Phone Comparison - Nokia Lumia 820 vs Samsung Galaxy Grand Duos I9082 vs Micromax Canvas 4 A210
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| Manufacturer | Nokia | Samsung | Micromax |
| Announced | Expected September 2012 | December 2012 | July 2013 |
| Status | Available - November 2012 | Available - January 2013 | Available - July 2013 |
| Colors | Black, Gray, Red, Yellow, White, Blue, Violet | Black, White | Grey, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
123.8 x 68.5 x 9.9 mm (4.87 x 2.7 x 0.39 in) |
143.5 x 76.9 x 9.6 mm (5.65 x 3.03 x 0.38 in) |
144.5 x 73 x 8.9 mm (5.69 x 2.87 x 0.35 in) |
| Weight | 160 g (5.64 oz) | 162 g (5.71 oz) | 158 g (5.57 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 - SIM 1 only HSDPA 900 / 1900 / 2100 - SIM 1 only |
HSDPA 2100 - SIM 1 only |
| 4G Network | LTE 800 / 1800 / 2600 / 2100/ 900 | - | - |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Microsoft Windows Phone 8 | Android OS, v4.1.2 (Jelly Bean) | Android OS, v4.2.1 (Jelly Bean) |
| Processor | Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon | Dual-core 1.2 GHz Cortex-A9, Broadcom | Quad-core 1.2 GHz Cortex-A7, MediaTek MT6589 |
| GPU | Adreno 225 | Broadcom VideoCore IV | PowerVR SGX 544MP |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 8 GB storage | 8 GB | 16 GB (2.4 GB for Apps, 10 GB Internal Storage) |
| External Memory | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | AMOLED capacitive touchscreen | Capacitive touchscreen | True HD-IPS LCD capacitive touchscreen, Corning Gorilla Glass 2 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 5.0 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (187 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 62.04% | 64.20% | 65.21% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | FM radio with RDS, FM Recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels, Carl Zeiss Tessa | 8 MP, 3264x2448 pixels | 13 MP, 4128x3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, 6+ face detection, Scene mode, 99 Continuous (Burst) mode, Smile detection, Photosolid, High Dynamic Range Synthesis, 4 direction Panorama, Effects Library, Geo-tagging, Touch focus |
| Video | Yes | Yes, 1080p@30fps | Yes, 1080p@30fps |
| Front Camera | Yes [Similar] | Yes, 2 MP [Similar] | Yes, 5 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps HSUPA, 5.76 Mbps LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 11 Mbps |
| Bluetooth | Yes, v3.1 with A2DP, EDR | Yes, v4.0 with A2DP, LE, EDR | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS support |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB storage, 1 GB RAM | 8 GB, 1 GB RAM | 16 GB , 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 GB |
| USB OTG | - | - | Supported |
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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 | Standard battery, Li-Ion | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1650 mAh | 2100 mAh | 2000 mAh |
| Stand by | Up to 330 h (2G) Up to 330 h (3G) |
Up to 440 h | Up to 220 h |
| Talk Time | Up to 14 h (2G) Up to 8 h (3G) |
Up to 10 h 10 min | Up to 8 h |
