Capacitive touchscreen (multi-touch). Scratch resistant multi touch screen with wet finger tracking (Dragontrail Glass). All the applications for your active life, including on-screen heart rate monitoring. Reality Display with Mobile BRAVIA Engine. Wet finger tracking. Barometer and Compass. 2GB memory card in the box. Auto focus, face and smile detection & recognition, LED flash, geo tagging, image stabiliser, touch capture, touch focus. PlayNow, Sony Ericsson Music Player, TrackID, xLOUD. NeoReader barcode scanner. Torch functionality. 3.5 mm audio jack. Music listening time: up to 25 hrs; video playback time: up to 8 hrs 30 min. Internal phone storage: 1GB (up to 320 MB of user accessible memory), 512 MB RAM. Accelerometr, proximity and pressure sensors, ambient light sensor, magnetometer. Networks: ST17i - UMTS HSPA 900 (Band VIII), 2100 (Band I); GSM GPRS/EDGE 850, 900, 1800, 1900. ST17a - UMTS HSPA 800 (Band V), 1900 (Band II), 2100 (Band I); GSM GPRS/EDGE 850, 900, 1800, 1900. Possible upgrade to Android 4.0.