Phone Comparison - Microsoft Lumia 640 LTE vs LG G Stylo vs LG K7
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| Manufacturer | Microsoft | LG | LG |
| Announced | March 2015 | April 2015 | January 2016 |
| Status | Available - April 2015 | Available - May 2015 | Available - April 2016 |
| Price | Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 6,790 ($99.65) [Similarly Priced] | Rs. 7,889 ($116.01) [Similarly Priced] |
| Colors | Yes | White, Titanium | White, Black, Gold; Titan (LTE model) |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
154.2 x 79.2 x 9.7 mm (6.07 x 3.12 x 0.38 in) |
143.6 x 72.5 x 9.1 mm (5.65 x 2.85 x 0.36 in) |
| Weight | 145 g (5.11 oz) | 164.4 g (5.78.0.14 oz) | 161 g (5.68 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 1900 / 2100 - T-Mobile | HSDPA |
| 4G Network | LTE | LTE band 2(1900), 4(1700/2100), 12(700) - T-Mobile | LTE |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v5.0 (Lollipop) | Android OS, v5.1 (Lollipop) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Quad-core 1.3 GHz (3G model) Quad-core 1.1 GHz (LTE model), Mediatek MT6580M (3G model) Qualcomm MSM8909 Snapdragon 210 (LTE model) |
| GPU | Adreno 305 | Adreno 306 | Mali-400MP2 Adreno 304 |
| RAM | 1 GB | 2 GB | 1 GB |
| Internal Memory | 8 GB | 16 GB | 8 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 32 GB |
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| Type | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.7 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (258 ppi) | 480 x 854 pixels (196 ppi) |
| Screen-to-Body Ratio | 67.43% | 73.14% | 66.12% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 13 MP, 4128 x 3096 pixels | 5 MP or 8 MP |
| Flash | LED flash | optical image stabil | LED flash |
| Features | Auto focus, 1/4'' Sensor Size | Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Autofocus, Geo-tagging, touch focus, face detection |
| Video | 1080p@30fps | 1080p@30fps | 720p |
| Front Camera | 1 MP, 720p [Similar] | 5 MP [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Class 12 | Yes |
| Edge | Yes | Class 12 | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE |
| Bluetooth | v4.0, A2DP | v4.1, A2DP | Yes |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Yes |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16 GB, 2 GB RAM | 8 GB, 1 GB RAM 16 GB, 1.5 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 32 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 | Li-Ion Battery |
| Capacity | 2500 mAh | 3000 mAh | 2125 mAh |
| Stand by | Up to 864 h (2G) Up to 864 h (3G) |
Up to 432 h (3G) | - |
| Talk Time | Up to 26 h 30 min (2G) Up to 17 h 30 min (3G) |
Up to 18 h (3G) | - |
