Phone Comparison - Samsung Galaxy Core 2 Duos vs Lenovo A6000 vs Microsoft Lumia 640 Dual SIM
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| Manufacturer | Samsung | Lenovo | Microsoft |
| Announced | June 2014 | January 2015 | March 2015 |
| Status | Available - July 2014 | Available - January 2015 | Available - April 2015 |
| Price | - | Rs. 6,699 ($98.51) [Similarly Priced] | Rs. 8,999 ($132.34) [Similarly Priced] |
| Colors | White, Black | Black | Yes |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
130.3 x 68 x 9.8 mm (5.13 x 2.68 x 0.39 in) |
141 x 70 x 8.2 mm (5.55 x 2.76 x 0.32 in) |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
| Weight | 138 g (4.87 oz) | 128 g (4.52 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 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE | - |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.2 (KitKat) | Microsoft Windows Phone 8.1 with Lumia Denim |
| Processor | Quad-core 1.2 GHz | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | - | Adreno 306 | Adreno 305 |
| RAM | 768 MB | 1 GB | 1 GB |
| Internal Memory | 4 GB | 8 GB | 8 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | TFT capacitive touchscreen | IPS Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.5 inches | 5.0 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (207 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 65.25% | 69.69% | 67.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 х 1944 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 And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, 1/4'' Sensor Size |
| Video | Yes | Yes | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | 2 MP [Similar] | 1 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | v4.0, A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB, 768 MB RAM | 8 GB, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 32 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 | 2000 mAh | 2300 mAh | 2500 mAh |
| Stand by | - | Up to 264 h (2G) Up to 264 h (3G) Up to 276 h (4G) |
Up to 840 h (2G) Up to 840 h (3G) |
| Talk Time | - | Up to 22 h (2G) Up to 13 h (3G) |
Up to 27 h 30 min (2G) Up to 20 h 30 min (3G) |
