Samsung GT-I9100 Galaxy S II Unlocked 3G GSM Phone with Android, 8MP Camera, 4.3-Inch Touchsreen, Bluetooth, GPS and Wi-Fi - No Warranty - Black This Unlocked Cell Phone is compatible with GSM carriers like AT&T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. Unlocked Quad-Band GSM Cell Phone compatible with 2G Network 850/900/1800/1900 MHz frequencies and 3G Network HSDPA 850/900/1900/2100 MHz frequencies plus GPRS/EDGE data capabilities. 4.3-Inch Super AMOLED Plus Capacitive Touchscreen; 8MP Camera with LED Flash; 2MP Secondary Camera; GPS; Bluetooth; Google Search, Maps, Gmail, YouTube, Google Talk, Picasa integration; Document editor (Word, Excel, PowerPoint, PDF) and Image/Video editor. Android OS, v2.3 (Gingerbread); Dual-core 1.2 GHz Cortex-A9 CPU; Mali-400MP GPU; Accelerometer, gyro, proximity, compass Sensors; Browser: HTML, Adobe Flash; Active noise cancellation with dedicated mic; TV-out (via MHL A/V link); MP3 and MP4 Player. Talk time up to 18 h 20 min (2G)/Up to 8 h 40 min (3G) - Standby up to 710 h (2G)/Up to 610 h (3G); Phone Memory: 16GB