| ratings |
| Overall NDTV Rating | Read Review | Read Review | Read Review | Read Review |
| Design Rating | | | | |
| Display Rating | | | | |
| Software Rating | | | | |
| Performance Rating | | | | |
| Battery Life Rating | | | | |
| Camera Rating | | | | |
| Value for Money Rating | | | | |
| key specs |
| Display | 6.20-inch | 6.26-inch | 6.30-inch | 6.23-inch |
| Front Camera | 16-megapixel | 20-megapixel + 2-megapixel | 16-megapixel | 25-megapixel |
| Rear Camera | 13-megapixel + 2-megapixel | 12-megapixel + 5-megapixel | 16-megapixel + 2-megapixel | 16-megapixel |
| RAM | 4GB | 4GB | 4GB | 4GB |
| Storage | 64GB | 64GB | 64GB | 64GB |
| Battery Capacity | 4230mAh | 4000mAh | 3500mAh | 3400mAh |
| OS | Android 8.1 | Android | Android Oreo | Android 8.1 |
| Processor | - | Qualcomm Snapdragon 636 | MediaTek Helio P60 | MediaTek Helio P60 |
| Resolution | - | 1080x2280 pixels | 1080x2340 pixels | 1080x2280 pixels |
| general |
| Brand | Oppo | Xiaomi | Oppo | Oppo |
| Model | A7 | Redmi Note 6 Pro | F9 | F7 |
| Release date | November 1, 2018 | September 28, 2018 | August 1, 2018 | March 1, 2018 |
| Launched in India | Yes | - | Yes | Yes |
| Form factor | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
| Body type | Plastic | - | - | - |
| Dimensions (mm) | 155.90 x 75.40 x 8.10 | 157.91 x 76.38 x 8.26 | 156.70 x 74.00 x 7.90 | 156.00 x 75.30 x 7.80 |
| Weight (g) | 168.00 | - | 169.00 | 158.00 |
| Battery capacity (mAh) | 4230 | 4000 | 3500 | 3400 |
| Removable battery | No | No | - | No |
| Colours | Glaring Gold, Glaze Blue | Black, Blue, Rose Gold | Sunrise Red, Twilight Blue, Starry Purple | Diamond Black, Moonlight Silver, Solar Red, |
| SAR value | 1.37 | 1.05 | - | 1.27 |
| Fast charging | - | Quick Charge 3.0 | - | - |
| Wireless charging | - | No | - | - |
| display |
| Screen size (inches) | 6.20 | 6.26 | 6.30 | 6.23 |
| Touchscreen | Yes | Yes | Yes | Yes |
| Aspect ratio | 19.5:9 | 19:9 | 19.5:9 | 19:9 |
| Resolution | - | 1080x2280 pixels | 1080x2340 pixels | 1080x2280 pixels |
| Protection type | - | - | - | Gorilla Glass |
| Pixels per inch (PPI) | - | - | - | 405 |
| hardware |
| Processor make | Qualcomm Snapdragon 450 | Qualcomm Snapdragon 636 | MediaTek Helio P60 (MT6771) | MediaTek Helio P60 (MT6771) |
| RAM | 4GB | 4GB | 4GB | 4GB |
| Internal storage | 64GB | 64GB | 64GB | 64GB |
| Expandable storage | Yes | Yes | Yes | Yes |
| Expandable storage type | microSD | microSD | microSD | microSD |
| Expandable storage up to (GB) | 256 | - | 256 | 256 |
| Dedicated microSD slot | Yes | No | - | - |
| Processor | - | octa-core | 2GHz octa-core | octa-core (4x2GHz + 4x2GHz) |
| camera |
| Rear camera | 13-megapixel (f/2.2) + 2-megapixel (f/2.4) | 12-megapixel (f/1.9, 1.4-micron) + 5-megapixel | 16-megapixel (f/1.8) + 2-megapixel (f/2.4) | 16-megapixel (f/1.8) |
| Rear autofocus | Yes | Yes | - | Phase detection autofocus |
| Rear flash | Yes | Yes | Yes | LED |
| Front camera | 16-megapixel | 20-megapixel (f/2.0, 1.8-micron) + 2-megapixel | 16-megapixel | 25-megapixel (f/2.0) |
| Front autofocus | No | - | - | - |
| Front flash | No | - | - | No |
| software |
| Operating system | Android 8.1 | Android | Android Oreo | Android 8.1 |
| Skin | ColorOS 5.2 | MIUI | Color OS 5.2 | ColorOS 5.0 |
| connectivity |
| Wi-Fi | Yes | Yes | Yes | Yes |
| Wi-Fi standards supported | 802.11 a/b/g/n | - | 802.11 a/b/g/n/ac | 802.11 b/g/n/ac |
| GPS | Yes | Yes | Yes | Yes |
| Bluetooth | Yes, v 4.20 | Yes, v 5.00 | 4.20 | Yes, v 4.20 |
| USB OTG | Yes | - | Yes | Yes |
| Micro-USB | Yes | Yes | Yes | - |
| Headphones | 3.5mm | - | 3.5mm | 3.5mm |
| FM | Yes | - | - | Yes |
| Number of SIMs | 2 | 2 | 2 | 2 |
| Active 4G on both SIM cards | Yes | Yes | - | - |
| NFC | - | No | - | No |
| Infrared | - | - | - | No |
| Wi-Fi Direct | - | - | - | Yes |
| sim 1 |
| GSM/CDMA | GSM | GSM | GSM | GSM |
| 3G | Yes | Yes | Yes | Yes |
| 4G/ LTE | Yes | Yes | Yes | Yes |
| SIM Type | - | Nano-SIM | Nano-SIM | Nano-SIM |
| sim 2 |
| GSM/CDMA | GSM | GSM | GSM | GSM |
| 3G | Yes | Yes | Yes | Yes |
| 4G/ LTE | Yes | Yes | Yes | Yes |
| SIM Type | - | Nano-SIM | Nano-SIM | Nano-SIM |
| sensors |
| Face unlock | Yes | - | - | - |
| Fingerprint sensor | Yes | Yes | Yes | Yes |
| Compass/ Magnetometer | Yes | - | Yes | Yes |
| Proximity sensor | Yes | Yes | Yes | Yes |
| Accelerometer | Yes | Yes | Yes | Yes |
| Ambient light sensor | Yes | - | Yes | Yes |
| Gyroscope | Yes | - | - | Yes |