Phone Comparison - Samsung Galaxy Alpha vs Sony Xperia M4 Aqua vs HTC Desire 728 Dual Sim
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| Manufacturer | Samsung | Sony | HTC |
| Announced | August 2014 | March 2015 | June 2015 |
| Status | Available - September 2014 | Available - April 2015 | Coming Soon - June 2015 |
| Price | - | Rs. 19,400 ($285.29) [Similarly Priced] | Rs. 12,999 ($191.16) [Similarly Priced] |
| Colors | Black, white, gold, silver, blue | Black, White, Copper, Silver | Gray, White, Blue, Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
140.5 x 72.6 x 7.3 mm (5.53 x 2.86 x 0.29 in) |
157.9 x 77.8 x 7.87 mm (6.22 x 3.06 x 0.31 in) |
| Weight | 115 g (4.06 oz) | 136 g (4.8 oz) | 153 g (5.4 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 HSDPA 850 / 1700 / 1900 / 2100 |
HSDPA 900 / 1900 / 2100 |
| 4G Network | LTE | LTE 800 / 850 / 900 / 1800 / 2100 / 2600 (Bands 1, 3, 5, 7, 8, 20) |
LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, 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 (Lollipop) |
| Processor | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 | 1.5GHz Octa-core, Qualcomm MSM8939 Snapdragon 615 | Octa-core 1.3 GHz Cortex-A53, Mediatek MT6753 |
| GPU | Mali-T628 MP6 | Adreno 405 | Mali-T720MP3 |
| RAM | 2 GB | 2 GB | 2 GB |
| Internal Memory | 32 GB | 8 GB | 16 GB |
| External Memory | No | microSD, up to 128 GB | microSD, up to 128 GB |
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| Type | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen, Scratch-resistant Glass | Super LCD2 Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 5.0 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (320 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 66.95% | 67.44% | 67.89% |
| 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, 4208 x 3120 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 | Auto focus, BSI Sensor, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 2160p@30fps | 1080p@30fps, HDR | 1080p@30fps |
| Front Camera | 2.1 MP [Similar] | 5 MP [Similar] | 5 MP, 1080p, BSI Sensor [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 | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP, EDR, LE | v4.1, A2DP, apt-X | v4.0, A2DP, LE |
| 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, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0, USB Host | microUSB v2.0, USB Host |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 32 GB, 2 GB RAM | 8 GB, 2 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | No | microSD, up to 128 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 | 2800 mAh |
| Stand by | - | - | Up to 485 h (3G) |
| Talk Time | - | - | Up to 21 h (3G) |
