Phone Comparison - Lenovo Vibe X2 vs Xiaomi Mi 4i vs Oppo R7 Lite
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| Manufacturer | Lenovo | Xiaomi | Oppo |
| Announced | September 2014 | April 2015 | August 2015 |
| Status | Available - October 2014 | Available - April 2015 | Available - August 2015 |
| Price | - | Rs. 8,999 ($132.34) [Similarly Priced] | Rs. 20,499 ($301.46) [Similarly Priced] |
| Colors | White, Gold, Red, Dark Grey | Black, White, Blue, Yellow, Pink | Golden, Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
140.2 x 68.6 x 7.3 mm (5.52 x 2.7 x 0.29 in) |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
143 x 71 x 6.3 mm (5.63 x 2.8 x 0.25 in) |
| Weight | 120 g (4.23 oz) | 130 g (4.59 oz) | 147 g (5.19 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - Global, Taiwan HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA |
| 4G Network | LTE 800 / 1800 / 2100 / 2600 | LTE | LTE band 1(2100), 3(1800), 7(2600), 8(900), 40(2300) - Global LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 28(700), 40(2300) - Taiwan LTE band 1(2100), 3(1800), 4(1700/2100), 7(2600), 17(700), 20(800) - USA |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Android OS, v4.4 (KitKat) | Android OS, v5.0 (Lollipop) | Android OS, v5.1 (Lollipop) |
| Processor | Octa-core 2.0 GHz, MediatTek MT6595m True8Core | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1.3 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 |
| GPU | PowerVR G600 | Adreno 405 | Adreno 405 |
| RAM | 2 GB | 2 GB | 2 GB |
| Internal Memory | 32 GB | 16/32 GB | 16 GB |
| External Memory | No | No | microSD, up to 128 GB (uses SIM 2 slot) |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | AMOLED 2.5D Curved Screen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.0 inches | 5.0 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 71.52% | 71.57% | 67.75% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 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, Panorama, HDR | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR | Autofocus, Sony IMX214 Sensor, f/2.2 Aperture Phase Detection, Geo-tagging, Touch Focus, Face Detection, Beautify, Panorama, HDR |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 5 MP [Similar] | 8 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA, LTE | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.0, A2DP | v4.0 |
| Wi-Fi | Wi-Fi 802.11 b/g/n/ac, dual band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0, USB Host |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 32 GB, 2 GB RAM | 16/32 GB, 2 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | No | No | microSD, up to 128 GB (uses SIM 2 slot) |
| 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-Po Battery | Li-Po Battery | Non-removable Li-Po Battery |
| Capacity | 2300 mAh | 3120 mAh | 2320 mAh |
| Stand by | Up to 228 h (2G) Up to 216 h (3G) |
- | - |
| Talk Time | Up to 17 h (2G) Up to 19 h (3G) |
- | - |
