Compare phones
| Global Score | |
| 84.1 | 88 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10 |
| 2020-03-23 | 2020-08-06 |
| 6.26 x 2.96 x 0.35 inches | 6.27 x 2.93 x 0.37 inches |
| 6.63 ounces | 7.16 ounces |
| Midnight blue and Raven black | Mirage black and Mirage blue |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | Samsung Exynos 9611 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.36 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 48.00 MP + 20.00 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 |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.55 | 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 | |
| 6000mAh Li - Polymer Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M31s is a bit better than Samsung Galaxy M21, having an 88 score against 84.1. Samsung Galaxy M31s is an a little bit heavier and a little thicker phone than Samsung Galaxy M21. Both phones we compare here come with the same Android 11 OS, so both should provide you very similar OS features.
Galaxy M31s has a bit more powerful CPU than Samsung Galaxy M21, and although they both have 8 processing cores, the Galaxy M31s also has a larger amount of RAM. The Samsung Galaxy M21 counts with a bit sharper display than Galaxy M31s, although it has a little smaller display, a quite lower 1080 x 2340 resolution and a little worse screen pixel density.
Samsung Galaxy M31s counts with a much greater storage capacity to store more games and applications than Galaxy M21, and although they both have a SD memory slot that admits up to 512 GB, the Samsung Galaxy M31s also has more internal memory capacity. The Galaxy M31s features a battery life that is just as good as Samsung Galaxy M21's battery lifetime.
The Samsung Galaxy M31s has a bit better camera than Galaxy M21, and although they both have the same video frame rate and the same (4K) video definition, the Samsung Galaxy M31s also has a bigger aperture to take better low-light images and videos, a back camera with way more MP and a bigger back-facing camera sensor taking higher quality videos and pictures.
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