Compare phones
| Global Score | |
| 88 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11 |
| 2020-08-06 | 2021-01-29 |
| 6.27 x 2.93 x 0.37 inches | 5.97 x 2.80 x 0.31 inches |
| 7.16 ounces | 6.03 ounces |
| Mirage black and Mirage blue | Gray, Phantom pink, Violet and White |
| -- | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.5 inches | 6.2 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 888 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 GPU |
| 9.36 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 12.00 MP + 10.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (960 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 | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 5.92 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy S21 is slightly better than the Galaxy M31s, with a 91.8 score against 88. The Samsung Galaxy S21 is a thinner and lighter device than Galaxy M31s, even though both were released only 6 months apart. Both of these devices come with the same Android 11 OS (operating system), so they should provide the same operating system features.
Galaxy S21 features a brighter screen than Samsung Galaxy M31s, because although it has a little bit smaller display, and they both have an equal 1080 x 2400px resolution, the Galaxy S21 also counts with a quite greater pixel quantity per inch in the display. The Galaxy M31s has a much bigger memory capacity to store more games and applications than Samsung Galaxy S21, and although they both have exactly the same 128 GB internal memory, the Galaxy M31s also has a slot for an SD memory card that holds a maximum of 512 GB.
The Samsung Galaxy S21 has just a bit better hardware performance than Galaxy M31s, and although they both have a Octa-Core processing unit, the Samsung Galaxy S21 also has a larger amount of RAM memory. Samsung Galaxy M31s counts with a superior camera than Samsung Galaxy S21, and although they both have a same size aperture and the same (4K) video resolution, the Samsung Galaxy M31s also has better video frame rates, a back-facing camera with a lot better resolution and a bigger camera sensor shooting higher quality videos and pictures.
The Galaxy M31s counts with a really longer battery life than Galaxy S21, because it has 6000mAh of battery capacity.
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