Compare phones
| Global Score | |
| 77.7 | 86.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 11, 10 |
| 2020-06-19 | 2020-03-05 |
| 6.44 x 2.96 x 0.35 inches | 6.27 x 2.96 x 0.35 inches |
| 6.77 ounces | 6.74 ounces |
| Black, Blue, Red and White | Black, Blue and Red |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.4 |
| Performance | |
| Samsung Exynos 850 chipset | Exynos 9611 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.36 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.84 | 11.74 |
| Camera | |
| 48.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.78 | 12.1 |
| 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 | |
| 5000mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M31 has a global score of 86.5, which is better than Galaxy A21s's 77.7 general score. Galaxy M31's design has the same thickness than the Galaxy A21s, but it is just a little lighter. Both of these phones use Android OS (operating system), but Galaxy M31 has a newer 11 version while Galaxy A21s has Android 10, providing some extra features and performance enhancements.
Samsung Galaxy M31 features a little bit better processing power than Galaxy A21s, and although they both have the same number of cores, the Samsung Galaxy M31 also has 3 GB more RAM memory. Samsung Galaxy M31 features a much better looking screen than Samsung Galaxy A21s, because although it has a little bit smaller screen, it also counts with a higher amount of pixels per inch of display and a way better 1080 x 2340 resolution.
The Galaxy M31 shoots much clearer videos and photos than Galaxy A21s, because it has a bigger camera sensor shooting better quality photos, a much better 3840x2160 (4K) video resolution, a much higher 64 megapixels resolution camera and a larger aperture. Galaxy M31 has a bigger storage for apps and games than Samsung Galaxy A21s, and although they both have a slot for an external memory card that allows a maximum of 512 GB, the Galaxy M31 also has 64 GB internal memory capacity.
Samsung Galaxy M31 features superior battery lifetime than Galaxy A21s, because it has a 20 percent larger battery size.
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