Compare phones
| Global Score | |
| 76.7 | 86.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11, 10 |
| 2021-05-27 | 2020-03-05 |
| 6.23 x 2.96 x 0.33 inches | 6.27 x 2.96 x 0.35 inches |
| 6.70 ounces | 6.74 ounces |
| Moonlight White, Neptune Blue and Space Black, | Black, Blue and Red |
| Glass and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Exynos 9611 chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 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 G52 MC2 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.36 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 11.74 |
| Camera | |
| 48.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 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 |
| 1280 x 720 (120 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M31 is much better than the Xiaomi Redmi Note 8 2021, getting an 86.5 score against 76.7. Both phones in this comparison review use the same Android 11 OS (Operating System), so both of them should give all the same operating system features. Although Galaxy M31 is better than Xiaomi Redmi Note 8 2021, we must tell that it is also an older, a little bit thicker and just a little bit heavier phone.
Galaxy M31 features a little bit better looking screen than Xiaomi Redmi Note 8 2021, because although it has a just a little worse amount of pixels per screen inch, and they both have an equal resolution of 1080 x 2340px, the Galaxy M31 also counts with a bit bigger screen. Galaxy M31 features a little better performance than Xiaomi Redmi Note 8 2021, and although they both have 8 cpu cores, the Galaxy M31 also has 2 GB more RAM memory.
Galaxy M31 features a better camera than Xiaomi Redmi Note 8 2021, and although they both have a F1.8 diafragm aperture, the Galaxy M31 also has a much better 3840x2160 (4K) video resolution, a much more megapixels back-facing camera and a bigger sensor capturing more light and vivid colors. Samsung Galaxy M31 features a quite bigger storage to store more apps and games than Xiaomi Redmi Note 8 2021, and although they both have equal internal memory, the Samsung Galaxy M31 also has a SD extension slot that admits up to 512 GB.
Samsung Galaxy M31 counts with a very superior battery performance than Xiaomi Redmi Note 8 2021, because it has 6000mAh of battery capacity.
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