... 4GB RAM: 512MBOSAndroid OS, v 4.1.1 MS modeWCDMA/GSMFrequency BandWCDMA 2100/850 (HSDPA) and GSM 850/900/1800/1900SIM CardDual SIM cards, Dual ... EDGE, HSDPA, HSUPAModem FeaturesWireless AP ( Mobile AP )HSUPASupport, up to 5.76 MbpsHSDPASupport, up to 7.2 MbpsLight ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Popular 4.7 inch QHD MTK6577 Smart phone,512MB+1GB,Android 4.1.1