Curve 8520
| 2G Network | GSM 850 / 900 / 1800 / 1900 |
| Speakerphone | Yes / Dedicated music keys |
| Card slot | microSD (TransFlash) up to 16GB |
| Infrared Port | No |
| USB | Yes, microUSB |
| GPS | Yes, with A-GPS support |
| OS | BlackBerry OS |
| 3G | No |
| Form Factor | Candybar |
| HSCSD | Yes |
| GPRS | Yes |
| EDGE | Yes |
| WLAN | Yes |
| Wireless Internet Technology | GPRS |
| Height (mm) | 109 |
| Width (mm) | 60 |
| Depth (mm) | 13.9 |
| Weight (g) | 106 g |
| Battery | Standard battery, Li-Ion 1150 mAh |
| Standbytime (h) | Up to 408 h |
| Talktime (m) | Up to 4 h 30 min |
| IrDA | No |
| SMS | Yes |
| Yes | |
| MMS | Yes |
| Bluetooth | Yes |
| Java | Yes |
| Radio | No |
| Camera | Yes |
| Camera resolution | 2 MP, 1600x1200 pixels |
| Colour display | Yes |
| Number of colours | 65000 |
| Video recording | Yes |
| Memory | Internal - 256 MB |
| Ringtones | Vibration; Downloadable polyphonic, MP3 ringtones |
| Polyphonic | Yes |
| MP3 | Yes |
| Games | Yes |
| Voicedialing | Yes |
| Display width (pixel) | 320 |
| Display height (pixel) | 240 |
| LCD Size (pixel) | 320 x 240 |
| Vibrate | Yes |
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