Motorola Moto X (2nd Generation) - Black Leather - 16 GB (U.S. Warranty) Unlocked Phone 5.2 inches Full HD AMOLED Corning Gorilla Glass 3 Touch Screen Display 13MP Quick Capture Camera, Auto Focus, 4X Digital Zoom, Ring flash with dual LEDs, 1080p HD video (30 fps), Slow motion video and 4K UHD capture. (Camera aperature f2.25) Music/Audio Formats Supported: AAC, AAC+, Enhanced AAC+, AMR-NB, AMR-WB, MIDI, MP3, PCM/WAVE, FLAC, Vorbis Memory: 16GB on board memory + 2GB RAM Network/Bands: GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz), UMTS/HSPA+ (850, 900, 1700 (AWS), 1900, 2100 MHz), 4G LTE (2, 3, 4, 5, 7, 17) 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.