Stay connected even on the go with the iPhone 3G in black. Enjoy movies, videos and exciting games with the 3.5-inch extremely responsive multitouch display of this Apple smartphone. Boasting a 2-megapixel resolution camera, it lets you capture life's greatest moments. This smartphone utilizes a 256 MB of RAM with an internal storage capacity of 16 GB. Featuring an attractive design, the device is powered by the iOS operating system. This device utilizes Wi-Fi, Bluetooth and USB 2.0 and in addition, its Li-ion battery is non-removable. This device is locked to metroPCS and compatible with Cricket, AT&T, Straight Talk, U.S. Cellular, Boost Mobile, Sprint, Verizon, TracFone, Xfinity, T-Mobile, Virgin Mobile Carriers.