LXLG Unlocked Phones 5.0" Android 5.1 MTK6580 Quad Core ROM 4GB 5.0MP Camera Dual SIM Dual Standby GSM/3G Quadband Cellphones Smartphones WIFI Bluetooth Gold Please open back case to remove the insulating tape on battery before startup! 5.0 inch 540 x 960 qHD Screen OS:Android 5.1 ; CUP:MTK6580 Quad Core 1.3GHz ; GPU:Mali-400MP ; RAM&ROM: 512MB RAM + 4GB ROM Dual Camera:5MP/0.3MP 3G (WCDMA 850/2100) and 2G Quad Band International Version (GSM 850/900/1800/1900) network please buy the GSM/WCDMA SIM card. Do not buy the CDMA SIM card from them.