Phone Comparison - Samsung Galaxy Alpha vs Sony Xperia M4 Aqua Dual vs Xiaomi Redmi 3
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| Manufacturer | Samsung | Sony | Xiaomi |
| Announced | August 2014 | March 2015 | January 2016 |
| Status | Available - September 2014 | Available - April 2015 | Available - January 2016 |
| Price | - | Rs. 19,400 ($285.29) [Similarly Priced] | Rs. 6,999 ($102.93) [Similarly Priced] |
| Colors | Black, white, gold, silver, blue | Black, White, Coral, Silver | Dark Grey, Silver, Classic Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
145.5 x 72.6 x 7.3 mm (5.73 x 2.86 x 0.29 in) |
139.3 x 69.6 x 8.5mm (5.48 x 2.74 x 0.33in) |
| Weight | 115 g (4.06 oz) | 135 g (4.76 oz) | 144 g (5.08 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - E2333, E2363 HSDPA 850 / 900 / 1700 / 1900 / 2100 - E2312 |
HSDPA 850 / 900 / 1700 / 1900 / 2100 |
| 4G Network | LTE | LTE 800 / 850 / 900 / 1800 / 1900 / 2100 / 2600 (Bands 1, 2, 3, 5, 7, 8, 20) - E2333 |
LTE 700 / 1700 / 2600 /2300/2100/1800 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - IP68 Certified - Dust and Water Proof up to 1.5 Meter and 30 Minutes | - |
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| OS | Android OS, v4.4.4 (KitKat) | Android OS, v5.0.x (Lollipop) | Android OS, v5.1.1 (Lollipop) |
| Processor | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.2 GHz Cortex-A53, Qualcomm Snapdragon 616 |
| GPU | Mali-T628 MP6 | Adreno 405 | Adreno 405 |
| RAM | 2 GB | 2 GB | 2 GB |
| Internal Memory | 32 GB | 8 GB / 16 GB (E2333, E2363) | 16 GB |
| External Memory | No | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen, Scratch-resistant Glass | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 5.0 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (320 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 66.95% | 65.12% | 70.95% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio with RDS | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 12 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama | Phase Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | 2160p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 2.1 MP [Similar] | 5 MP, 720p [Similar] | Yes, 5 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Up to 107 kbps | Yes |
| Edge | Yes | Up to 296 kbps | Yes |
| 3G | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | v4.0, A2DP, EDR, LE | v4.1, A2DP | Yes, v4.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | microUSB v2.0 | microUSB v2.0, USB Host | Yes, microUSB v2.0, USB On-the-go, USB Host |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS support and GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 32 GB, 2 GB RAM | 8 GB / 16 GB (E2333, E2363), 2 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | No | microSD, up to 32 GB | 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-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Po Battery |
| Capacity | 1860 mAh | 2400 mAh | 4100 mAh |
| Stand by | - | Up to 493 h (2G) Up to 488 h (3G) |
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| Talk Time | - | Up to 12 h 40 min (2G) Up to 13 h 20 min (3G) |
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