Compare phones
| Global Score | |
| 79.2 | 86.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-07-24 | 2020-03-05 |
| 6.04 x 2.83 x 0.33 inches | 6.27 x 2.96 x 0.35 inches |
| 6.13 ounces | 6.74 ounces |
| Blue, Gray and White | Black, Blue and Red |
| Glass (Corning Gorilla Glass 5) and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.1 inches | 6.4 inches |
| 1560 x 720 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 282 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 665 chipset | Exynos 9611 chipset |
| Kryo 260, 64-bit, 11 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 |
| Adreno 610 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.36 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.18 | 11.74 |
| Camera | |
| 48.00 MP + 32.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.43 inches (1/2.3") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.44 | 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4030mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| 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
The Galaxy M31 is just a bit better than the Xiaomi Mi A3, with an 86.5 score against 79.2. Galaxy M31's body is a little bit heavier and just a bit thicker than Xiaomi Mi A3. These phones come with the same Android 11 OS (Operating System), so both should give you all the same OS features. Samsung Galaxy M31 has a bit more powerful processing unit than Xiaomi Mi A3, and although they both have the same number of cores, the Samsung Galaxy M31 also has a larger amount of RAM.
Samsung Galaxy M31 features a sharper display than Xiaomi Mi A3, because it has a higher pixels number in each inch of display, a way higher 1080 x 2340 resolution and a quite bigger display. Xiaomi Mi A3 has a quite bigger storage to install applications and games than Samsung Galaxy M31, because although it has an external memory slot that holds 256 GB smaller, it also counts with more internal storage capacity.
The Galaxy M31 captures a bit better photographs and videos than Xiaomi Mi A3, and although they both have a F1.8 aperture, the same video frame rate and the same 3840x2160 (4K) video resolution, the Galaxy M31 also has a back camera with much more mega pixels and a way larger sensor capturing much better quality photos.
The Galaxy M31 has a much better battery life than Xiaomi Mi A3, because it has a 6000mAh battery capacity instead of 4030mAh.
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