Specifications : Model: LenovoA820 Screen size : 4.5Inch IPSCapacitive Touch Screen Resolution : 540*960 OS : Android4.1.2 CPU: MTK6589 Quad Core CPUSpeed Max 1.2GHz GPU: Imagination PowerVR SGX544 Screen: Capacitive Touch Screen,Multi Touch Support RAM: 1GB RAM Memory ROM : 4GB Extended Momery:Support Micro SD memory card(T-Flash card) up to 32GB G-Sensor: Support Light Sensor :Support Distance Sensor : Support GPS :Yes Bluetooth : Yes Wifi : WIFI 802.11b/g/n FM Radio : Yes Adobe Flash :Yes Camera: 1*Back camera:8.0MP with Flashlight SIM card : Dual SIMCard Mobile phone system : WCDMA/GSM Support band 2G:GSM:900/1800/1900MHz 3G:WCDMA:2100MHz Battery: 2000mAh Rechargeable Li-ion Battery