Compare phones
| Global Score | |
| 76.7 | 81.3 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 10 |
| 2021-05-27 | 2020-04-27 |
| 6.23 x 2.96 x 0.33 inches | 6.27 x 2.88 x 0.34 inches |
| 6.70 ounces | 6.53 ounces |
| Moonlight White, Neptune Blue and Space Black, | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Glass and Plastic | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.3 inches | 6.4 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 411 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | MediaTek Helio P65 MT6768 chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali G52 MC2 GPU | Mali-G52 MC2 GPU |
| 9.09 | 9.09 |
| 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 | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 11 | 10.89 |
| 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 | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| 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 |
Comparison review
The Samsung Galaxy A31 has an overall score of 81.3, which is slightly better than the Xiaomi Redmi Note 8 2021's 76.7 global score. Both of these phones have Android OS (operating system), but Samsung Galaxy A31 has the previous 10 version and Xiaomi Redmi Note 8 2021 has Android 11 version. Samsung Galaxy A31 is an older and just a little thicker cellphone than the Xiaomi Redmi Note 8 2021, but Samsung was able to build it just a little lighter anyway.
Xiaomi Redmi Note 8 2021 and Samsung Galaxy A31 have extremely similar displays, although the Samsung Galaxy A31 also has a just a bit higher pixels density, a slightly higher resolution of 1080 x 2400px and a bit larger screen. Samsung Galaxy A31 and Xiaomi Redmi Note 8 2021 count with extremely similar CPUs, they have a 4 GB RAM and a Octa-Core processor.
The Xiaomi Redmi Note 8 2021 counts with a bit better camera than Galaxy A31, and although they both have a same size back camera sensor, the same 1920x1080 video definition, the same 30 fps video frame rates and the same resolution back-facing camera, the Xiaomi Redmi Note 8 2021 also has a larger diafragm aperture to capture better photography in low-light environments.
Samsung Galaxy A31 has more storage to store more apps and games than Xiaomi Redmi Note 8 2021, and although they both have equal 64 GB internal memory, the Samsung Galaxy A31 also has a slot for SD memory cards that supports up to 512 GB. The Galaxy A31 counts with improved battery life than Xiaomi Redmi Note 8 2021, because it has 5000mAh of battery capacity.
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