Compare phones
| Global Score | |
| 88 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2020-08-06 | 2020-06-19 |
| 6.27 x 2.93 x 0.37 inches | 6.44 x 2.96 x 0.35 inches |
| 7.16 ounces | 6.77 ounces |
| Mirage black and Mirage blue | Black, Blue, Red and White |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 405 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Samsung Exynos 850 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Mali-G72 MP3 GPU | Mali-G76 GPU |
| 9.36 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 9.84 |
| Camera | |
| 64.00 MP + 32.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | -- |
| 12.1 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy M31s is much better than the Galaxy A21s, with an 88 score against 77.7. Both of these devices come with Android OS (operating system), but the Samsung Galaxy M31s has 11 version and Galaxy A21s has Android 10, providing the user some additional features. The Samsung Galaxy M31s construction is just a bit heavier and a little bit thicker than the Galaxy A21s.
Samsung Galaxy M31s counts with a bit superior processing unit than Galaxy A21s, and although they both have 8 CPU cores, the Samsung Galaxy M31s also has 3 GB more RAM memory. The Samsung Galaxy M31s has a brighter screen than Samsung Galaxy A21s, and although they both have a screen of the same size, the Samsung Galaxy M31s also has a way higher resolution of 1080 x 2400 and a higher count of pixels per inch of screen.
The Samsung Galaxy M31s counts with a way bigger storage to install games and applications than Samsung Galaxy A21s, and although they both have a SD memory slot that holds a maximum of 512 GB, the Samsung Galaxy M31s also has 96 GB more internal storage capacity. The Galaxy M31s features a better camera than Samsung Galaxy A21s, because it has a lot higher (4K) video resolution, a camera with a much higher 64 megapixels resolution, a bigger camera aperture and a bigger camera sensor taking more light and vivid colors.
The Galaxy M31s has longer battery performance than Galaxy A21s, because it has 6000mAh of battery capacity instead of 5000mAh.
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