It runs Apple’s iOS mobile operating system.
iPhone is a line of smartphones designed and marketed by Apple Inc.
I suggest you try it again, Luke.
Individual GSM, WCDMA, iDEN and some satellite phone devices are uniquely identified by an International Mobile Equipment Identity (IMEI) number.
The most common input mechanism is a keypad, but touch screens are also found in some high-end smartphones.
Caution! May contain Peanuts!