Phone Comparison - Samsung Galaxy Ace 4 vs Microsoft Lumia 640 XL Dual SIM vs Samsung Galaxy S6 (CDMA)
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| Manufacturer | Samsung | Microsoft | Samsung |
| Announced | June 2014 | March 2015 | March 2015 |
| Status | Available - July 2014 | Available - April 2015 | Available - April 2015 |
| Price | - | Rs. 12,999 ($191.16) [Similarly Priced] | Rs. 29,999 ($441.16) [Similarly Priced] |
| Colors | Iris Charcoal, Classic White | Matte cyan, Orange, Black, Matte white, Glossy white | White Pearl, Black Sapphire, Gold Platinum |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
121.4 x 62.9 x 10.8 mm (4.78 x 2.48 x 0.43 in) |
157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in) |
143.5 x 70.6 x 6.9 mm (5.65 x 2.78 x 0.27 in) |
| Weight | 123.8 g (4.34.0.28 oz) | 171 g (6.03 oz) | 140 g (4.94 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - G920V, G920P CDMA2000 1xEV-DO - G920V, G920P, G920R |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - G920V |
| 4G Network | - | - | LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 13(700) - G920V |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, 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, v4.4.2 (KitKat) | Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v5.0.2 (Lollipop) |
| Processor | Dual-core 1.0 GHz | 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 |
| GPU | - | Adreno 305 | Mali-T760MP8 |
| RAM | 512 MB | 1 GB | 3 GB |
| Internal Memory | 4 GB | 8 GB | 32/64/128 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 128 GB | No |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 4 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 5.7 inches | 5.1 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 720 x 1280 pixels (259 ppi) | 1440 x 2560 pixels (576 ppi) |
| Screen-to-Body Ratio | 59.76% | 68.88% | 70.76% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 х 1944 pixels | 13 MP, 4128 x 3096 pixels | 16 MP, 2988 x 5312 pixels |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, Geo-tagging, Face And Smile Detection, Panorama | Auto focus, Carl Zeiss Optics, 1/3'' Sensor Size | OIS, Auto-focus, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama |
| Video | Yes, 720p@30fps | 1080p@30fps | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. |
| Front Camera | Yes, VGA [Similar] | 5 MP, 1080p [Similar] | 5 MP, 1440p@30fps, dual video call, Auto [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA 42.2/5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | v4.0, A2DP | v4.1, A2DP, LE, apt-X |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 | microUSB v2.0, USB Host |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 4 GB, 512 MB RAM | 8 GB, 1 GB RAM | 32/64/128 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 128 GB | No |
| 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 | Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 1500 mAh | 3000 mAh | 2550 mAh |
| Stand by | - | Up to 936 h (2G) Up to 936 h (3G) |
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| Talk Time | - | Up to 31 h 20 min (2G) Up to 23 h 40 min (3G) |
Up to 23 h (3G) |
