Compare phones
| Global Score | |
| 83.3 | 88 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-03-16 | 2020-08-06 |
| 5.81 x 2.70 x 0.33 inches | 6.27 x 2.93 x 0.37 inches |
| 5.75 ounces | 7.16 ounces |
| Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray | Mirage black and Mirage blue |
| Aluminum and Glass (Corning Gorilla Glass 5) | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 158.00 | -- |
| Display / Screen | |
| 5.8 inches | 6.5 inches |
| 2960 x 1440 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 568 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.9 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Samsung Exynos 9611 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 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 630 GPU | Mali-G72 MP3 GPU |
| 9.54 | 9.36 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.34 | 14.14 |
| Camera | |
| 12.00 MP + 8.00 MP | 64.00 MP + 32.00 MP |
| f/1.50 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.23 | 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 | |
| 3000mAh Li - Ion Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M31s is a little bit better than Galaxy S9, getting a global score of 88 against 83.3. The Galaxy M31s design is a lot newer, but thicker and somewhat heavier than the Galaxy S9. The Galaxy S9 features just a bit better screen than Galaxy M31s, because although it has a quite smaller screen, it also counts with a greater number of pixels per display inch and a higher resolution of 1440 x 2960 pixels.
The Samsung Galaxy M31s features a much greater memory to install applications and games or saving photos and videos than Samsung Galaxy S9, because it has a SD extension slot that allows a maximum of 512 GB and 64 GB more internal storage capacity. Galaxy S9 counts with a little faster CPU than Samsung Galaxy M31s, although it has a lower amount of RAM, they both have a Octa-Core processor.
The Samsung Galaxy M31s counts with a very superior battery lifetime than Galaxy S9, because it has a 6000mAh battery size. The Galaxy M31s shoots much better pictures and videos than Galaxy S9, because although it has slower video frame rates and a smaller diafragm aperture which is not favorable for taking pictures in low light situations, and they both have the same 3840x2160 (4K) video resolution, the Galaxy M31s also counts with a back-facing camera with a way better resolution and a lot larger camera sensor.
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