| Local Name | 3100 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 | GSM 850 / 1800 / 1900 - US version |
| GPRS | Class 4 |
| EDGE | No |
| Announced | 2003, 3Q |
| Status | Discontinued |
| Dimensions | 102 x 43 x 15 mm, 69 cc (4.02 x 1.69 x 0.59 in) |
| Weight | 85 g (3.00 oz) |
| SIM | Mini-SIM |
| Display Type | CSTN, 4096 colors |
| Screen Size | 1.5 inches (~16.5% screen-to-body ratio) |
| Resolution | 128 x 128 pixels, 5 lines (~121 ppi pixel density) | Glow-in-the-dark cover - Four-way navigation - Wallpaper and animated screensavers |
| Card Slot | No |
| Phone Book | 256 x 4 fields |
| Call Records | 20 dialed, 20 received, 20 missed calls |
| Internal Memory | 484 KB | MMS, max 45 kB each - Images - Java apps, max 64 kB each |
| Alert Types | Vibration; Downloadable polyphonic, monophonic ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | No |
| GPS | No |
| Radio | No |
| USB | Pop-Port |
| Messaging | SMS, MMS |
| Browser | WAP 1.2.1, xHTML |
| Clock | Yes |
| Alarm | Yes |
| Games | 3 - Beach rally, Snake EX2, Bowling + downloadable |
| Languages | Major European , Africa and APAC languages |
| Java | Yes |
| Features Summary | Predictive text input, Organizer, Profiles, Personal shortcuts |
| Battery | Li-Ion 850 mAh battery (BL-5C) |
| Stand By | Up to 410 h |
| Talk Time | Up to 6 h |
| Colors | 3 - Blue, Red, White |
| SAR US | 1.17 W/kg (head) 1.06 W/kg (body) |
| SAR EU | 0.72 W/kg (head) |