Samsung Doubletime I857 Unlocked Android Dual Screen QWERTY Smartphone - White 2G Network GSM 850 / 900 / 1800 / 1900 & 3G Network HSDPA 850 / 1900 / 2100 3.2-MP camera/camcorder microSD expansion; Bluetooth stereo music; Android 2.2 (Froyo) Up to 6 hours of talk time, up to 240 hours (10 days) of standby time 800 MHz processor; Wireless-N Wi-Fi networking (with optional Wi-Fi Mobile Hotspot and tethering capabilities); GPS navigation Internal 260 MB, 256 MB RAM