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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 | 6.30-inch | 5.50-inch | ||
| Processor | MediaTek Helio P60 | Qualcomm Snapdragon 625 | ||
| Front Camera | 16-megapixel | 5-megapixel | ||
| Rear Camera | 16-megapixel + 2-megapixel | 13-megapixel | ||
| RAM | 4GB | 4GB | ||
| Storage | 64GB | 64GB | ||
| Battery Capacity | 3500mAh | 4100mAh | ||
| OS | Android Oreo | Android 6.0 | ||
| Resolution | 1080x2340 pixels | 1080x1920 pixels | ||
| general | ||||
| Brand | Oppo | Xiaomi | ||
| Model | F9 | Redmi Note 4 | ||
| Release date | August 1, 2018 | August 1, 2016 | ||
| Launched in India | Yes | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 156.70 x 74.00 x 7.90 | 151.00 x 76.00 x 8.30 | ||
| Weight (g) | 169.00 | 175.00 | ||
| Battery capacity (mAh) | 3500 | 4100 | ||
| Colours | Sunrise Red, Twilight Blue, Starry Purple | Gold, Grey, Matte Black | ||
| Removable battery | - | No | ||
| display | ||||
| Screen size (inches) | 6.30 | 5.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x2340 pixels | 1080x1920 pixels | ||
| Aspect ratio | 19.5:9 | 16:9 | ||
| Pixels per inch (PPI) | - | 401 | ||
| hardware | ||||
| Processor | 2GHz octa-core | 2GHz octa-core | ||
| Processor make | MediaTek Helio P60 (MT6771) | Qualcomm Snapdragon 625 | ||
| RAM | 4GB | 4GB | ||
| Internal storage | 64GB | 64GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 256 | 128 | ||
| camera | ||||
| Rear camera | 16-megapixel (f/1.8) + 2-megapixel (f/2.4) | 13-megapixel (f/2.0, 1.12-micron) | ||
| Rear flash | Yes | Dual LED | ||
| Front camera | 16-megapixel | 5-megapixel (f/2.0) | ||
| Rear autofocus | - | Phase detection autofocus | ||
| software | ||||
| Operating system | Android Oreo | Android 6.0 | ||
| Skin | Color OS 5.2 | MIUI 8 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/g/n | ||
| GPS | Yes | Yes | ||
| Bluetooth | 4.20 | Yes, v 4.10 | ||
| USB OTG | Yes | Yes | ||
| Micro-USB | Yes | Yes | ||
| Headphones | 3.5mm | 3.5mm | ||
| Number of SIMs | 2 | 2 | ||
| NFC | - | No | ||
| Infrared | - | Yes | ||
| FM | - | Yes | ||
| Wi-Fi Direct | - | No | ||
| Mobile High-Definition Link (MHL) | - | No | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | Nano-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| sensors | ||||
| Fingerprint sensor | Yes | Yes | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | - | Yes | ||
| Barometer | - | No | ||
| Temperature sensor | - | No | ||