| Local Name | U8100 |
| Technology | GSM / UMTS |
| 3G Bands | UMTS 2100 |
| 2G Bands | GSM 900 / 1800 |
| Speed | Yes, 384 kbps |
| GPRS | Class 10 |
| EDGE | No |
| Announced | 2003, 3Q |
| Status | Discontinued |
| Dimensions | 96 x 50 x 22 mm (3.78 x 1.97 x 0.87 in) |
| Weight | 120 g (4.23 oz) |
| SIM | Mini-SIM |
| Display Type | TFD, 64K colors |
| Resolution | 176 x 220 pixels, 7 lines | Second external display, 64x96 pixels - Four way navigation keys - Wallpapers |
| Card Slot | No |
| Phone Book | 500 entries, 7 contact groups |
| Call Records | 20 dialed, received and missed calls |
| Internal Memory | 64 MB | 10 voice dial numbers - 20 sec voice memo |
| Primary Camera | VGA, 640 x 480 pixels |
| Camera Features | Video-calling |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic ringtones |
| Loudspeaker | No |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | No |
| GPS | No |
| Infrared Port | Yes |
| Radio | No |
| USB | Yes |
| Messaging | SMS, EMS, MMS |
| Browser | WAP 2.0/xHTML |
| Clock | Yes |
| Alarm | Yes |
| Games | Yes |
| Java | Yes |
| Features Summary | Predictive text input, MP3 player, Voice memo, Voice dial, Organizer |
| Battery | Li-Po 1050 mAh battery |
| Stand By | Up to 200 h |
| Talk Time | Up to 2 h |