... : PowerVR SGX 544ROM: 4GBRAM: 1GB Battery: 1800mAh Li-ion Capacitive touch (5-point) screen, Retina, IPS Network frequency: GSM 850/900 ... mmProduct weight: 160 gPackage weight: 0.5 kgAdditional FeaturesWi-Fi, 3G, GPS, FM, Bluetooth, Browser, MP3, MP4, MMS, Alarm, Calendar, ... custom ROMs, rooting or flashing the Android device with other firmware will automatically void the device's warranty.