Phone Comparison - Xiaomi Mi 4 vs Xiaomi Redmi Note 4G vs Lenovo K80
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| Manufacturer | Xiaomi | Xiaomi | Lenovo |
| Announced | July 2014 | August 2014 | April 2015 |
| Status | Available - Q3 2014 | Available - November 2014 | Available - April 2015 |
| Price | - | - | Rs. 18,300 ($269.12) [Similarly Priced] |
| Colors | Black, White | Black/White | Black, Silver, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
139.2 x 68.5 x 8.9 mm (5.48 x 2.7 x 0.35 in) |
154 x 78.7 x 9.5 mm (6.06 x 3.1 x 0.37 in) |
8.5 mm thickness (0.33 in thickness) |
| Weight | 149 g (5.26 oz) | 199 g (7.02 oz) | - |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | TD-SCDMA 1900 / 2000 | HSDPA 2100 |
| 4G Network | LTE | TD-LTE 1900 / 2300 / 2600 | 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, v4.2 (Jelly Bean) | Android OS, v5.0 (Lollipop) |
| Processor | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 | Quad-core 1.8 GHz |
| GPU | Adreno 330 | Adreno 305 | - |
| RAM | 3 GB | 2 GB | 4 GB |
| Internal Memory | 16/64 GB | 8 GB | 64 GB |
| External Memory | No | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.5 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (267 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 72.14% | 68.82% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | Dual-LED Flash | LED flash | optical image stabil |
| 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 And Smile Detection, HDR | Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 2160p, 1080p@30fps, HDR | 1080p@30fps | 1080p@30fps |
| Front Camera | 8 MP, 1080p@30fps [Similar] | 5 MP [Similar] | Yes [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; LTE | TD-SCDMA; LTE | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.0, A2DP, LE | v4.0, 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/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| USB | microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0, USB On-the-go | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16/64 GB, 3 GB RAM | 8 GB, 2 GB RAM | 64 GB, 4 GB RAM 32 GB, 2 GB RAM |
| Expandable Storage | No | microSD, up to 64 GB | microSD, up to 32 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-Po Battery | Li-Ion Battery |
| Capacity | 3080 mAh | 3200 mAh | 4000 mAh |
| Stand by | - | Up to 775 h (3G) | - |
| Talk Time | - | Up to 38 h (2G) Up to 14 h (3G) |
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