Compare phones
| Global Score | |
| 81.3 | 79 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 11, 10 |
| 2020-04-27 | 2020-04-07 |
| 6.27 x 2.88 x 0.34 inches | 6.53 x 3.02 x 0.35 inches |
| 6.53 ounces | 7.37 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Aurora blue, Glacier white and Interstellar grey |
| Plastic | Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| -- | $ 249.00 |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 411 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G52 MC2 GPU | Adreno 618 GPU |
| 9.09 | 9.27 |
| 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 + 20.00 MP | 48.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.80 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.89 | 11.55 |
| 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 | |
| 5000mAh Li - Polymer Battery | 5020mAh 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
Samsung Galaxy A31 has a score of 81.3, which is a bit better than Xiaomi Redmi Note 9S's 79 overall score. Although Samsung Galaxy A31 and Xiaomi Redmi Note 9S were released with only a few months difference, Samsung Galaxy A31 is somewhat lighter and just a little thinner. Both devices in this comparison review have Android operating system, but Samsung Galaxy A31 has the older 10 version while Xiaomi Redmi Note 9S has Android 11 version.
The Xiaomi Redmi Note 9S counts with just a bit better performance than Samsung Galaxy A31. They have a 4 GB RAM memory and 8 cores. Galaxy A31 counts with a bit more vivid screen than Xiaomi Redmi Note 9S, because although it has a little bit smaller screen, and they both have the same exact 1080 x 2400px resolution, the Galaxy A31 also counts with a just a little higher screen density.
Xiaomi Redmi Note 9S features just a bit better camera than Galaxy A31, and although they both have a 0.5 inches sensor and a camera in the back with a 48 megapixels resolution, the Xiaomi Redmi Note 9S also has a way higher 3840x2160 video resolution and a larger aperture to take better photography in low-light situations.
The Galaxy A31 and the Xiaomi Redmi Note 9S have similar memory capacity to store more apps and games, they have equal internal storage and a SD memory slot that holds a maximum of 512 GB. Xiaomi Redmi Note 9S's battery performance is just as good as Samsung Galaxy A31's battery life, although the Xiaomi Redmi Note 9S also has a 0% more battery size.
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