Apple’s first foldable iPhone, widely referred to as the iPhone Ultra, is being linked to a liquid metal hinge, a choice that points to one thing: the company wants its debut foldable to survive real-world abuse, not just look good in a keynote. The device is still in development, but prototypes have already reportedly been sent to carriers around the world for testing ahead of a fall launch.
That timing would put it in the same September window as the iPhone 18 Pro and iPhone 18 Pro Max. For Apple, pairing a new form factor with its regular flagship cycle would be a classic way to keep the spotlight on the entire lineup, while also giving the foldable a little extra credibility before anyone has time to call it fragile.
Why Apple would use a liquid metal hinge
Liquid metal, as described in the leak, has a disordered, non-crystalline atomic structure similar to glass. That makes it highly elastic, able to absorb stress and return to its original shape, which is exactly the sort of material you want in a hinge that will be opened and closed over and over again.
The alleged advantage is durability. The source says the material is stronger than both titanium and stainless steel and is less likely to loosen after hundreds of folds thanks to its smooth surface. Foldables live or die on hinge quality, and this is Apple trying to avoid the creaks, wobble, and ”new phone, old hinge” problem that has dogged plenty of rivals.
What the leak says about the iPhone Ultra
- Device name: iPhone Ultra
- Form factor: Apple’s first foldable smartphone
- Hinge material: liquid metal
- Status: still in development
- Testing: prototypes have reportedly been shipped to carriers globally
- Expected timing: September
Apple has not exactly been rushing to be first here, which is probably the point. Samsung, Huawei, and others have spent years teaching the market that foldables can work, and Apple tends to show up after the lesson is written, then charge premium tuition. If this hinge story is accurate, the company is betting that patience and materials engineering will do more than a flashy first-generation trick.
iPhone Ultra foldable launch timing
A September debut would drop the foldable into Apple’s busiest stage of the year, alongside the iPhone 18 Pro and iPhone 18 Pro Max. That is a tidy bit of product choreography: the mainstream flagships draw the crowds, while the foldable gets to borrow the attention and ride the usual upgrade cycle.
If the prototype testing is far enough along, the bigger question is not whether Apple can build a foldable. It is whether the company can make one that feels unmistakably Apple without inheriting the hinge drama that has made foldables such a love-hate category.