| Local Name | Curve 8520 |
| Technology | GSM |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2009, July |
| Status | Available. Released 2009, August |
| Dimensions | 109 x 60 x 13.9 mm (4.29 x 2.36 x 0.55 in) |
| Weight | 106 g (3.74 oz) |
| Keyboard | QWERTY |
| SIM | Mini-SIM |
| Body | Optical trackpad |
| Display Type | TFT, 65K colors |
| Screen Size | 2.46 inches (~28.7% screen-to-body ratio) |
| Resolution | 320 x 240 pixels (~163 ppi pixel density) |
| OS | BlackBerry OS 5.0 |
| CPU | 512 MHz |
| Card Slot | microSD, up to 32 GB |
| Internal Memory | 256 MB |
| Primary Camera | 2 MP, 1600 x 1200 pixels |
| Video | 320p |
| Secondary Camera | No |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| Sound | Dedicated music keys |
| WLAN | Wi-Fi 802.11b/g |
| Bluetooth | v2.0, A2DP |
| GPS | No |
| Radio | No |
| USB | microUSB |
| Messaging | SMS (threaded view), MMS, Email, IM |
| Browser | HTML |
| Java | Yes |
| Features Summary | MP3/eAAC+/WMA/WAV player, MP4/H.264/WMV player, Organizer, Voice memo/dial, Predictive text input |
| Battery | Li-Ion 1150 mAh battery |
| Stand By | Up to 408 h |
| Talk Time | Up to 4 h 30 min |
| Colors | Black |
| SAR US | 1.22 W/kg (head) 0.83 W/kg (body) |
| SAR EU | 1.02 W/kg (head) 0.78 W/kg (body) |
