Compare phones
| Global Score | |
| 79 | 81.3 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11, 10 | Android 10 |
| 2020-04-07 | 2020-04-27 |
| 6.53 x 3.02 x 0.35 inches | 6.27 x 2.88 x 0.34 inches |
| 7.37 ounces | 6.53 ounces |
| Aurora blue, Glacier white and Interstellar grey | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Glass (Corning Gorilla Glass 5) | Plastic |
| Scratch-Resistant Glass | -- |
| $ 249.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 393 pixels per inch | 411 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | MediaTek Helio P65 MT6768 chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 618 GPU | Mali-G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 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 |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 11.55 | 10.89 |
| 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, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5020mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 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 |
Comparison review
Galaxy A31 has a score of 81.3, which is slightly better than the Xiaomi Redmi Note 9S's overall score of 79. The Galaxy A31 construction is just a little thinner and lighter than Xiaomi Redmi Note 9S, although they were only released with a few months difference. These phones work with Android operating system, but the Galaxy A31 has the older 10 version while Xiaomi Redmi Note 9S has Android 11.
The Samsung Galaxy A31 counts with just a bit better looking screen than Xiaomi Redmi Note 9S, because although it has a quite smaller display, and they both have the same exact resolution of 1080 x 2400, the Samsung Galaxy A31 also counts with a bit more pixels per inch in the display. The Xiaomi Redmi Note 9S features a bit better hardware performance than Samsung Galaxy A31. Both of them have the same RAM amount and the same number of cores.
Xiaomi Redmi Note 9S and Samsung Galaxy A31 count with very similar memory for games and applications, they have the same 64 GB internal memory and an external memory card slot that admits up to 512 GB. The Xiaomi Redmi Note 9S and the Samsung Galaxy A31 both feature incredibly similar batteries duration, although the Samsung Galaxy A31 has 5000mAh of battery capacity against 5020mAh.
The Xiaomi Redmi Note 9S counts with just a bit better camera than Galaxy A31, and although they both have a 0.5 inches back camera sensor and a back facing camera with a 48 mega pixels, the Xiaomi Redmi Note 9S also has a larger aperture to capture better photos and videos in poorly lited situations and a way higher video quality.
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