... 4.0 OS,support 3G,WIFI,quadband,dual sim,dual camera Processor: Dual CoreCPU: MTK6575 ARM Cortex-A9 1GHzGPU: PowerVR SGX531 ... (Upgraded to 8.0MP back camera by Inner Program,Max output 3264 x 2448 pixel )Front: 0.3MP front cameraConnectivityConnectivity Technology: GSM & 3G ... 4.0 OS,support 3G,WIFI,quadband,dual sim,dual camera,back camera 5mp,Built in GPS