... -A9 Dual-core 1.2GHz 3. Android OS, v4.1 N9550/N7100 smart phone 5.3 Inch Capacity Screen mtk6577 dual core 1.0GHz android 4.1 1,One SIM CARD ... Dual-core system,3,Equipped with the Android 4.1.1 OS,WCDMA/GSM,four-bands , 4, 5.3"QHD screen,480 x 854 pixels,5,Mobile ... +AGPS,Light sensor,Gravity Sensor,Proximity sensor,Digital compass,6,Cmera:5MP AF+1.3MP front camera,flash light, 9.4mm thin ...