Apple announced its first foldable iPhone, internally known as the iPhone Duo or Ultra, on September 9, 2026, confirming a book-style design with roughly 5.5-inch outer and 7.8-inch inner displays. The device is slated for preorders starting October 16 and general availability on October 23 at a starting price near $2,000. This follows years of supply-chain reports on hinge durability, crease reduction, and component costs that had kept launch timing uncertain. Rivals like Samsung have refined similar hardware since 2019, pressuring Apple to enter the premium foldable segment while expanding its iPhone lineup. Traders now weigh confirmed production volumes around 6–10 million units and any last-minute delays against the firm October ship date as the key resolution catalyst.