The first-generation i Phone was released on June 29, 2007, and multiple new hardware iterations with new i OS releases have been released since.
The user interface is built around the device's multi-touch screen, including a virtual keyboard.
Apple rejected the "design by committee" approach that had yielded the Motorola ROKR E1, a largely unsuccessful collaboration with Motorola.
Among other deficiencies, the ROKR E1's firmware limited storage to only 100 i Tunes songs to avoid competing with Apple's i Pod nano.
In 2013, Apple released the 5S with improved hardware and a fingerprint reader, and the lower-cost 5C, a version of the 5 with colored plastic casings instead of metal.