Android 5.1 Cellphone Unlocked 5.5" Android 5.1 MTK6580 Quad Core Dual Sim Quadband-JUNING GSM/3G Smartphone Gold Unlocked Dual SIM smartphone, with Android 5.1 Lollipop Mediatek 6580 Quad Core 1.3 GHz Processor with arm Mali-400 GPU 5.5 inch IPS QHD(960*540) Screen Dual cameras Front 2.0 MP Back 2.0 MP Dual SIM,RAM:512MB;ROM:4GB G (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.