Apple engineered iOS 7 to take full advantage of the advanced 64-bit technologies in iPhone 5s, including the native 64-bit kernel, libraries and drivers. All the built-in apps have been re-engineered for 64-bit, and iOS 7 provides a seamless developer transition with Xcode support and the ability to run both 32-bit and 64-bit apps. iOS 7 also provides deep integration with the new Touch ID sensor and takes full advantage of the new iSight camera sensor to enable new features like automatic image stabilization, Burst Mode and Slo-Mo video with 120 fps. Combined with the new Camera App in iOS 7, iPhone 5s provides up to two-times faster auto-focus, faster photo capture and better dynamic range. iOS 7 is designed to complement the gorgeous exteriors of iPhone 5c, with matching wallpapers and translucency that carry the color through the entire experience.
Additional new iOS 7 features include a new Find My iPhone Activation Lock, that requires your Apple ID and password before you can turn off Find My iPhone, erase data or re-activate a device after it’s been remotely erased; FaceTime audio for high quality calls over a data network; and new ringtones, alarms, alerts and system sounds.