... *2448 original mobile phone i9100 S21.4.3 inch ,3G2.CPU Dual-core 1.2 GHz Cortex-A9 ,8MP camera General2G NetworkGSM ... FeaturesOSAndroid OS, v2.3.4 (Gingerbread), upgradable to v4.xChipsetExynosCPUDual-core 1.2 GHz Cortex-A9GPUMali-400MPSensorsAccelerometer, gyro, proximity, compassMessagingSMS(threaded ...