Samsung Galaxy S4 GT-I9502 16GB 13MP 5" Dual SIM Active Android Unlocked (Black) Samsung Galaxy S4 GT-I9502 16GB 13MP 5" Dual SIM Active Android Unlocked CPU & GPU:Quad-core 1.6 GHz Cortex-A15 & quad-core 1.2 GHz Cortex-A7, PowerVR SGX544 Memory: RAM 2GB , ROM 16GB Screen: 5.0 inches (~441 ppi 1080 x 1920 pixel), 13 MP/ Auto Focus , LED flash Network: WCDMA /GSM ,Android OS, v4.2.2 (Jelly Bean), battery 2600 mAh