The iPhone Ultra is No Longer a Myth: iOS 27 Beta Confirms Apple’s Foldable Future

We’ve been hearing whispers about a foldable iPhone for years—long enough that it started to feel like tech industry folklore. But the latest iOS 27 beta just dropped a massive trail of breadcrumbs that’s impossible to ignore. It looks like the “iPhone Ultra” is moving from the lab to the production line.

Software engineers M1Astra and Sam Henri Gold have been digging through the source code, and what they uncovered confirms that Apple isn’t just playing around with prototypes anymore. They’re actively building the software framework for a foldable flagship.

The Smoking Gun in the Code

While Apple hasn’t explicitly written “iPhone Ultra” in the beta strings, the technical references found in the framework tell the real story. The code includes specific terms like foldState, angleDegrees, mechanicalAngleDegrees, and isanglevalid.

These aren’t just random variables. They indicate that iOS 27 is being engineered to recognize exactly how a device is positioned. By tracking the “mechanical angle,” the system can adjust the user interface in real-time depending on whether the phone is fully open, shut, or propped up on a table. It’s the kind of deep hardware-software integration Apple is known for, and it suggests a very polished user experience is on the way.

Flexing New Features

If you’ve seen the “Flex Mode” on high-end Android foldables, you have an idea of what’s coming. Apple appears to be taking that concept and giving it the iOS treatment. Imagine partially folding your device to use it as a mini-laptop, where you can watch a video on the top half while using the bottom half as a control panel or a spacious keyboard.

According to Bloomberg’s reports, certain iOS 27 features already seem tailor-made for this hardware. For example, the new full-screen widgets are designed to occupy the entire display on a standard iPhone, but on the Ultra, they would likely snap perfectly to one-half of the unfolded screen. Similarly, the updated iPhone Mirroring feature—which allows you to cast your phone screen to a Mac—now supports an iPad-sized window, which matches the rumored dimensions of a fully opened iPhone Ultra.

Coming This Fall?

The presence of these code strings in a live beta is usually a sign that the hardware isn’t far behind. All signs point to a major reveal this autumn. If the rumors hold steady, we can expect the iPhone Ultra to make its grand debut alongside the iPhone 18 series this September. Apple has a reputation for waiting until they can “perfect” a category rather than being the first to enter it. If these leaks are any indication, the wait for the foldable iPhone is finally coming to an end, and it might just be the most significant redesign we’ve seen in a decade.