Compare phones
| Global Score | |
| 78 | 81.3 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2018-07-27 | 2020-04-27 |
| 6.25 x 2.97 x 0.29 inches | 6.27 x 2.88 x 0.34 inches |
| 5.93 ounces | 6.53 ounces |
| Black, Blue, Gold, Pink and Red | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Aluminum | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 2160 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 411 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | MediaTek Helio P65 MT6768 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 512 GPU | Mali-G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 12.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 9.79 | 10.89 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3010mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 6.8 |
| 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 | -- |
Comparison review
The Galaxy A31 is slightly better than Xiaomi Mi A2, having an 81.3 score against 78. Even though Galaxy A31 is newer than the Xiaomi Mi A2, it is a little bit heavier and somewhat thicker. Galaxy A31 has a screen that is just as good as the Xiaomi Mi A2 one, although the Galaxy A31 also has a bit higher resolution of 1080 x 2400px, a little more pixels per inch of screen and a little bit larger display.
Xiaomi Mi A2 features a little faster CPU than Galaxy A31, and although they both have a Octa-Core CPU, the Xiaomi Mi A2 also has a greater amount of RAM memory. Samsung Galaxy A31 has a much better camera than Xiaomi Mi A2, because although it has a smaller aperture which is not nice for taking photographs or video in low-light situations, and they both have the same 30 frames per second video frame rate and the same video definition, the Samsung Galaxy A31 also counts with a camera in the back with way more MP and a much larger back camera sensor taking lot better quality pictures and videos.
The Samsung Galaxy A31 counts with a quite bigger memory capacity to store more games and applications than Xiaomi Mi A2, because although it has only 64 GB internal storage, it also counts with an external memory card slot that admits a maximum of 512 GB. The Galaxy A31 features a much better battery lifetime than Xiaomi Mi A2, because it has 5000mAh of battery capacity against 3010mAh.
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