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- Redmi Note 9S vs Oppo A31 (2020)
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| key specs | ||||
| Display | 6.67-inch | 6.50-inch | ||
| Processor | Qualcomm Snapdragon 720G | MediaTek Helio P35 | ||
| Front Camera | 16-megapixel | 8-megapixel | ||
| Rear Camera | 48-megapixel + 8-megapixel + 5-megapixel + 2-megapixel | 12-megapixel + 2-megapixel + 2-megapixel | ||
| RAM | 4GB | 4GB | ||
| Storage | 64GB | 64GB | ||
| Battery Capacity | 5020mAh | 4230mAh | ||
| OS | Android 10 | Android 9 | ||
| Resolution | 1080x2400 pixels | 720x1600 pixels | ||
| general | ||||
| Brand | Xiaomi | Oppo | ||
| Model | Redmi Note 9S | A31 (2020) | ||
| Release date | March 23, 2020 | February 14, 2020 | ||
| Launched in India | Yes | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 165.70 x 76.60 x 8.80 | 163.90 x 75.50 x 8.30 | ||
| Weight (g) | 209.00 | 180.00 | ||
| Battery capacity (mAh) | 5020 | 4230 | ||
| Fast charging | Proprietary | - | ||
| Colours | Aurora Blue, Glacier White, Interstellar Grey | Mystery Black, Fantasy White | ||
| Body type | - | Plastic | ||
| Removable battery | - | No | ||
| display | ||||
| Screen size (inches) | 6.67 | 6.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x2400 pixels | 720x1600 pixels | ||
| Protection type | Gorilla Glass | - | ||
| Aspect ratio | 20:9 | 20:9 | ||
| hardware | ||||
| Processor | 2.3GHz octa-core | 2.3GHz octa-core | ||
| Processor make | Qualcomm Snapdragon 720G | MediaTek Helio P35 (MT6765) | ||
| RAM | 4GB | 4GB | ||
| Internal storage | 64GB | 64GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 512 | 256 | ||
| Dedicated microSD slot | Yes | Yes | ||
| camera | ||||
| Rear camera | 48-megapixel (f/1.79) + 8-megapixel + 5-megapixel + 2-megapixel | 12-megapixel (f/1.8) + 2-megapixel (f/2.4, 1.75-micron) + 2-megapixel (f/2.4, 1.75-micron) | ||
| Rear autofocus | Phase detection autofocus | Yes | ||
| Front camera | 16-megapixel | 8-megapixel (f/2.0) | ||
| Rear flash | - | Yes | ||
| Pop-Up Camera | - | No | ||
| Front autofocus | - | No | ||
| Front flash | - | No | ||
| software | ||||
| Operating system | Android 10 | Android 9 | ||
| Skin | MIUI 11 | ColorOS 6.1.2 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes, v 5.00 | Yes, v 5.00 | ||
| USB Type-C | Yes | - | ||
| Headphones | 3.5mm | 3.5mm | ||
| Number of SIMs | 2 | 2 | ||
| Wi-Fi Direct | Yes | - | ||
| Active 4G on both SIM cards | Yes | - | ||
| NFC | - | No | ||
| Micro-USB | - | Yes | ||
| FM | - | Yes | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | Nano-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 | ||||
| Face unlock | Yes | Yes | ||
| Fingerprint sensor | Yes | Yes | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | Yes | - | ||
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