Phone Comparison - Lenovo P780 vs Samsung Galaxy E7 vs Xiaomi Mi 4i
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| Manufacturer | Lenovo | Samsung | Xiaomi |
| Announced | June 2013 | January 2015 | April 2015 |
| Status | Available - June 2013 | Available - Feburary 2015 | Available - April 2015 |
| Price | - | Rs. 17,400 ($255.88) [Similarly Priced] | Rs. 8,999 ($132.34) [Similarly Priced] |
| Colors | Black | Black, White, Blue | Black, White, Blue, Yellow, Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143 x 73 x 10 mm (5.63 x 2.87 x 0.39 in) |
151.4 x 77.2 x 7.3 mm (5.96 x 3.04 x 0.29 in) |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
| Weight | 176 g (6.21 oz) | 141 g (4.97 oz) | 130 g (4.59 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.4 (KitKat) | Android OS, v5.0 (Lollipop) |
| Processor | Quad-core 1.2 GHz Cortex-A7, MTK 6589 | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 |
| GPU | PowerVR SGX544 | Adreno 306 | Adreno 405 |
| RAM | 1 GB | 2 GB | 2 GB |
| Internal Memory | 4 GB | 16 GB | 16/32 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 128 GB | No |
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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 | 5.5 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (267 ppi) | 1080 x 1920 pixels (441 ppi) |
| Screen-to-Body Ratio | 65.90% | 71.36% | 71.57% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | - | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR |
| Video | Yes | 1080p@30fps | 1080p@30fps |
| Front Camera | Yes, 1.2 MP [Similar] | 5 MP [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, HSUPA | HSPA 42.2/5.76 Mbps | HSPA, LTE |
| Bluetooth | Yes, v3.0 | v4.0, A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot | Yes | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| USB | Yes, microUSB v2.0, USB On-the-go | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB, 1 GB RAM | 16 GB, 2 GB RAM | 16/32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 128 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 | Li-Po Battery | Non-removable Li-Ion Battery | Li-Po Battery |
| Capacity | 4000 mAh | 2950 mAh | 3120 mAh |
| Stand by | Up to 840 h | - | - |
| Talk Time | Up to 43 h (2G) Up to 25 h (3G) |
Up to 19 h (3G) | - |
