Huawei G520 Dual Sim Quad-Core MT6589 1.2GHz 4.5 inch IPS Android 4.1 GPS WCDMA Smartphone Huawei G520 Dual Sim Quad-Core MT6589 1.2GHz 4.5 inch IPS Android 4.1 GPS WCDMA Smartphone Android 4.1; Unlocked Dual Sim Card /Dual card Standby Qualcomm Snapdragon MSM8225Q Quad Core 1.2GHZ RAM 512MB +ROM 4GB 4.5 inch IPS capacitive touch screen 854x480 pixels Dual Cameras,front camera:0.3MP,back camera: 5.0 MP Unlocked cell phones are compatible with GSM carriers but are not compatible with CDMA Carriers.