Nokia Lumia 900 Black Factory Unlocked 4.3" AMOLED ClearBlack glass touchscreen, one-piece polycarbonate body, excellent antenna performance. Carl Zeiss optics, 8 MP main camera, dual LED flash, Auto Focus, 1 MP front camera, video calling. All day battery life, up to 7 hours talk time. Facebook, Twitter, LinkedIn, email, Chat, and SMS. 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.