Apple Tests iPhone Duo 2 Prototype With Under-Display Face ID and Action Button

Apple is reportedly testing prototypes of its next foldable iPhone, the iPhone Duo 2, with Face ID built into the outer display, according to Bloomberg's Mark Gurman. The device may also add a customizable Action button and a telephoto camera, features absent from the current model. The current iPhone Duo uses a Touch ID sensor on its side button, and integrating Face ID would require shrinking components like the dot projector and infrared camera. Gurman also suggested future generations could feature a larger inner display, potentially between 8.5 and 9 inches, up from the current 7.6-inch screen. These upgrades may be spread across the second and third generations rather than all arriving with the iPhone Duo 2. Apple has not confirmed any details, so the reported changes remain speculative until official announcements.