Studio 5.0 E Quad Band Unlocked (White) (Discontinued by Manufacturer) GSM 850 / 900 / 1800 / 1900 (SIM 1 & SIM 2) 5" TFT Capacitive Multi-Touchscreen Android v4.2 (Jelly Bean), Dual-Core 1 GHz Cortex-A7 Processor, Mali-400 Graphics 3.2 Megapixel Camera (2048 x 1536 pixels) ) w/ LED flash + Video 720p@30fps Internal Memory: 4GB ROM, 512 MB RAM + microSD Slot Expandable up to 64GB. 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.