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. GSM Quad Band: GSM 850 / 900 / 1800 / 1900; 3G: HSDPA 850 / 2100 / 1800 Android OS, v2.3.3 (Gingerbread); TFT capacitive touchscreen 3.15 MP, 2048x1536 pixels with Geo-tagging; GPS with A-GPS support; FM radio Wi-Fi 802.11 b/g/n, Wi-Fi hotspot; Bluetooth v2.1 with A2DP; microSD card slot up to 32 GB