Phone Comparison - Nokia Lumia 520 vs BLU Studio 6.0 HD vs Nokia Lumia 830
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| Manufacturer | Nokia | BLU | Nokia |
| Announced | February 2013 | April 2014 | September 2014 |
| Status | Available - April 2013 | Available - April 2014 | Available - September 2014 |
| Colors | Yellow, red, cyan, white/black | Black, White | Orange, green, white, black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
119.9 x 64 x 9.9 mm (4.72 x 2.52 x 0.39 in) |
168 x 83 x 8.5 mm (6.61 x 3.27 x 0.33 in) |
139.4 x 70.7 x 8.5 mm (5.49 x 2.78 x 0.33 in) |
| Weight | 124 g (4.37 oz) | 206 g (7.27 oz) | 150 g (5.29 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 HSDPA 850 / 1900 / 2100 |
HSDPA 850 / 1900 - D650a HSDPA 850 / 2100 - D650i |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE 800 / 900 / 1800 / 2100 / 2600 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - | ClearBlack display |
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| OS | Microsoft Windows Phone 8 | Android OS, v4.2 (Jelly Bean), upgradable to v4.4.2 (KitKat) | Microsoft Windows Phone 8.1 |
| Processor | Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 | Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 305 | Mali-400 | Adreno 305 |
| RAM | 512 MB | 1 GB | 1 GB |
| Internal Memory | 8 GB storage | 4 GB ROM | 16 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 6.0 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 720 x 1280 pixels (245 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 59.47% | 71.04% | 69.80% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 8 MP, 3264 x 2448 pixels | 10 MP, Carl Zeiss Optics |
| Flash | No | LED flash | LED Flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Face Detection, Panorama, HDR | Auto focus, OIS, 1/3.4'' sensor size, PureView technology, geo-tagging, face detection, panorama |
| Video | Yes, 720p@30fps | Yes, 1080p@30fps | 1080p@30fps, optical stabilization, stereo sound rec. |
| Front Camera | No [Similar] | Yes, 2 MP [Similar] | 0.9 MP, 720p [Similar] |
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| GPRS | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Yes | Class 12 | Up to 296 kbps |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v4.0 | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 8 GB storage, 512 MB RAM | 4 GB ROM, 1 GB RAM | 16 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 128 GB |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Li-Ion Battery | Non-removable Li-Po Battery | Li-Ion Battery (BV-L4A) |
| Capacity | 1430 mAh | 3000 mAh | 2200 mAh |
| Stand by | Up to 384 h (3G) Up to 360 h (3G) |
Up to 980 h (2G) Up to 890 h (3G) |
Up to 528 h |
| Talk Time | Up to 17 h 24 min (2G) Up to 9 h 42 min (3G) |
Up to 40 h (2G) Up to 24 h (3G) |
Up to 12 h 54 min (2G) Up to 14 h 48 min (3G) |
