Apple iPhone 4S 16GB Unlocked GSM World Smartphone w/ Siri and iCloud - White 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 900 / 1700 / 1900 / 2100 3.5" LED-backlit IPS LCDMulti-Touchscreen w/ Protective Corning Gorilla Glass, oleophobic coating Pre-installed with iOS 6 (upgradable), Dual-Core 1 GHz Cortex-A9 Processor, Chipset: Apple A5, PowerVR SGX543MP2 Graphics 8 Megapixel Camera (3264 x 2448 pixels) w/ Autofocus, LED Flash + Front-Facing VGA Camera Internal Memory: 16GB storage, 512 MB RAM