Phone Comparison - Xiaomi Redmi Note 4G vs Samsung Galaxy Alpha vs Sony Xperia Z3 Compact
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| Manufacturer | Xiaomi | Samsung | Sony |
| Announced | August 2014 | August 2014 | September 2014 |
| Status | Available - November 2014 | Available - September 2014 | Available - September 2014 |
| Colors | Black/White | Black, white, gold, silver, blue | Black, White, Green, Orange |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
154 x 78.7 x 9.5 mm (6.06 x 3.1 x 0.37 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
127.3 x 64.9 x 8.6 mm (5.01 x 2.56 x 0.34 in) |
| Weight | 199 g (7.02 oz) | 115 g (4.06 oz) | 129 g (4.55 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 / 1700 / 1900 / 2100 - D5803 HSDPA 850 / 900 / 1900 / 2100 - D5833 |
| 4G Network | TD-LTE 1900 / 2300 / 2600 | LTE | LTE 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - | IP68 Certified - Dust Proof and Water Resistant over 1 Meter and 30 Minutes |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.4 (KitKat) | Android OS, v4.4.4 (KitKat) |
| Processor | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 |
| GPU | Adreno 305 | Mali-T628 MP6 | Adreno 330 |
| RAM | 2 GB | 2 GB | 2 GB |
| Internal Memory | 8 GB | 32 GB | 16 GB |
| External Memory | microSD, up to 64 GB | No | microSD, up to 64 GB |
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| Type | IPS LCD capacitive touchscreen | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen, Triluminos Display, X-Reality Engine |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 4.7 inches | 4.6 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (320 ppi) | 720 x 1280 pixels (319 ppi) |
| Screen-to-Body Ratio | 68.82% | 66.95% | 70.72% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | No | Stereo FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 12 MP, 4128 x 3096 pixels | 20.7 MP, 5248 х 3936 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 And Smile Detection, Panorama, HDR | Auto focus, 1/2.3' Sensor Size, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR, Panorama |
| Video | 1080p@30fps | 2160p@30fps | 2160p@30fps, 1080p@30fps, HDR |
| Front Camera | 5 MP [Similar] | 2.1 MP [Similar] | 2.2 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Up to 107 kbps |
| Edge | Yes | Yes | Up to 296 kbps |
| 3G | TD-SCDMA; LTE | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | v4.0, A2DP, LE | v4.0, A2DP, EDR, LE | 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, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | microUSB v2.0, USB On-the-go | microUSB v2.0 | microUSB v2.0 (MHL), USB On-the-go, 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 | 8 GB, 2 GB RAM | 32 GB, 2 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | microSD, up to 64 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 | Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 3200 mAh | 1860 mAh | 2600 mAh |
| Stand by | Up to 775 h (3G) | - | Up to 880 h (2G) Up to 920 h (3G) |
| Talk Time | Up to 38 h (2G) Up to 14 h (3G) |
- | Up to 12 h (2G) Up to 14 h (3G) |
