A 4.7-inch Retina HD display with 3D Touch. 7000 Series aluminium and stronger cover glass. An A9 chip with 64-bit desktop-class architecture. All-new 12-megapixel iSight camera with Live Photos. Touch ID. Faster 4G LTE and Wi-Fi. A long battery life.2 And iOS 9 and iCloud. All in a smooth, continuous unibody design.