Phone Comparison - Microsoft Lumia 640 Dual SIM vs HTC Desire 630 vs HTC Desire 825
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| Manufacturer | Microsoft | HTC | HTC |
| Announced | March 2015 | February 2016 | February 2016 |
| Status | Available - April 2015 | Coming soon | Coming soon |
| Price | Rs. 8,999 ($132.34) [Similarly Priced] | Rs. 12,500 ($183.82) [Similarly Priced] | Rs. 15,250 ($224.26) [Similarly Priced] |
| Colors | Yes | Various | Various |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
146.9 x 70.9 x 8.3 mm (5.78 x 2.79 x 0.33 in) |
156.9 x 76.9 x 7.4 mm (6.18 x 3.03 x 0.29 in) |
| Weight | 145 g (5.11 oz) | 140 g (4.94 oz) | 155 g (5.47 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 40(2300) |
| 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, v6.0 (Marshmallow) | Android OS, v6.0 (Marshmallow) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.6 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.6 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 305 | Adreno 305 | Adreno 305 |
| RAM | 1 GB | 2 GB | 2 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 200 GB (dedicated slot) |
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| Type | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | Super LCD capacitive touchscreen | Super LCD Capacitive Touchscreen, Corning Gorilla Glass 4 |
| 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) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 67.43% | 66.05% | 69.13% |
| 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, 4160 x 3120 pixels | 13 MP, 4160 x 3120 pixels |
| Flash | LED flash | LED flash | LED Flash |
| Features | Auto focus, 1/4'' Sensor Size | Auto focus, f/2.4, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Autofocus, f/2.2, 28 mm, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 1 MP, 720p [Similar] | 5 MP, f/2.8 [Similar] | 5 MP, f/2.8, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps | HSPA, LTE Cat4 150/50 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.1, A2DP | v4.1, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16 GB, 2 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 200 GB (dedicated slot) | microSD, up to 200 GB (dedicated slot) |
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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 | Removable Li-Ion Battery | Removable Li-Ion Battery |
| Capacity | 2500 mAh | 2200 mAh | 2700 mAh |
| Stand by | Up to 840 h (2G) Up to 840 h (3G) |
- | - |
| Talk Time | Up to 27 h 30 min (2G) Up to 20 h 30 min (3G) |
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