Samsung i5800 Galaxy 3 Unlocked Touchscreen Phone with Android OS, Wi-Fi, GPS, 3.1 MP Camera+Video--International Version with Warranty (Black) This unlocked cell phone will work on GSM carries like AT&T and T-Mobile. Not all carrier features may be supported. Unlocked Quad-Band GSM cell phone compatible with 850/900/1800/1900MHz frequencies and 3G HSDPA 900/2100 plus GPRS/EDGE data capabilities. Android OS, v2.1 (Eclair), upgradable to v2.2;3.15 MP camera, 2048x1536 pixels, autofocus and video recording;Wi-Fi 802.11 b/g/n;Stereo FM radio with RDS and GPS Navigation. Bluetooth v3.0 with A2DP;TFT capacitive touchscreen;Document editor (Word, Excel, PowerPoint, PDF);Google Search, Maps, Gmail, YouTube, Calendar, Google Talk integration and microSD slot up to 32GB. Talk time up to 15 hours - Standby up to 620 hs. This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones. Please contact the seller for specific warranty information.