| Local Name | Z520 |
| Additional Information | Z520i - GSM 900/1800/1900 in Europe and Asia Z520a - GSM 850/900/1800/1900 in America |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 - Z520i | GSM 850 / 900 / 1800 / 1900 - Z520a |
| GPRS | Class 10 |
| EDGE | No |
| Announced | 2005, June |
| Status | Discontinued |
| Dimensions | 93 x 46 x 24 mm (3.66 x 1.81 x 0.94 in) |
| Weight | 96 g (3.39 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 65K colors |
| Screen Size | 1.8 inches, 29 x 35 mm (~23.8% screen-to-body ratio) |
| Resolution | 128 x 160 pixels (~114 ppi pixel density) | Second external CSTN display 4096 colors (101 x 80 pixels) - Wallpapers, screensavers |
| Card Slot | No |
| Phone Book | 500 x 8 fields, Photo call |
| Call Records | 30 received, dialed and missed calls |
| Internal Memory | 16 MB |
| Primary Camera | VGA, 640 x 480 pixels |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic, MP3, AAC ringtones, composer |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v2.0 |
| GPS | No |
| Infrared Port | Yes |
| Radio | No |
| USB | Yes |
| Messaging | SMS, EMS, MMS, Email, Instant Messaging |
| Browser | WAP 2.0/xHTML |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3/MP4 player, Photo editor, Exchangeable covers, Organizer, SyncML |
| Battery | Li-Ion 900 mAh battery (BST-37) |
| Stand By | Up to 400 h |
| Talk Time | Up to 9 h |
| Colors | Light Blue, Pale Purple, Pale Pink, Pale Yellow |
| SAR US | 1.47 W/kg (head) 0.70 W/kg (body) |
| SAR EU | 0.96 W/kg (head) |
