| General | |
| Manufacturer: | Sony Ericsson |
| Model: | WT18i Walkman |
| Year: | 2011 |
| Operating system: | OPhone 2.5 |
| Capacity battery (MAh): | 1200 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
56.5 x 106 x 14.3 |
| Weight (g): | 110 |
| Processor | |
| Processor Type: | Marvell PXA920 |
| Clock Frequency (MHz): | 806 |
| Memory | |
| Read-only memory (ROM) (MB): | 512 |
| Communications | |
| Phone: | GSM 1800, GSM 1900, GSM 850, GSM 900, TD-SCDMA 2010, TD-SCDMA 2025, UMTS 900 |
| Bluetooth: | 2.1 |
| Wi-Fi: | 802.11b,g |
| Other: | EDGE, GPRS, GPS, TD-HSDPA, TD-HSUPA, UMTS/WCDMA |
| Multimedia | |
| Screen Size: | 3.2 |
| Screen Resolution (px): | 320 x 480 |
| Screen type: | TFT |
| Rear camera (Mp): | 3 |
| Autofocus: | Yes |
| 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, physical buttons |
| Extension | |
| Memory Cards: | microSD, microSDHC |
| Connectors: | microUSB |
| Additionally |