Phone Comparison - Nokia Lumia 620 vs Samsung I8700 Omnia 7 vs Microsoft Lumia 640 XL
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| Manufacturer | Nokia | Samsung | Microsoft |
| Announced | December 2012 | October 2010 | March 2015 |
| Status | Available - January 2013 | Available - October 2010 | Available - April 2015 |
| Price | - | - | Rs. 12,999 ($191.16) [Similarly Priced] |
| Colors | Lime green, orange, magenta, yellow, cyan, white, black | Black | Matte cyan, Orange, Black, Matte white, Glossy white |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
115.4 x 61.1 x 11 mm (4.54 x 2.41 x 0.43 in) |
122.4 x 64.2 x 11 mm (4.82 x 2.53 x 0.43 in) |
157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in) |
| Weight | 127 g (4.48 oz) | 138.2 g (4.87.0.07 oz) | 171 g (6.03 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 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, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Microsoft Windows Phone 8 | Microsoft Windows Phone 7 | Microsoft Windows Phone 8.1 with Lumia Denim |
| Processor | Dual-core 1 GHz Krait, Qualcomm Snapdragon S4 | 1 GHz Scorpion, Qualcomm QSD8250 Snapdragon | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 305 | Adreno 200 | Adreno 305 |
| RAM | 512 MB | N/A | 1 GB |
| Internal Memory | 8 GB storage | 8/16 GB | 8 GB |
| External Memory | microSD, up to 64 GB | No | microSD, up to 128 GB |
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| Type | TFT capacitive touchscreen | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.0 inches | 5.7 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 480 x 800 pixels (233 ppi) | 720 x 1280 pixels (259 ppi) |
| Screen-to-Body Ratio | 58.06% | 58.07% | 68.88% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1936 pixels | 5 MP, 2592 x 1944 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Image Stabilization | Auto focus, Carl Zeiss Optics, 1/3'' Sensor Size |
| Video | Yes, 720p@30fps | Yes, 720p@25fps | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | No [Similar] | 5 MP, 1080p [Similar] |
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| GPRS | Class B | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Class B | Class 12 | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSPA 42.2/5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP, EDR | Yes, v2.1 with A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, DLNA, 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 | 8/16 GB | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | 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 | Standard battery, Li-Ion | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1300 mAh (BL-4J) | 1500 mAh | 3000 mAh |
| Stand by | Up to 330 h | Up to 390 h (2G) Up to 330 h (3G) |
Up to 936 h (2G) Up to 936 h (3G) |
| Talk Time | Up to 14 h 40 min (2G) Up to 9 h 50 min (3G) |
Up to 5 h 40 min (2G) Up to 6 h 10 min (3G) |
Up to 31 h 20 min (2G) Up to 23 h 40 min (3G) |
