| Local Name | N721 |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 850 / 2100 |
| 2G Bands | GSM 900 / 1800 |
| Speed | HSPA 7.2/0.384 Mbps |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2011 |
| Status | Available |
| Dimensions | 106 x 56.2 x 14.2 mm (4.17 x 2.21 x 0.56 in) |
| Weight | 105 g (3.70 oz) |
| SIM | Mini-SIM |
| Display Type | TFT touchscreen, 56K colors |
| Screen Size | 2.8 inches (~40.8% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~143 ppi pixel density) |
| OS | Android OS |
| Card Slot | microSD, up to 32 GB |
| Internal Memory | 150 MB |
| Primary Camera | 2 MP, 1600 x 1200 pixels |
| Camera Features | Geo-tagging |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g |
| Bluetooth | Yes |
| GPS | Yes, with A-GPS |
| USB | microUSB v2.0 |
| Sensors | Accelerometer |
| Messaging | SMS(threaded view), MMS, Email, IM |
| Browser | WAP 2.0/xHTML, HTML |
| Java | Yes, via Java MIDP emulator |
| Features Summary | MP4/H.264 player, MP3/WAV/eAAC+ player, Organizer, Voice memo, Predictive text input |
| Battery | Li-Ion 1100 mAh battery |
| Stand By | Up to 250 h |
| Talk Time | Up to 4 h 10 min |
| Colors | Black |
| SAR EU | 0.73 W/kg (head) |
