| General | |
| Manufacturer: | Sony |
| Model: | Xperia U |
| Other names: | ST25i, Kumquat |
| Year: | 2012 |
| Operating system: | Android 2.3, Android 4.0 |
| Capacity battery (MAh): | 1320 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
54 x 112 x 12 |
| Weight (g): | 110 |
| Processor | |
| Processor Type: | ST Ericsson NovaThor U8500 |
| Clock Frequency (MHz): | 1000 |
| Memory | |
| Random access memory (RAM) (MB): | 512 |
| Read-only memory (ROM) (GB): | 8 |
| Communications | |
| Phone: | GSM 1800, GSM 1900, GSM 850, GSM 900, UMTS 2100, UMTS 900 |
| Bluetooth: | 2.1 |
| Wi-Fi: | 802.11b,g,n |
| Other: | EDGE, GPRS, GPS, HSDPA, HSUPA, UMTS/WCDMA |
| Multimedia | |
| Screen Size: | 3.5 |
| Screen Resolution (px): | 480 x 854 |
| Screen type: | TFT |
| Accelerator: | Mali-400 MP |
| Rear camera (Mp): | 5 |
| Autofocus: | Yes |
| Flash: | Yes |
| Front camera (Mp): | 0.3 |
| Speaker: | mono |
| Output of earphones: | 3.5 |
| Other: | FM-radio, G-Sensor, Light sensor, Proximity sensor, Digital compass |
| Management and input | |
| Touchscreen: | capacitive |
| Buttons: | touch buttons |
| Extension | |
| Connectors: | USB-host, microUSB |
| Additionally | |
| Operation time: (according to the manufacturer) |
of talk time up to 6 hours 36 min/5 hours 36 minutes (2G/3G), of standby time — up to 260/472 hours (2G/3G), mode video — up to 6 hours, mode audio — up to 45 hours |
| Features: | Screen with technology Mobile BRAVIA Engine, technology xLoud and Sony 3D surround sound, camera sensor Sony Exmor R, removable bottom panel (4 included), LED lights transparent strips |