| Local Name | OT-C635 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 | GSM 850 / 1900 - US version |
| GPRS | Class 10 |
| EDGE | No |
| Announced | 2006 |
| Status | Discontinued |
| Dimensions | 88 x 45 x 21 mm (3.46 x 1.77 x 0.83 in) |
| Weight | 85 g (3.00 oz) |
| SIM | Mini-SIM |
| Display Type | CSTN, 65K colors |
| Screen Size | 1.8 inches (~25.7% screen-to-body ratio) |
| Resolution | 128 x 160 pixels (~114 ppi pixel density) | Embedded images and animations |
| Card Slot | No |
| Phone Book | 500 entries |
| Call Records | 10 dialed, 10 received, 10 missed calls |
| Internal Memory | 4 MB |
| Primary Camera | VGA, 640 x 480 pixels |
| Video | No |
| Secondary Camera | No |
| Alert Types | Vibration; Polyphonic(16) ringtones |
| Loudspeaker | No |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | No |
| GPS | No |
| Radio | No |
| USB | No |
| Messaging | SMS, MMS |
| Browser | WAP 2.0/xHTML |
| Games | 3 embedded |
| Java | Yes, MIDP 2.0 |
| Features Summary | Predictive text input, Organizer |
| Battery | Li-Ion 650 mAh battery |
| Stand By | Up to 320 h |
| Talk Time | Up to 6 h 30 min |
| Colors | Circles Purple, Flowers White, Surf Blue |
| SAR US | 1.34 W/kg (head) 0.60 W/kg (body) |
| SAR EU | 1.00 W/kg (head) |
