Why the iPhone Ultra Fold is Apple’s Most Difficult Project Yet

Apple is reportedly developing its first book-style foldable iPhone, possibly called the iPhone Ultra Fold, for a late-2026 launch.

The device is expected to feature premium components like an A20 Pro chip, a C2 modem, and iOS 27, signaling Apple’s high-end ambitions.

But testing has reportedly exposed two major issues: a rattling hinge and a visible screen crease.

Those problems could delay the launch or weaken Apple’s premium positioning in the competitive foldable market, where Samsung is already established.