iPhone Duo: 11 ways Apple's foldable differs from other iPhones

Apple has launched the iPhone Duo, its first foldable phone, marking the biggest redesign since the original iPhone. The device features a folding design with two screens, starting at $1,999. The Duo includes a 7.6-inch inner display with nano-texture finish, a D-shaped outer screen, and dual batteries. It replaces Face ID with Touch ID in the lock button, adds a hidden under-display camera, and supports the Apple Pencil. The phone lacks a telephoto lens and action button, using only two rear cameras. Its mirrored titanium design resembles the iPhone Air, and battery life reaches 31 hours on the inner display.