Basic parameters rnrnrnMobile phone type: 4G mobile phone, 3G mobile phone, smart phone, music mobile phone, camera phone.rnOperating system: iOS 12rnrnscreenrnTouch screen type: capacitor screen, multi touch controlrnMain screen size: 5.5 inchesrnMain screen resolution: 1920x1080 pixelsrnScreen technology: 3D Touch TechnologyrnrnHardwarernCPU model: Apple A9+M9 coprocessorrnCPU frequency: 1.8GHzrnCore number: Dual CorernRAM capacity: 2GBrnROM capacity: 16GB/64GB/128GBrnBattery type: non detachable batteryrnBattery capacity: 2750mAhrnEndurance time: theoretical call time: 1440 minutesrnTheoretical standby time: 384 hoursrnInternet usage: 12 hours (3G), 12 hours (4G), 12 hours (wireless)rnHD video playback: 14 hoursrnAudio playback: 80 hoursrnrnSIM card type: single card, Nano SIM cardrnWLAN functions: dual frequency WIFI, IEEE 802.11 a/b/g/n/acrnrnCamerarnThe number of cameras: double cameras (front and back)rnRear camera: 12 million pixelsrnFront camera: 5 million pixelsrnSensor type: backlit /BSI CMOSrnFlash: True Tone flashrnAperture: post f/2.2, pre f/2.2rnCamera features: five lens, sapphire crystal lens surface.