High Quality Content by WIKIPEDIA articles! The iPhone 5 is a touchscreen-based smartphone developed by Apple. It is the sixth generation of the iPhone and succeeds the iPhone 4S. The phone is a slimmer, lighter model that introduces a higher-resolution, 4-inch screen to the series with 16:9 widescreen aspect ratio support. The phone also includes a custom-designed ARMv7 processor called the Apple A6, an update to Apple`s mobile operating system known as iOS 6, and support for LTE.