Quad core processor. GPU: IMG SGX544. Multi-touch, up to 4 fingers supported. Handwriting recognition. Accelerometer, ambient light sensor, proximity sensor, magnetometer. Music listening time up to 111 hours 47 min. Video playback time up to 12 hours 25 min. Minimum battery capacity: 2330 mAh. 1.2GB of firmware, plus 2.0GB of internal storage. Face detection, AF, LED flash, video stabiliser, touch focus. 3D Surround Sound (VPT). ClearAudio+, Clear bass, Clear Phase, Clear stereo, dynamic normalizer, manual equalizer, PlayNow, TrackID, WALKMAN, xLoud. NeoReader barcode scanner. 3.5 mm audio jack.