apps seamlessly across different screen sizes is essential for a foldable device that transitions between phone and tablet modes.

Apple has not officially confirmed the foldable project, but the evidence is mounting. Last year's experimental iPhone Air, with its ultra-thin design, was seen as a testbed for flexible display technology. Now, with iOS 27 beta code explicitly referencing foldable states, the pieces are falling into place.

Industry Context and Challenges

Apple's entry into the foldable market comes years after competitors like Samsung, Huawei, and Motorola have released multiple generations of foldable devices. Samsung's Galaxy Z Fold series, for instance, has evolved significantly since 2019. However, Apple's approach is expected to be more refined, focusing on durability, software optimization, and ecosystem integration.

Keeping such a project secret has become increasingly difficult. As one observer noted, 'It's hard to hide an item once people know what they're looking for.' The level of detail developers access in beta operating systems makes it nearly impossible to disguise prep work for a new form factor. Moreover, with the anticipated fall 2026 announcement of the iPhone Fold, which would run iOS 27, the timing aligns perfectly.

What to Expect from the iPhone Fold

While specifics remain speculative, industry analysts predict the iPhone Fold will feature a clamshell or book-style design with a seamless hinge, a durable flexible display, and integration with Apple's ecosystem. The 'foldState' and 'angleDegrees' references suggest the device can detect its folding angle, enabling features like split-screen multitasking or a laptop-like mode when partially folded.

Apple's focus on privacy and security will likely extend to the foldable, with secure enclave technology and Face ID integrated into the design. The device may also support Apple Pencil, as hinted by the resizing capabilities announced at WWDC.

Market Implications

The foldable smartphone market is expected to grow significantly in the coming years. Apple's entry could accelerate adoption, much like the iPhone did for smartphones overall. However, high price points and durability concerns remain challenges. Apple's reputation for quality and its loyal customer base could help overcome these hurdles.

For now, the iOS 27 beta provides the strongest evidence yet that Apple's foldable is imminent. Developers and consumers alike are eagerly awaiting the official unveiling, likely at a special event this fall.

This article is based on reporting by Engadget. Read the original article.

Originally published on engadget.com