| Local Name | 6720 classic |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | HSPA 10.2/2 Mbps |
| GPRS | Class 32 |
| EDGE | Class 32, 296 / 178.8 kbits |
| Announced | 2009, February |
| Status | Available. Released 2009, July |
| Dimensions | 110 x 45 x 14 mm (4.33 x 1.77 x 0.55 in) |
| Weight | 110 g (3.88 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 16M colors |
| Screen Size | 2.2 inches (~30.3% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~182 ppi pixel density) |
| OS | Symbian OS, S60 rel. 3.2 |
| CPU | 600 MHz ARM 11 |
| Card Slot | microSD, up to 16 GB, 1 GB included |
| Internal Memory | 50 MB |
| Primary Camera | 5 MP, 2592 х 1944 pixels, Carl Zeiss optics, autofocus, LED flash |
| Video | 480p@15fps |
| Secondary Camera | QVGA videocall camera |
| Alert Types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm Jack | Yes |
| WLAN | No |
| Bluetooth | v2.0, A2DP |
| GPS | Yes, with A-GPS; Nokia Maps 3.0 |
| Radio | Stereo FM radio with RDS |
| USB | microUSB v2.0 |
| Messaging | SMS, MMS, Email |
| Browser | WAP 2.0/xHTML |
| Java | Yes, MIDP 2.1 |
| Features Summary | WMV/RV/MP4/3GP player, MP3/WMA/WAV/RA/AAC/M4A player, Document viewer (Word, Excel, PowerPoint, PDF), TV-out, Voice memo, Predictive text input |
| Battery | Li-Ion 1050 mAh battery (BP-6MT) |
| Stand By | Up to 492 h (2G) / 504 h (3G) |
| Talk Time | Up to 8 h 30 min (2G) / 5 h (3G) |
| Music Play | Up to 27 h |
| Colors | Titanium, Grey, Brown |
| SAR US | 0.96 W/kg (head) 0.53 W/kg (body) |
| SAR EU | 0.69 W/kg (head) |