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| ratings | ||||
| Overall NDTV Rating | Read Review | - | ||
| Design Rating | - | |||
| Display Rating | - | |||
| Software Rating | - | |||
| Performance Rating | - | |||
| Battery Life Rating | - | |||
| Camera Rating | - | |||
| Value for Money Rating | - | |||
| key specs | ||||
| Display | 5.20-inch | 5.50-inch | ||
| Processor | Qualcomm Snapdragon 435 | 1.3GHz quad-core | ||
| Front Camera | 16-megapixel | 2-megapixel | ||
| Rear Camera | 13-megapixel | 8-megapixel | ||
| RAM | 3GB | - | ||
| Storage | 32GB | - | ||
| Battery Capacity | 2900mAh | 2500mAh | ||
| OS | Android 6.0 | Android 4.3 | ||
| Resolution | 720x1280 pixels | 540x960 pixels | ||
| general | ||||
| Brand | Oppo | Alcatel | ||
| Model | A57 | One Touch POP C9 | ||
| Release date | November 1, 2016 | January 1, 2014 | ||
| Launched in India | Yes | - | ||
| Form factor | Touchscreen | - | ||
| Dimensions (mm) | 149.10 x 72.90 x 7.65 | - | ||
| Weight (g) | 147.00 | - | ||
| Battery capacity (mAh) | 2900 | 2500 | ||
| Removable battery | No | Yes | ||
| Colours | Rose Gold, Gold | - | ||
| SAR value | 1.31 | - | ||
| display | ||||
| Screen size (inches) | 5.20 | 5.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 720x1280 pixels | 540x960 pixels | ||
| Aspect ratio | 16:9 | - | ||
| hardware | ||||
| Processor | 1.4GHz octa-core | 1.3GHz quad-core | ||
| Processor make | Qualcomm Snapdragon 435 | - | ||
| RAM | 3GB | - | ||
| Internal storage | 32GB | - | ||
| Expandable storage | Yes | No | ||
| Expandable storage type | microSD | - | ||
| Expandable storage up to (GB) | 256 | - | ||
| camera | ||||
| Rear camera | 13-megapixel (f/2.2) | 8-megapixel | ||
| Rear autofocus | Phase detection autofocus | - | ||
| Rear flash | LED | LED | ||
| Front camera | 16-megapixel (f/2.0, 1.12-micron) | 2-megapixel | ||
| Front autofocus | Yes | - | ||
| software | ||||
| Operating system | Android 6.0 | Android 4.3 | ||
| Skin | ColorOS 3.0 | - | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 b/g/n | - | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes, v 4.10 | Yes | ||
| NFC | No | No | ||
| Infrared | No | No | ||
| USB OTG | Yes | No | ||
| Micro-USB | Yes | - | ||
| Headphones | 3.5mm | 3.5mm | ||
| FM | Yes | No | ||
| Number of SIMs | 2 | 1 | ||
| Wi-Fi Direct | No | No | ||
| Mobile High-Definition Link (MHL) | No | No | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | - | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | No | ||
| 4G/ LTE | Yes | No | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | - | ||
| GSM/CDMA | GSM | - | ||
| 3G | Yes | - | ||
| 4G/ LTE | Yes | - | ||
| sensors | ||||
| Fingerprint sensor | Yes | - | ||
| Compass/ Magnetometer | Yes | No | ||
| Proximity sensor | Yes | No | ||
| Accelerometer | Yes | No | ||
| Ambient light sensor | Yes | No | ||
| Gyroscope | Yes | No | ||
| Barometer | No | No | ||
| Temperature sensor | No | No | ||
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