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| 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 | - | |||
| key specs | ||||
| Display | 5.00-inch | 5.00-inch | 5.50-inch | |
| Processor | MediaTek MT6737 | Qualcomm Snapdragon 435 | 1.2GHz quad-core | |
| Front Camera | 8-megapixel | 5-megapixel | 5-megapixel | |
| Rear Camera | 8-megapixel | 13-megapixel | 13-megapixel | |
| RAM | 2GB | 3GB | 2GB | |
| Storage | 16GB | 32GB | 16GB | |
| Battery Capacity | 2630mAh | 4100mAh | 3000mAh | |
| OS | Android 7.0 | Android 6.0.1 | Android 6.0 | |
| Resolution | 720x1280 pixels | 720x1280 pixels | 720x1280 pixels | |
| general | ||||
| Brand | Nokia | Xiaomi | Samsung | |
| Model | 3 | Redmi 4 | Galaxy On7 Pro | |
| Release date | February 1, 2017 | November 1, 2016 | July 1, 2016 | |
| Form factor | Touchscreen | Touchscreen | Touchscreen | |
| Dimensions (mm) | 143.40 x 71.40 x 8.48 | 139.30 x 69.90 x 8.65 | 151.80 x 77.50 x 8.20 | |
| Battery capacity (mAh) | 2630 | 4100 | 3000 | |
| Removable battery | No | No | Yes | |
| Colours | Silver White, Matte Black, Tempered Blue, Copper White | Gold, Black | - | |
| Launched in India | - | Yes | - | |
| Weight (g) | - | 150.00 | 172.00 | |
| display | ||||
| Screen size (inches) | 5.00 | 5.00 | 5.50 | |
| Touchscreen | Yes | Yes | Yes | |
| Resolution | 720x1280 pixels | 720x1280 pixels | 720x1280 pixels | |
| Protection type | - | Gorilla Glass | - | |
| Aspect ratio | - | 16:9 | - | |
| Pixels per inch (PPI) | - | 296 | - | |
| hardware | ||||
| Processor | 1.3GHz quad-core | 1.4GHz octa-core | 1.2GHz quad-core | |
| Processor make | MediaTek MT6737 | Qualcomm Snapdragon 435 | - | |
| RAM | 2GB | 3GB | 2GB | |
| Internal storage | 16GB | 32GB | 16GB | |
| Expandable storage | Yes | Yes | Yes | |
| Expandable storage type | microSD | microSD | microSD | |
| Expandable storage up to (GB) | 128 | 128 | 128 | |
| camera | ||||
| Rear camera | 8-megapixel | 13-megapixel | 13-megapixel | |
| Rear flash | LED | LED | LED | |
| Front camera | 8-megapixel | 5-megapixel | 5-megapixel | |
| software | ||||
| Operating system | Android 7.0 | Android 6.0.1 | Android 6.0 | |
| Skin | - | MIUI 8 | - | |
| connectivity | ||||
| Wi-Fi | Yes | Yes | Yes | |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 b/g/n | - | |
| GPS | Yes | Yes | Yes | |
| Bluetooth | Yes | Yes, v 4.10 | Yes, v 4.20 | |
| NFC | No | No | No | |
| Infrared | No | Yes | No | |
| USB OTG | Yes | Yes | No | |
| Headphones | 3.5mm | 3.5mm | 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 | |
| Micro-USB | - | Yes | - | |
| sim 1 | ||||
| SIM Type | Micro-SIM | Micro-SIM | Micro-SIM | |
| GSM/CDMA | GSM | GSM | GSM | |
| 3G | Yes | Yes | Yes | |
| 4G/ LTE | Yes | Yes | Yes | |
| sim 2 | ||||
| SIM Type | Micro-SIM | Nano-SIM | Micro-SIM | |
| GSM/CDMA | GSM | GSM | GSM | |
| 3G | Yes | Yes | Yes | |
| 4G/ LTE | Yes | Yes | Yes | |
| sensors | ||||
| Compass/ Magnetometer | No | Yes | No | |
| Proximity sensor | Yes | Yes | Yes | |
| Accelerometer | Yes | Yes | Yes | |
| Ambient light sensor | Yes | Yes | Yes | |
| Gyroscope | Yes | Yes | Yes | |
| Barometer | No | No | No | |
| Temperature sensor | No | No | No | |
| Fingerprint sensor | - | Yes | - | |
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