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- Oppo A71 vs Vivo Y66 vs Vivo Y55s
Oppo A71 vs Vivo Y66 vs Vivo Y55 comparison
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| key specs | ||||
| Display | 5.20-inch | 5.50-inch | 5.20-inch | |
| Processor | MediaTek MT6750 | octa-core | Qualcomm Snapdragon 425 | |
| Front Camera | 5-megapixel | 16-megapixel | 5-megapixel | |
| Rear Camera | 13-megapixel | 13-megapixel | 13-megapixel | |
| RAM | 3GB | 3GB | 3GB | |
| Storage | 16GB | 32GB | 16GB | |
| Battery Capacity | 3000mAh | 3000mAh | 2730mAh | |
| OS | Android 7.1 | Android 6.0 | Android 6.0 | |
| Resolution | 720x1280 pixels | 720x1280 pixels | 1280x720 pixels | |
| general | ||||
| Brand | Oppo | Vivo | Vivo | |
| Model | A71 | Y66 | Y55s | |
| Release date | September 1, 2017 | March 1, 2017 | February 1, 2017 | |
| Launched in India | Yes | - | Yes | |
| Form factor | Touchscreen | Touchscreen | Touchscreen | |
| Dimensions (mm) | 148.10 x 73.80 x 7.60 | 153.80 x 75.50 x 7.60 | 147.90 x 72.90 x 7.50 | |
| Weight (g) | 137.00 | 155.00 | 142.00 | |
| Battery capacity (mAh) | 3000 | 3000 | 2730 | |
| Removable battery | No | No | No | |
| Colours | Gold, Black | Crown Gold, Matte Black | Gold, Space Grey | |
| SAR value | - | - | 1.08 | |
| display | ||||
| Screen size (inches) | 5.20 | 5.50 | 5.20 | |
| Touchscreen | Yes | Yes | Yes | |
| Resolution | 720x1280 pixels | 720x1280 pixels | 1280x720 pixels | |
| Aspect ratio | 16:9 | - | 16:9 | |
| Pixels per inch (PPI) | 282 | - | 282 | |
| hardware | ||||
| Processor | octa-core (4x1.5GHz + 4x1GHz) | octa-core | 1.4GHz quad-core | |
| Processor make | MediaTek MT6750 | - | Qualcomm Snapdragon 425 | |
| RAM | 3GB | 3GB | 3GB | |
| Internal storage | 16GB | 32GB | 16GB | |
| Expandable storage | Yes | Yes | Yes | |
| Expandable storage type | microSD | microSD | microSD | |
| Expandable storage up to (GB) | 256 | 256 | 256 | |
| camera | ||||
| Rear camera | 13-megapixel (f/2.2) | 13-megapixel | 13-megapixel (f/2.2) | |
| Rear autofocus | Phase detection autofocus | - | Yes | |
| Rear flash | LED | LED | LED | |
| Front camera | 5-megapixel (f/2.4) | 16-megapixel | 5-megapixel (f/2.2) | |
| Front flash | - | Yes | - | |
| software | ||||
| Operating system | Android 7.1 | Android 6.0 | Android 6.0 | |
| Skin | Color OS | Funtouch 3.0 | Funtouch OS 3.0 | |
| connectivity | ||||
| Wi-Fi | Yes | Yes | Yes | |
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 b/g/n | - | |
| GPS | Yes | Yes | Yes | |
| Bluetooth | Yes, v 4.00 | Yes, v 4.00 | Yes | |
| NFC | No | No | No | |
| Infrared | No | No | No | |
| USB OTG | Yes | Yes | Yes | |
| Micro-USB | Yes | - | Yes | |
| Headphones | 3.5mm | Yes | 3.5mm | |
| FM | Yes | Yes | Yes | |
| Number of SIMs | 2 | 2 | 2 | |
| Wi-Fi Direct | No | No | No | |
| Mobile High-Definition Link (MHL) | No | No | No | |
| sim 1 | ||||
| SIM Type | Nano-SIM | Micro-SIM | Micro-SIM | |
| GSM/CDMA | GSM | - | GSM | |
| 3G | Yes | Yes | Yes | |
| 4G/ LTE | Yes | Yes | Yes | |
| sim 2 | ||||
| SIM Type | Nano-SIM | Nano-SIM | - | |
| GSM/CDMA | GSM | - | - | |
| 3G | Yes | No | No | |
| 4G/ LTE | Yes | Yes | No | |
| sensors | ||||
| Compass/ Magnetometer | Yes | No | Yes | |
| Proximity sensor | Yes | Yes | Yes | |
| Accelerometer | Yes | Yes | Yes | |
| Ambient light sensor | Yes | Yes | Yes | |
| Gyroscope | No | No | Yes | |
| Barometer | No | No | No | |
| Temperature sensor | No | No | No | |
| ratings | ||||
| Overall NDTV Rating | - | Read Review | Read Review | |
| Design Rating | - | |||
| Display Rating | - | |||
| Software Rating | - | |||
| Performance Rating | - | |||
| Battery Life Rating | - | |||
| Camera Rating | - | |||
| Value for Money Rating | - | |||
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