Phone Comparison - Xiaomi Mi 4i vs Acer Iconia One 8 B1-820 vs Lenovo K80
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| Manufacturer | Xiaomi | Acer | Lenovo |
| Announced | April 2015 | April 2015 | April 2015 |
| Status | Available - April 2015 | Coming Soon - April 2015 | Available - April 2015 |
| Price | Rs. 8,999 ($132.34) [Similarly Priced] | Rs. 5,180 ($75.99) [Similarly Priced] | Rs. 18,300 ($269.12) [Similarly Priced] |
| Colors | Black, White, Blue, Yellow, Pink | Various | Black, Silver, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
213.9 x 127.7 x 9.5 mm (8.42 x 5.03 x 0.37 in) |
8.5 mm thickness (0.33 in thickness) |
| Weight | 130 g (4.59 oz) | 355 g (12.52 oz) | - |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | N/A | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | N/A | HSDPA 2100 |
| 4G Network | LTE | - | LTE |
| Messaging | SMS, MMS, EMail, IM | , Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v5.0 (Lollipop) | Android OS, v5.0 (Lollipop) | Android OS, v5.0 (Lollipop) |
| Processor | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1.83 GHz, Intel Atom Z3735G | Quad-core 1.8 GHz |
| GPU | Adreno 405 | - | - |
| RAM | 2 GB | 1 GB | 4 GB |
| Internal Memory | 16/32 GB | 16/32 GB | 64 GB |
| External Memory | No | microSD, up to 32 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 |
| Size | 5.0 inches | 8.0 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 800 x 1280 pixels (189 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 71.57% | 67.71% | - |
| 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 | 5 MP, 2592 х 1944 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | No | optical image stabil |
| Features | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR | Yes | Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | Yes | 1080p@30fps |
| Front Camera | 5 MP [Similar] | VGA [Similar] | Yes [Similar] |
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| GPRS | Yes | No | Yes |
| Edge | Yes | No | Yes |
| 3G | HSPA, LTE | No | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.0 | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | No | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16/32 GB, 2 GB RAM | 16/32 GB, 1 GB RAM | 64 GB, 4 GB RAM 32 GB, 2 GB RAM |
| Expandable Storage | No | microSD, up to 32 GB | microSD, up to 32 GB |
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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 |
| Capacity | 3120 mAh | 4550 mAh | 4000 mAh |
| Stand by | - | - | - |
| Talk Time | - | Up to 8 h 30 min (multimedia) | - |
