Phone Comparison - Nokia Lumia 820 vs Xiaomi Redmi Note 4G vs Nokia Lumia 730 Dual SIM
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| Manufacturer | Nokia | Xiaomi | Nokia |
| Announced | Expected September 2012 | August 2014 | September 2014 |
| Status | Available - November 2012 | Available - November 2014 | Available - September 2014 |
| Colors | Black, Gray, Red, Yellow, White, Blue, Violet | Black/White | Orange, green, white, black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
123.8 x 68.5 x 9.9 mm (4.87 x 2.7 x 0.39 in) |
154 x 78.7 x 9.5 mm (6.06 x 3.1 x 0.37 in) |
134.7 x 68.5 x 8.9 mm (5.3 x 2.7 x 0.35 in) |
| Weight | 160 g (5.64 oz) | 199 g (7.02 oz) | 134 g (4.73 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | TD-SCDMA 1900 / 2000 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 800 / 1800 / 2600 / 2100/ 900 | TD-LTE 1900 / 2300 / 2600 | - |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, 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) | Microsoft Windows Phone 8.1 |
| Processor | Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 225 | Adreno 305 | Adreno 305 |
| RAM | 1 GB | 2 GB | 1 GB |
| Internal Memory | 8 GB storage | 8 GB | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 128 GB |
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| Type | AMOLED capacitive touchscreen | IPS LCD capacitive touchscreen | AMOLED Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 5.5 inches | 4.7 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 62.04% | 68.82% | 66.20% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels, Carl Zeiss Tessa | 13 MP, 4128 x 3096 pixels | 6.7 MP, Carl Zeiss optics |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR | Auto focus, 1/3.4'' Sensor Size, Geo-tagging, Face Detection, Panorama |
| Video | Yes | 1080p@30fps | 1080p@30fps, stereo sound rec. |
| Front Camera | Yes [Similar] | 5 MP [Similar] | 5 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Up to 296 kbps |
| 3G | HSDPA, 42 Mbps HSUPA, 5.76 Mbps LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
TD-SCDMA; LTE | HSDPA, 21.1 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.1 with A2DP, EDR | v4.0, A2DP, LE | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0, USB On-the-go | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB storage, 1 GB RAM | 8 GB, 2 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 128 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 | Li-Po Battery | Li-Ion Battery (BV-T5A) |
| Capacity | 1650 mAh | 3200 mAh | 2200 mAh |
| Stand by | Up to 330 h (2G) Up to 330 h (3G) |
Up to 775 h (3G) | Up to 600 h |
| Talk Time | Up to 14 h (2G) Up to 8 h (3G) |
Up to 38 h (2G) Up to 14 h (3G) |
Up to 22 h (2G) Up to 17 h (3G) |
