Phone Comparison - Microsoft Lumia 640 Dual SIM vs Microsoft Lumia 650 Dual SIM vs Samsung Galaxy J7 (2016)
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| Price Comparison (India) | - | - | |
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| Manufacturer | Microsoft | Microsoft | Samsung |
| Announced | March 2015 | February 2016 | March 2016 |
| Status | Available - April 2015 | Available - March 2016 | Available - March 2016 |
| Price | Rs. 8,999 ($132.34) [Similarly Priced] | Rs. 9,999 ($199.99) [Similarly Priced] | Rs. 15,990 ($235.15) [Similarly Priced] |
| Colors | Yes | Black, White | Gold, White, Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
142 x 70.9 x 6.9 mm (5.59 x 2.79 x 0.27 in) |
151.7 x 76 x 7.8 mm (5.97 x 2.99 x 0.31 in) |
| Weight | 145 g (5.11 oz) | 122 g (4.3 oz) | 170 g (6 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - J710F, J710H HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - J710M |
| 4G Network | - | LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - J710F |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Microsoft Windows Phone 8.1 with Lumia Denim | Microsoft Windows 10 | Android OS, v6.0.1 (Marshmallow) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.3 GHz Cortex-A7, Qualcomm Snapdragon 212 | Octa-core (4x1.6 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53), Qualcomm MSM8952 Snapdragon 617 |
| GPU | Adreno 305 | Adreno 304 | Adreno 405 |
| RAM | 1 GB | 1 GB | 3 GB |
| Internal Memory | 8 GB | 16 GB | 16 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 200 GB (dedicated slot) | microSD, up to 128 GB |
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| Type | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | AMOLED capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.0 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 67.43% | 68.33% | 72.16% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio, RDS, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 8 MP, 3264 x 2448 pixels | 13 MP |
| Flash | LED flash | Yes | LED Flash |
| Features | Auto focus, 1/4'' Sensor Size | Auto focus, Geo-tagging, Touch Focus, Face Detection | Autofocus, f/1.9, 28mm, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | 1080p@30fps | 720p@30fps | 1080p@30fps |
| Front Camera | 1 MP, 720p [Similar] | 5 MP, f/2.2, 720p video [Similar] | 5 MP, f/1.9, LED Flash [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | 296.0/236.8 Kbps | Yes |
| 3G | HSPA 42.2/5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.1, A2DP, LE | v4.1, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16 GB, 1 GB RAM | 16 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 200 GB (dedicated slot) | 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 | Li-Ion Battery | Removable Li-Ion Battery |
| Capacity | 2500 mAh | 2000 mAh | 3300 mAh |
| Stand by | Up to 840 h (2G) Up to 840 h (3G) |
Up to 624 h (3G) | Up to 354 h |
| Talk Time | Up to 27 h 30 min (2G) Up to 20 h 30 min (3G) |
Up to 16 h (2G) Up to 13 h (3G) |
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Rs. 15,990 
