Walton Primo X4 Pro Operating system: Android 6.0 Marshmallow; Chipset: MediaTek Helio P10 (MT6755); CPU: 4x 2.0 GHz ARM Cortex-A53, 4x 1.2 GHz ARM Cortex-A53, cores: 8; GPU: ARM Mali-T860 MP2, 700 MHz; Sensors: Proximity,Light,Accelerometer,Compass,Gyroscope,Finge...