OS:Androory:8GB BeMMCPrinter:external BT printer is accessibleDisplay:4.5 inches LCD,Pixel 854*480Card Readers:Magstrip, IC, NFCCommunications:Bluetooth Wi-Fi 4G GPSSIM Card:1 Standard SIM slot, 25mm*15mmWeight:227gsical:136*69*22.1mmPSAM Card:1 PSAM slot, ISO IEC 7816