Blackberry Torch 9810 Unlocked GSM HSPA+ OS 7.0 Slider Phone - Zinc Grey 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 smartphone with 3.2-inch touchscreen, slide-down QWERTY keyboard, and BlackBerry 7 OS 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; 8 GB memory; microSD expansion; HTML5 web browser Up to 6.5 hours of talk time, up to 300 hours (12.8 days) of standby time; released in August, 2011 Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.