Apple announced its first foldable iPhone, branded the iPhone Duo, at the September 9, 2026 “Surprise and Shine” event, confirming years of supply-chain reports and ending speculation over delays. The book-style device features a 5.4-inch outer display and 7.6-inch inner screen, A20 Pro chip, titanium frame, and starts at $1,999, with preorders opening October 16 and availability from October 23 alongside iPhone 18 Pro models. New CEO John Ternus positioned it as a premium productivity tool entering a maturing foldable segment led by Samsung. Production ramp-up at Foxconn faces typical early yield constraints, yet Apple targets meaningful share through brand strength and software integration. Traders should watch October shipping volumes and any post-launch durability feedback for resolution signals.