... :1 PCS Product positioningFeatures:MTK fifth-generation extreme-speed smart chip,MT6589-1.2GHZ Four-core system,5.5" HD(1280 ... .2.1 OS,WCDMA/GSM,four-bands,Mobile AP,wifi,GPS+AGPS,Light sensor,Gravity Sensor,Proximity sensor,Digital compass,8MP ... sim cards dual standby(Single card optional)Navigation:Built-in GPS chip(GPS+AGPS)Display:5.5" HD IPS display screen, 1600K colorDisplay ...