Sony Ericsson ST17a-BKW Xperia Active Android Unlocked Smartphone with 5MP Camera, Touchscreen, WiFi, GPS - US Warranty - Black/White Internal phone storage: 1GB (up to 320MB free). RAM: 512MB. Memory card slot: microSD, up to 32GB. Platform: Android 2.3. Screen: 320 x 480 Pixels / 16,777,216 color TFT LCD 3 Inches display GSM/GPRS/EDGE 850/900/1800/1900. UMTS/HSPA 900/2100 Water and dust resistant. Durable mineral glass screen with wet finger tracking. HD video and Reality Display with Mobile BRAVIA Engine. Camera - 5 megapixel. Radio - FM radio with RDS. 3.5 mm audio jack. Micro USB support. Bluetooth with A2DP. aGPS. WiFi. Document readers Talk Time: up to 4 hours 53 min, Standby: 351 hours on GSM. Talk Time: up to 5 hours 31 min, Standby: 335 hours on UMTS/HSPA. Music Listening time: 25 hours