Compare phones
| Global Score | |
| 86.5 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11, 10, 9.0 Pie |
| 2020-03-05 | 2019-07-24 |
| 6.27 x 2.96 x 0.35 inches | 6.04 x 2.83 x 0.33 inches |
| 6.74 ounces | 6.13 ounces |
| Black, Blue and Red | Blue, Gray and White |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.1 inches |
| 2340 x 1080 pixels | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 282 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.3 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 665 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 610 GPU |
| 9.36 | 9.09 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 13.18 |
| Camera | |
| 64.00 MP + 32.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | 0.43 inches (1/2.3") 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 (240 fps) (HD) slow motion video |
| 12.1 | 11.44 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | 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 | FM Radio |
Comparison review
Galaxy M31 is a bit better than Xiaomi Mi A3, getting a general score of 86.5 against 79.2. These phones include the same Android 11 OS, so both of them should provide the user all the same operating system features. Although it's the best phone in this comparison, Galaxy M31 is a just a bit thicker and a bit heavier phone than the Xiaomi Mi A3.
Galaxy M31 features a bit faster processing unit than Xiaomi Mi A3, and although they both have a Octa-Core processing unit, the Galaxy M31 also has a larger amount of RAM memory. The Galaxy M31 counts with a sharper display than Xiaomi Mi A3, because it has a little larger screen, a greater display density and a lot higher resolution of 1080 x 2340.
Samsung Galaxy M31 shoots a little bit better videos and photos than Xiaomi Mi A3, and although they both have the same 3840x2160 (4K) video resolution, the same camera aperture and the same video frame rates, the Samsung Galaxy M31 also has a way larger back-facing camera sensor and a back facing camera with a lot higher 64 megapixels resolution.
The Xiaomi Mi A3 counts with a bigger memory to install applications and games or saving photos and videos than Galaxy M31, because although it has an external memory slot that holds 256 GB smaller, it also counts with 64 GB more internal memory. Galaxy M31 features a much longer battery life than Xiaomi Mi A3, because it has a 6000mAh battery capacity.
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