| Local Name | 6820 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 | GSM 850 / 1800 / 1900 - US version |
| GPRS | Class 10 |
| EDGE | Yes, 118.4 kbps |
| Announced | 4Q, 2003 |
| Status | Discontinued |
| Dimensions | 107 x 47 x 20 mm, 79 cc (4.21 x 1.85 x 0.79 in) |
| Weight | 100 g (3.53 oz) |
| Keyboard | QWERTY |
| SIM | Mini-SIM |
| Display Type | CSTN, 4096 colors |
| Screen Size | 1.6 inches (~16.4% screen-to-body ratio) |
| Resolution | 128 x 128 pixels, 8 lines (~113 ppi pixel density) | 5-way joystick |
| Card Slot | No |
| Phone Book | 1000 x 10 fields, Photo call |
| Call Records | 20 dialed, 20 received, 20 missed calls |
| Internal Memory | 3.5 MB | 10 voice dial numbers |
| Primary Camera | CIF, 352 x 288 pixels |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic, monophonic ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v1.1 |
| GPS | No |
| Infrared Port | Yes |
| Radio | No |
| Messaging | SMS, MMS, Email, Instant Messaging |
| Browser | WAP 2.0/xHTML |
| Games | 5 - Backgammon, Bounce, Bowling, Chess Puzzle, Water Rapid + downloadable |
| Languages | Major European and Asia-Pacific languages |
| Java | Yes |
| Features Summary | Predictive text input, Organizer, Voice dial/memo |
| Battery | Li-Ion 850 mAh battery (BL-5C) |
| Stand By | Up to 240 h |
| Talk Time | Up to 7 h |
| SAR US | 0.52 W/kg (head) |
| SAR EU | 0.78 W/kg (head) 0.87 W/kg (body) |
