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- Samsung Galaxy M21 (6GB RAM, 128GB) vs Oppo A57
Samsung Galaxy M21 (6GB RAM, 128GB) vs Oppo A57 comparison
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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 | 6.40-inch | 5.20-inch | ||
| Processor | Samsung Exynos 9611 | Qualcomm Snapdragon 435 | ||
| Front Camera | 20-megapixel | 16-megapixel | ||
| Rear Camera | 48-megapixel + 8-megapixel + 5-megapixel | 13-megapixel | ||
| RAM | 6GB | 3GB | ||
| Storage | 128GB | 32GB | ||
| Battery Capacity | 6000mAh | 2900mAh | ||
| OS | Android 10 | Android 6.0 | ||
| Resolution | 2340x1080 pixels | 720x1280 pixels | ||
| general | ||||
| Brand | Samsung | Oppo | ||
| Model | Galaxy M21 | A57 | ||
| Release date | March 18, 2020 | November 1, 2016 | ||
| Launched in India | Yes | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Thickness | 8.9 | - | ||
| Weight (g) | 188.00 | 147.00 | ||
| Battery capacity (mAh) | 6000 | 2900 | ||
| Removable battery | No | No | ||
| Fast charging | Proprietary | - | ||
| Wireless charging | No | - | ||
| Colours | Iceberg Blue, Midnight Blue, Raven Black | Rose Gold, Gold | ||
| Dimensions (mm) | - | 149.10 x 72.90 x 7.65 | ||
| SAR value | - | 1.31 | ||
| display | ||||
| Screen size (inches) | 6.40 | 5.20 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 2340x1080 pixels | 720x1280 pixels | ||
| Protection type | Gorilla Glass | - | ||
| Aspect ratio | 19.5:9 | 16:9 | ||
| hardware | ||||
| Processor | 1.7GHz octa-core (4x1.7GHz + 4x2.3GHz) | 1.4GHz octa-core | ||
| Processor make | Samsung Exynos 9611 | Qualcomm Snapdragon 435 | ||
| RAM | 6GB | 3GB | ||
| Internal storage | 128GB | 32GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 512 | 256 | ||
| camera | ||||
| Rear camera | 48-megapixel + 8-megapixel + 5-megapixel | 13-megapixel (f/2.2) | ||
| Rear autofocus | Yes | Phase detection autofocus | ||
| Rear flash | Yes | LED | ||
| Front camera | 20-megapixel | 16-megapixel (f/2.0, 1.12-micron) | ||
| Front flash | No | - | ||
| Front autofocus | - | Yes | ||
| software | ||||
| Operating system | Android 10 | Android 6.0 | ||
| Skin | One UI 2.0 | ColorOS 3.0 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 a/b/g | 802.11 b/g/n | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes | Yes, v 4.10 | ||
| USB Type-C | Yes | - | ||
| Headphones | 3.5mm | 3.5mm | ||
| Number of SIMs | 2 | 2 | ||
| NFC | - | No | ||
| Infrared | - | No | ||
| USB OTG | - | Yes | ||
| Micro-USB | - | Yes | ||
| FM | - | Yes | ||
| Wi-Fi Direct | - | No | ||
| Mobile High-Definition Link (MHL) | - | No | ||
| 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 | - | ||
| 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 | ||
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