This unlocked cell phone is compatible with GSM carriers like AT&T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. * 4G-enabled professional mobile messenger with BlackBerry 7 OS, 3.7-inch touchscreen, 1.2 GHz processor, and Liquid Graphics technology * Wireless-N Wi-Fi networking; GPS for navigation and location services * 5-MP camera with HD 720p video capture; Bluetooth stereo music; 4 GB memory; HTML5 web browser * Up to 6.8 hours of talk time, up to 333 hours (13.9 days) of standby time; released in November, 2011