BLU Studio 5.0Ce 1.3GHz Dual Core, Android 4.4 KK, 3.2MP + VGA Camera - Unlocked (White) 5.0" FWVGA Display (480x854): 3.2MP Camera with LED Flash, and VGA front camera, Video recording (720p) 4GB Internal memory with 512 GB RAM with Micro SD Slot up to 32GB MediaTek Dual-Core 1.3GHz Processor with Mali-400 GPU, Android 4.4 Kit Kat GSM-GPRS-EDGE 2G 850/900/1800/2100 3.5mm Audio Jack, FM Radio, MP3 Player, MP4 Player 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. 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.