Size 144.6 x 69.7 x 9.61 mm Sensors Ambient light sensor, Proximity sensor, Accelerometer, Compass sensor, Gyro sensor, Magnetic sensor, Sensor Hub Sound HTC BoomSound™ with Dolby Audio™ Additional Features Dual-tone metal unibody, Themes, HTC Sense™ Home, One Gallery, >Photo Editor Platform Android™ with HTC Sense™ Connectivity NFC, Bluetooth® 4.1, Wi-Fi®: 802.11 a/b/g/n/ac (2.4 & 5 GHz), DLNA®, HDMI MHL 3.0, CIR, 3.5 mm stereo audio jack, micro-USB 2.0 (5-pin) port Weight 157g CPU Speed Qualcomm® Snapdragon™ 810, octa core 64-bit, 4 x 2.0GHz + 4 x 1.5GHz Memory1 Camera Main camera: 20MP with sapphire cover lens, auto-focus, BSI sensor, f/2.2, 27.8mm lens, 4K video recordingFront camera: HTC UltraPixel™, BSI sensor, f/2.0, 26.8mm lens, 1080p video recording SIM card Type nano SIM Multimedia Playback: .aac, .amr, .ogg, .m4a, .mid, .mp3, .wav, .wma, .flac, ac3, ec3, eac3Recording: .aacVideo supported formats: Playback: .3gp, .3g2, .mp4, .wmv, .avi, .mkv Recording: .mp4 Memory ROM: 32GB / RAM: 3GBExtended memory: microSD™ up to 2TB Available storage is less due to phone software. Approximately 21 GB storage available for user content. Available storage is subject to change based on phone software updates and apps usage. Network2 2G/2.5G - GSM/GPRS/EDGE: 850/900/1800/1900 MHz3G UMTS: 850/900/1900/2100 MHz4G LTE: FDD: Bands 1,3,5,7,8,20,28 TDD: Bands 38, 40, 41 Network bands in regions may be different, depending on the mobile operator and your location. 4G LTE only available in select countries. Upload and download speeds also depend on the mobile operator. Battery Capacity: 2840 mAhTalk time: Up to 25.4 hours for 2G/ 21.7 hours for 3GStandby time: Up to 391 hours for 2G/ 402 hours for 3G Battery times (talk time, standby time and more) are subject to network and phone usage. A Standby time specification ("specification") is an industry standard that is only intended to allow comparison of different mobile devices under the same circumstances. Power consumption in a standby state is strongly dependent on factors including but not limited to network, settings, location, movement, signal strength and mobile traffic. Comparisons of different mobile devices using such a specification can therefore only be done in a controlled laboratory environment. When using any mobile device in real life circumstances for which the mobile device is intended, the standby time could be considerably lower and will be strongly dependent on the factors mentioned above.