| Local Name | X520 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | No |
| Announced | 2006, October |
| Status | Discontinued |
| Dimensions | 89 x 42 x 18 mm (3.50 x 1.65 x 0.71 in) |
| Weight | 80 g (2.82 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 65K colors |
| Screen Size | 1.9 inches (~30.4% screen-to-body ratio) |
| Resolution | 128 x 160 pixels (~108 ppi pixel density) |
| Card Slot | No |
| Phone Book | Yes, 1000 entries |
| Call Records | 20 dialed, 20 received, 20 missed calls |
| Internal Memory | 2.8 MB |
| Primary Camera | VGA, 640 x 480 pixels |
| Video | No |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | No |
| GPS | No |
| Infrared Port | Yes |
| Radio | Stereo FM radio |
| USB | Yes |
| Messaging | SMS, EMS, MMS |
| Browser | WAP 1.2/xHTML |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | IrDA for Phonebook contacts only, Predictive text input, Organizer, Voice memo |
| Battery | Li-Ion 750 mAh battery |
| Stand By | Up to 310 h |
| Talk Time | Up to 6 h 20 min |
| Colors | Black, Blue, Red, Green |
| SAR US | 1.36 W/kg (head) 0.24 W/kg (body) |
| SAR EU | 0.85 W/kg (head) |
