Apple to unveil iPhone 5S, 5C smartphones

Apple will launch two new iPhones on September 20: a low-cost 5C starting at $99 and a higher-end 5S that features a Touch ID fingerprint sensor.

The devices were revealed during a special event at the company's headquarters in Cupertino, Calif.

The 5C will be available in five colors -- white, pink, yellow, blue and green -- and boasts many of the same features as the iPhone 5.

The 5S will receive upgrades to the camera, a faster A7 processor with M7 coprocessor, and the option to unlock your phone or make iTunes purchases with a fingerprint identity sensor.