Phone Comparison - LG G3 S vs HTC Desire 620 Dual SIM vs Microsoft Lumia 640 LTE
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| Manufacturer | LG | HTC | Microsoft |
| Announced | July 2014 | December 2014 | March 2015 |
| Status | Available - August 2014 | Available - December 2014 | Available - April 2015 |
| Price | - | - | Rs. 7,999 ($117.63) [Similarly Priced] |
| Colors | Metallic Black, Silk White | Blue, Black, Gray, White | Yes |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
137.7 x 69.6 x 10.3 mm (5.42 x 2.74 x 0.41 in) |
150.1 x 72.7 x 9.6 mm (5.91 x 2.86 x 0.38 in) |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
| Weight | 134 g (4.73 oz) | 160 g (5.64 oz) | 145 g (5.11 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | - | LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2600 | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.4 (KitKat) | Microsoft Windows Phone 8.1 with Lumia Denim |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 305 | Adreno 306 | Adreno 305 |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 8 GB | 8 GB | 8 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 128 GB | microSD, up to 128 GB |
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| Type | IPS LCD capacitive touchscreen | Capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.0 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 71.77% | 63.04% | 67.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | FM radio | FM radio |
| 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 | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face & Smile Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama | Auto focus, 1/4'' Sensor Size |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 1.3 MP [Similar] | 5 MP [Similar] | 1 MP, 720p [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSPA+ | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP, LE | v4.0, A2DP, apt-X | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 8 GB, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 128 GB | 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-Po Battery | Li-Ion Battery |
| Capacity | 2540 mAh | 2100 mAh | 2500 mAh |
| Stand by | - | - | Up to 864 h (2G) Up to 864 h (3G) |
| Talk Time | - | - | Up to 26 h 30 min (2G) Up to 17 h 30 min (3G) |
