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- Samsung Galaxy M21s vs Samsung Galaxy J7 Duo
Samsung Galaxy M21s vs Samsung Galaxy J7 Duo comparison
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| key specs | ||||
| Display | 6.40-inch | 5.50-inch | ||
| Processor | Samsung Exynos 9611 | Samsung Exynos 7885 | ||
| Front Camera | 32-megapixel | 8-megapixel | ||
| Rear Camera | 64-megapixel + 8-megapixel + 5-megapixel | 13-megapixel + 5-megapixel | ||
| RAM | 4GB | 4GB | ||
| Storage | 64GB | 32GB | ||
| Battery Capacity | 6000mAh | 3000mAh | ||
| OS | Android 10 | Android Oreo | ||
| Resolution | 1080x2340 pixels | 720x1280 pixels | ||
| general | ||||
| Brand | Samsung | Samsung | ||
| Model | Galaxy M21s | Galaxy J7 Duo | ||
| Release date | November 5, 2020 | March 1, 2018 | ||
| Launched in India | No | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 159.20 x 75.10 x 8.90 | 153.50 x 77.20 x 8.20 | ||
| Weight (g) | 191.00 | 174.00 | ||
| Battery capacity (mAh) | 6000 | 3000 | ||
| Fast charging | Proprietary | - | ||
| Colours | Black, Blue | Black and Gold | ||
| display | ||||
| Screen size (inches) | 6.40 | 5.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x2340 pixels | 720x1280 pixels | ||
| Aspect ratio | - | 16:9 | ||
| Pixels per inch (PPI) | - | 267 | ||
| hardware | ||||
| Processor | 8 MHz | octa-core (2x2.2GHz + 6x1.6GHz) | ||
| Processor make | Samsung Exynos 9611 | Samsung Exynos 7885 | ||
| RAM | 4GB | 4GB | ||
| Internal storage | 64GB | 32GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 512 | 256 | ||
| Dedicated microSD slot | Yes | - | ||
| camera | ||||
| Rear camera | 64-megapixel (f/1.8) + 8-megapixel (f/2.2) + 5-megapixel (f/2.2) | 13-megapixel (f/1.9) + 5-megapixel (f/1.9) | ||
| Front camera | 32-megapixel (f/2.0) | 8-megapixel (f/1.9) | ||
| Rear autofocus | - | Yes | ||
| Rear flash | - | LED | ||
| Front flash | - | LED | ||
| software | ||||
| Operating system | Android 10 | Android Oreo | ||
| Skin | One UI Core | - | ||
| 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 | - | ||
| Number of SIMs | 2 | 2 | ||
| NFC | - | No | ||
| FM | - | Yes | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | - | ||
| GSM/CDMA | GSM | - | ||
| 3G | Yes | - | ||
| 4G/ LTE | Yes | - | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | - | ||
| GSM/CDMA | GSM | - | ||
| 3G | Yes | - | ||
| 4G/ LTE | Yes | - | ||
| sensors | ||||
| Fingerprint sensor | Yes | Yes | ||
| Compass/ Magnetometer | Yes | No | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | - | ||
| Gyroscope | Yes | - | ||
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