| 2G Network | GSM 900 / 1800 / 1900 |
| | GSM 850 / 1800 / 1900 - Sony Ericsson T637 |
| Announced | 2003, 4Q |
| Status | Discontinued |
| Dimensions | 102 x 43 x 17 mm |
| Weight | 92 g |
| Type | TFT, 65K colors |
| Size | 128 x 160 pixels, 1.78 inches (~115 ppi pixel density) |
| | - Wallpapers, screensavers |
| Alert types | Vibration; Downloadable polyphonic ringtones, composer |
| Loudspeaker | No |
| 3.5mm jack | No |
| Card slot | No |
| Phonebook | 8 fields, 510 items, Photo call |
| Call records | 30 received, dialed and missed calls |
| Internal | 2 MB |
| | - 300 organizer entries |
| GPRS | Class 8 (4+1 slots), 32 - 40 kbps |
| EDGE | No |
| Speed | No |
| WLAN | No |
| Bluetooth | Yes, v1.0b |
| Infrared port | Yes |
| USB | Yes |
| Primary | CIF, 352 x 288 pixels |
| Video | No |
| Secondary | No |
| Messaging | SMS, EMS, MMS, Email, Instant Messaging |
| Browser | WAP 2.0/xHTML |
| Radio | No |
| Games | Embedded (AlienScum, HoneyCave2, Minigolf, Vrally2) + downloadable |
| GPS | No |
| Java | Yes |
| Colors | Frosty Silver, Black |
| | - Predictive text input
- Organizer
- Voice memo |
| | Standard battery, Li-Po 750 mAh |
| Stand-by | Up to 315 h |
| Talk time | Up to 14 h |
| SAR US | 1.18 W/kg (head) 0.75 W/kg (body) |
| SAR EU | 0.73 W/kg (head) |
