Phone Comparison - Xiaomi Mi 4 vs LG G3 Stylus vs Samsung Galaxy Alpha (S801)
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| Manufacturer | Xiaomi | LG | Samsung |
| Announced | July 2014 | August 2014 | August 2014 |
| Status | Available - Q3 2014 | Available - October 2014 | Available - September 2014 |
| Colors | Black, White | Black, White, Gold | Charcoal Black, Sleek Silver, Dazzling White, Frosted Gold, Scub |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
139.2 x 68.5 x 8.9 mm (5.48 x 2.7 x 0.35 in) |
149.3 x 75.9 x 10.2 mm (5.88 x 2.99 x 0.4 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
| Weight | 149 g (5.26 oz) | 163 g (5.75 oz) | 115 g (4.06 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA | HSDPA |
| 4G Network | LTE | LTE | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.4.3 (KitKat) | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.4 (KitKat) |
| Processor | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 | Quad-core 1.3 GHz | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 |
| GPU | Adreno 330 | - | Adreno 330 |
| RAM | 3 GB | 1 GB | 2 GB |
| Internal Memory | 16/64 GB | 8 GB | 32 GB |
| External Memory | No | microSD, up to 32 GB | No |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.5 inches | 4.7 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 540 x 960 pixels (200 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 72.14% | 73.79% | 70.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13 MP, 4160 x 3120 pixels | 12 MP, 4128 x 3096 pixels |
| Flash | Dual-LED Flash | LED flash | LED flash |
| Features | Auto focus, 1/3' Sensor Size, 1.12µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Dual Camera, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR |
| Video | 2160p, 1080p@30fps, HDR | 1080p@30fps | 2160p@30fps, 1080p@60fps, 720p@120fps |
| Front Camera | 8 MP, 1080p@30fps [Similar] | Yes, 1.3 MP [Similar] | 2.1 MP [Similar] |
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| GPRS | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Yes | Class 12 | Yes |
| 3G | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE | HSDPA, HSUPA. LTE | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL, 50 Mbps UL |
| Bluetooth | v4.0, A2DP | v4.0, A2DP | v4.0, A2DP, EDR, 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 hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16/64 GB, 3 GB RAM | 8 GB, 1 GB RAM | 32 GB, 2 GB RAM |
| Expandable Storage | No | microSD, up to 32 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 | Non-removable Li-Ion Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 3080 mAh | 3000 mAh | 1860 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
