Phone Comparison - Nokia Lumia 620 vs Lenovo S820 vs Asus Zenfone 6
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| Manufacturer | Nokia | Lenovo | Asus |
| Announced | December 2012 | May 2013 | January 2014 |
| Status | Available - January 2013 | Available - May 2013 | Available - June 2014 |
| Colors | Lime green, orange, magenta, yellow, cyan, white, black | Flamingo red | Black, White, Red, Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
115.4 x 61.1 x 11 mm (4.54 x 2.41 x 0.43 in) |
139.5 x 69.7 x 9 mm (5.49 x 2.74 x 0.35 in) |
166.9 x 84.3 x 5.5-9.9 mm (6.57 x 3.32 x 0.22-0.39 in) |
| Weight | 127 g (4.48 oz) | 143 g (5.04 oz) | 196 g (6.91 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 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, v4.2 (Jelly Bean) | Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) |
| Processor | Dual-core 1 GHz Krait, Qualcomm Snapdragon S4 | Quad-core 1.2 GHz, MTK 6589W | Dual-core 2 GHz, Intel Atom Z2580 |
| GPU | Adreno 305 | PowerVR SGX544 | PowerVR SGX544MP2 |
| RAM | 512 MB | 1 GB | 1/2 GB |
| Internal Memory | 8 GB storage | 4 GB | 8/16/32 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | TFT capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.7 inches | 6.0 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 720 x 1280 pixels (312 ppi) | 720 x 1280 pixels (245 ppi) |
| Screen-to-Body Ratio | 58.06% | 62.82% | 70.40% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio; built-in antenna | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1936 pixels | 12 MP, 4000 x 3000 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection |
| Video | Yes, 720p@30fps | Yes | Yes |
| Front Camera | Yes, VGA [Similar] | Yes, 2 MP [Similar] | Yes, 2 MP [Similar] |
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| GPRS | Class B | Yes | Yes |
| Edge | Class B | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP, EDR | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band | Wi-Fi 802.11 a/b/g/n, dual band | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML5 | HTML | HTML |
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| Internal | 8 GB storage, 512 MB RAM | 4 GB, 1 GB RAM | 8/16/32 GB, 1/2 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 64 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 | Standard battery, Li-Ion | Li-Po Battery | Non-removable Li-Po Battery |
| Capacity | 1300 mAh (BL-4J) | 2000 mAh | 3300 mAh |
| Stand by | Up to 330 h | Up to 140 h (2G) Up to 140 h (3G) |
Up to 398 h (3G) |
| Talk Time | Up to 14 h 40 min (2G) Up to 9 h 50 min (3G) |
Up to 22 h (2G) Up to 10 h (3G) |
Up to 28 h (3G) |
