... MTK 4th-generation high-speed smart chip, MT6577-1GHZ Dual-core system,5.0"WVGA screen,480*800 ... Product show:Features:MTK fourth-generation high-speed smart chip, ... MT6577-1GHZ Dual-core system,5.0"WVGA screen,480 x ... .0.4 OS GPS+AGPS global positioning navigation system 3G,WIFI 802.11b/g support,EDGE,HSDPA, ...