Compare phones
| Global Score | |
| 86.5 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2020-03-05 | 2020-06-19 |
| 6.27 x 2.96 x 0.35 inches | 6.44 x 2.96 x 0.35 inches |
| 6.74 ounces | 6.77 ounces |
| Black, Blue and Red | Black, Blue, Red and White |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 403 pixels per inch | 270 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.2 |
| Performance | |
| 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 | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 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 |
| 1920 x 1080 (240 fps) (Full 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 Li - Polymer 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
The Galaxy M31 is better than the Samsung Galaxy A21s, with a score of 86.5 against 77.7. These phones come with Android operating system, but Galaxy M31 has a more recent 11 version and Samsung Galaxy A21s has Android 10 version. Galaxy M31 is a a little bit lighter cellphone than Samsung Galaxy A21s, but both are equally thin.
Galaxy M31 has a little faster processor than Galaxy A21s, and although they both have the same number of cores, the Galaxy M31 also has 3 GB more RAM memory. Galaxy M31 has a much better looking display than Samsung Galaxy A21s, because although it has a little smaller display, it also counts with a higher number of pixels per inch of display and a lot better 1080 x 2340 resolution.
Samsung Galaxy M31 has a much better camera than Samsung Galaxy A21s, because it has a larger aperture to capture better low-light captures and video, a bigger sensor providing a higher image quality, a way better 3840x2160 (4K) video resolution and a lot more megapixels back-facing camera. The Samsung Galaxy M31 has a quite bigger memory capacity for games and applications than Samsung Galaxy A21s, and although they both have an external memory slot that allows a maximum of 512 GB, the Samsung Galaxy M31 also has 32 GB more internal storage.
The Samsung Galaxy M31 features better battery performance than Galaxy A21s, because it has 6000mAh of battery capacity.
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