Phone Comparison - Xiaomi Redmi Note 4G vs Samsung Galaxy S6 vs Microsoft Lumia 640 XL
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| Price Comparison (India) | - | - | |
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| Manufacturer | Xiaomi | Samsung | Microsoft |
| Announced | August 2014 | March 2015 | March 2015 |
| Status | Available - November 2014 | Available - April 2015 | Available - April 2015 |
| Price | - | Rs. 29,999 ($441.16) [Similarly Priced] | Rs. 12,999 ($191.16) [Similarly Priced] |
| Colors | Black/White | White Pearl, Black Sapphire, Gold Platinum, Blue Topaz | Matte cyan, Orange, Black, Matte white, Glossy white |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
154 x 78.7 x 9.5 mm (6.06 x 3.1 x 0.37 in) |
143.4 x 70.5 x 6.8 mm (5.65 x 2.78 x 0.27 in) |
157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in) |
| Weight | 199 g (7.02 oz) | 138 g (4.87 oz) | 171 g (6.03 oz) |
| 2G Network | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | TD-SCDMA 1900 / 2000 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | TD-LTE 1900 / 2300 / 2600 | LTE | - |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - Corning Gorilla Glass 4 back panel - Fingerprint sensor (PayPal certified) - Samsung Pay (Visa, MasterCard certified) |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v5.0.2 (Lollipop) | Microsoft Windows Phone 8.1 with Lumia Denim |
| Processor | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 | Quad-core 1.5 GHz Cortex-A53 & Quad-core 2.1 GHz Cortex-A57, Exynos 7420 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 305 | Mali-T760 | Adreno 305 |
| RAM | 2 GB | 3 GB | 1 GB |
| Internal Memory | 8 GB | 32/64/128 GB | 8 GB |
| External Memory | microSD, up to 64 GB | No | microSD, up to 128 GB |
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| Type | IPS LCD capacitive touchscreen | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 4 | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.1 inches | 5.7 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 1440 x 2560 pixels (577 ppi) | 720 x 1280 pixels (259 ppi) |
| Screen-to-Body Ratio | 68.82% | 70.66% | 68.88% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | No | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 16 MP, 3456 x 4608 pixels, OIS | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED Flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama | Auto focus, Carl Zeiss Optics, 1/3'' Sensor Size |
| Video | 1080p@30fps | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 5 MP, 1080p@30fps, dual video call, HDR [Similar] | 5 MP, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | TD-SCDMA; LTE | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps | HSPA 42.2/5.76 Mbps |
| Bluetooth | v4.0, A2DP, LE | v4.1, A2DP, LE, apt-X | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| USB | microUSB v2.0, USB On-the-go | microUSB v2.0 (MHL 3 TV-out), USB Host | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 2 GB RAM | 32/64/128 GB, 3 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | microSD, up to 128 GB |
| USB OTG | Supported | 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-Po Battery | Non-removable Li-Ion Battery | Li-Ion Battery |
| Capacity | 3200 mAh | 2550 mAh | 3000 mAh |
| Stand by | Up to 775 h (3G) | - | Up to 936 h (2G) Up to 936 h (3G) |
| Talk Time | Up to 38 h (2G) Up to 14 h (3G) |
- | Up to 31 h 20 min (2G) Up to 23 h 40 min (3G) |
Rs. 33,900 
Rs. 33,900 
Rs. 33,700 
