| Local Name | Lumia 520 |
| Additional Information | Versions: Nokia Lumia 521 RM-917 (T-Mobile) |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 900 / 2100 - RM-914 | HSDPA 850 / 1900 / 2100 - RM-915 | HSDPA 850 / 1700 / 1900 / 2100 - RM-917 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - all versions |
| Speed | HSPA 21.1/5.76 Mbps |
| GPRS | Class B |
| EDGE | Up to 236.8 kbps |
| Announced | 2013, February |
| Status | Available. Released 2013, April |
| Dimensions | 119.9 x 64 x 9.9 mm, 75.7 cc (4.72 x 2.52 x 0.39 in) |
| Weight | 124 g (4.37 oz) |
| SIM | Micro-SIM |
| Display Type | IPS LCD capacitive touchscreen, 16M colors |
| Screen Size | 4.0 inches, 45.5 cm2 (~59.3% screen-to-body ratio) |
| Resolution | 480 x 800 pixels, 5:3 ratio (~233 ppi density) |
| Mulitouch | Yes |
| Protection | Scratch-resistant glass |
| OS | Microsoft Windows Phone 8, upgradeable to 8.1 |
| Chipset | Qualcomm MSM8227 |
| CPU | Dual-core 1.0 GHz |
| GPU | Adreno 305 |
| Card Slot | microSD, up to 64 GB (dedicated slot) |
| Internal Memory | 8 GB, 512 MB RAM |
| Primary Camera | 5 MP (f/2.4, 28mm, 1/4"), autofocus |
| Camera Features | Geo-tagging |
| Video | 720p@30fps |
| Secondary Camera | No |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| Sound | Active noise cancellation with dedicated mic |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot |
| Bluetooth | 4.0, A2DP, LE/ aptX after WP8 Denim update |
| GPS | Yes, with A-GPS, GLONASS |
| Radio | FM Radio |
| USB | microUSB 2.0 |
| Sensors | Accelerometer, proximity |
| Messaging | SMS (threaded view), MMS, Email, Push Email, IM |
| Browser | HTML5 |
| Java | No |
| Features Summary | MP3/WAV/eAAC+/WMA player, MP4/H.264/WMV player, OneDrive (15 GB cloud storage), Document viewer, Video/photo editor |
| Battery | Removable Li-Ion 1430 mAh battery (BL-5J) |
| Stand By | Up to 360 h (3G) |
| Talk Time | Up to 14 h 40 min (2G) / Up to 9 h 40 min (3G) |
| Music Play | Up to 61 h |
| Colors | Yellow, red, cyan, white/black |
| SAR EU | 1.09 W/kg (head) |