Phone Comparison - Xiaomi Mi 3 vs Samsung Galaxy Alpha vs Xiaomi Redmi Note 3 (MediaTek)
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| Manufacturer | Xiaomi | Samsung | Xiaomi |
| Announced | September 2013 | August 2014 | November 2015 |
| Status | Available - December 2013 | Available - September 2014 | Available - November 2015 |
| Price | - | - | Rs. 11,999 ($176.46) [Similarly Priced] |
| Colors | Various | Black, white, gold, silver, blue | Silver, Gray, Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
144 x 73.6 x 8.1 mm (5.67 x 2.9 x 0.32 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
150 x 76 x 8.7 mm (5.91 x 2.99 x 0.34 in) |
| Weight | 145 g (5.11 oz) | 115 g (4.06 oz) | 164 g (5.78 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 TD-SCDMA |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE | LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Notification LED | - | - | Yes |
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| OS | Android OS, v4.4 (KitKat) optimized with MIUI version 5 | Android OS, v4.4.4 (KitKat) | Android OS, v5.1 (Lollipop) |
| Processor | Quad-core 2.3 GHz Krait 400, Qualcomm MSM8274AB Snapdragon 800 | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 | Octa-core, Mediatek MT6795 Helio X10 |
| GPU | Adreno 330 | Mali-T628 MP6 | PowerVR G6200 |
| RAM | 2 GB | 2 GB | 2/3 GB |
| Internal Memory | 16/64 GB | 32 GB | 16/32 GB |
| External Memory | No | No | microSD, up to 128 GB |
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| Type | IPS LCD capacitive touchscreen | Super AMOLED capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 4.7 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (320 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 64.90% | 66.95% | 72.98% |
| 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 | 12 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | dual-LED flash | LED flash | Dual-LED (Dual Tone) |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR | Phase Detection Autofocus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama |
| Video | 1080p@30fps, HDR | 2160p@30fps | 1080p@30fps |
| Front Camera | 2 MP, 1080p@30fps [Similar] | 2.1 MP [Similar] | 5 MP, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL | HSPA, LTE |
| Bluetooth | v4.0, A2DP | v4.0, A2DP, EDR, LE | v4.1, A2DP, LE |
| 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, WiFi Direct, hotspot |
| USB | microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0 | microUSB v2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16/64 GB, 2 GB RAM | 32 GB, 2 GB RAM | 16/32 GB, 2/3 GB RAM |
| Expandable Storage | No | 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 | Non-removable Li-Ion Battery | Li-Ion Battery | Li-Po Battery |
| Capacity | 3050 mAh | 1860 mAh | 4000 mAh |
| Stand by | Up to 500 h | - | Up to 264 h (3G) |
| Talk Time | Up to 4 h | - | - |
