| Local Name | 3120 classic |
| Technology | GSM / UMTS |
| 3G Bands | UMTS 850 / 2100 | UMTS 850 / 1900 - American version |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | Yes, 384 kbps |
| GPRS | Class 32 |
| EDGE | Class 32 |
| Announced | 2008, February. Released 2008, April |
| Status | Discontinued |
| Dimensions | 111 x 45 x 13 mm, 60 cc (4.37 x 1.77 x 0.51 in) |
| Weight | 85 g (3.00 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 16M colors |
| Screen Size | 2.0 inches (~24.8% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~200 ppi pixel density) |
| Card Slot | microSD, up to 8 GB |
| Phone Book | Yes, 2000 entries |
| Call Records | 20 dialed, 20 received, 20 missed calls |
| Internal Memory | 24 MB |
| Primary Camera | 2 MP, 1600 x 1200 pixels, LED flash |
| Video | 480p (newest firmware only) |
| Secondary Camera | VGA videocall camera |
| Alert Types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v2.0 |
| GPS | No |
| Radio | Stereo FM radio; Visual radio |
| USB | microUSB v2.0 |
| Messaging | SMS, MMS 1.2, Email, Push Email, IM |
| Browser | WAP 2.0/xHTML, HTML |
| Games | Yes |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3/MP4/AAC/AAC+/eAAC+ player, Organizer, Voice memo, Predictive text input |
| Battery | Li-Ion 1000 mAh battery (BL-4U) |
| Stand By | Up to 290 h (2G) / 288 h (3G) |
| Talk Time | Up to 3 h 30 min (2G) / 2 h 45 min (3G) |
| Colors | Graphite, Plum/Powder White, Deep Red, Chestnut Brown |
| SAR US | 1.18 W/kg (head) 1.11 W/kg (body) |
| SAR EU | 0.69 W/kg (head) |