Phone Comparison - Microsoft Lumia 640 LTE vs Samsung Galaxy S6 Active vs HTC One A9
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| Manufacturer | Microsoft | Samsung | HTC |
| Announced | March 2015 | June 2015 | October 2015 |
| Status | Available - April 2015 | Available - June 2015 | Available - November 2015 |
| Price | Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 595 ($999.99) [Similarly Priced] | Rs. 24,495 ($360.22) [Similarly Priced] |
| Colors | Yes | Yes | Acid Gold, Opal Silver, Deep Garnet, Carbon Gray, Rose Gold, Cas |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
143.5 x 70.6 x 6.9 mm (5.65 x 2.78 x 0.27 in) |
145.8 x 70.8 x 7.3 mm (5.74 x 2.79 x 0.29 in) |
| Weight | 145 g (5.11 oz) | 138 g (4.87 oz) | 143 g (5.04 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 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800) | LTE |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
| Build Features | - | - Fingerprint sensor (PayPal certified) - Samsung Pay (Visa, MasterCard certified) - IP67 certified - dust and water resistant up to 1 meter and 30 minutes - MIL-STD-810G certified - salt, dust, humidity, rain, vibration, solar radiation, |
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| OS | Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v5.0.2 (Lollipop) | Android OS, v6.0 (Marshmallow) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.5 GHz Cortex-A53 & Quad-core 2.1 GHz Cortex-A57, Exynos 7420 | Octa-core 1.5 GHz Cortex-A53, Qualcomm MSM8952 Snapdragon 617 |
| GPU | Adreno 305 | Mali-T760 | Adreno 405 |
| RAM | 1 GB | 3 GB | 3 GB |
| Internal Memory | 8 GB | 32/64/128 GB | 32 GB |
| External Memory | microSD, up to 128 GB | No | microSD, up to 128 GB |
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| Type | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | Super AMOLED capacitive touchscreen | AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.1 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 1440 x 2560 pixels (576 ppi) | 1080 x 1920 pixels (441 ppi) |
| Screen-to-Body Ratio | 67.43% | 70.76% | 66.64% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | No | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 16 MP, 2988 x 5312 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, 1/4'' Sensor Size | Auto focus, OIS, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama | Autofocus, Optical Image Stabilization, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | 1080p@30fps | 2160p@30fps | Yes |
| Front Camera | 1 MP, 720p [Similar] | 5 MP, 1080p@30fps [Similar] | 4 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.1, A2DP, LE, apt-X | v4.1, A2DP, apt-X |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 (MHL 3 TV-out), USB Host | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 32/64/128 GB, 3 GB RAM | 32 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 128 GB | No | microSD, up to 128 GB |
| USB OTG | - | Supported | - |
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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 | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 2500 mAh | 2550 mAh | 2150 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) |
Up to 23 h (3G) | - |
