Phone Comparison - Microsoft Lumia 640 LTE vs Samsung Galaxy J3 Pro vs alcatel A3
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| Manufacturer | Microsoft | Samsung | alcatel |
| Announced | March 2015 | June 2016 | February 2017 |
| Status | Available - April 2015 | Available - June 2016 | Coming Soon - Q1 2017 |
| Price | Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 7,990 ($139.99) [Similarly Priced] | - |
| Colors | Yes | White, Black, Gold | White, Gray |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
142.2 x 71.3 x 8 mm (5.6 x 2.81 x 0.31 in) |
142 x 70.5 x 8.6 mm (5.59 x 2.78 x 0.34 in) |
| Weight | 145 g (5.11 oz) | 139 g (4.9 oz) | - |
| SIM Type | - | Dual-SIM | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) | LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | - | - Fingerprint Sensor |
| Notification LED | - | No | Yes |
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| OS | Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v6.0.1 (Marshmallow) | Android OS, v6.0 (Marshmallow) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.5GHz/Quad-core 1.2 GHz, Spreadtrum 9830A/Qualcomm MSM8916 Snapdragon 410 | Quad-core 1.25 GHz Cortex-A53, Mediatek MT6737 |
| GPU | Adreno 305 | Mali-T720/Adreno 306 | Mali-T720MP2 |
| RAM | 1 GB | 2 GB | 1.5 GB |
| Internal Memory | 8 GB | 16 GB | 16 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 128 GB (dedicated slot) | microSD, up to 32 GB |
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| Type | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen |
| 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 | 67.43% | 67.85% | 68.71% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio, RDS, recording | FM radio, RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 8 MP | 13 MP |
| Flash | LED flash | LED flash | LED Flash |
| Features | Auto focus, 1/4'' Sensor Size | Auto focus, f/2.2 aperture, Geo-tagging, Touch Focus, Face Detection, HDR | Autofocus, f/2.0, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 1 MP, 720p [Similar] | 5 MP, f/2.2 [Similar] | 5 MP, LED flash [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 Cat4 150/50 Mbps, VoLTE | HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.1, A2DP | v4.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0, USB On-The-Go | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS/ BDS (region dependent) | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16 GB, 2 GB RAM | 16 GB, 1.5 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 128 GB (dedicated slot) | microSD, up to 32 GB |
| USB OTG | - | Supported | Not 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 | Removable Li-Ion Battery | Li-Ion Battery |
| Capacity | 2500 mAh | 2600 mAh | 2460 mAh |
| Stand by | Up to 864 h (2G) Up to 864 h (3G) |
303 h | - |
| Talk Time | Up to 26 h 30 min (2G) Up to 17 h 30 min (3G) |
- | - |
