Compare phones
| Global Score | |
| 78.9 | 86.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 10, 9.0 Pie, 8.1 Oreo | Android 11, 10 |
| 2019-02-05 | 2020-03-05 |
| 6.16 x 2.93 x 0.35 inches | 6.27 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.74 ounces |
| Charcoal black and Ocean blue | Black, Blue and Red |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 8.4 |
| Performance | |
| Samsung Exynos 7 Octa 7904 chipset | Exynos 9611 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G71 MP2 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.36 |
| 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 | |
| 13.00 MP + 8.00 MP | 64.00 MP + 32.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 12.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") sensor | 0.59 inches (1/1.7") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.02 | 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy M31 has an overall score of 86.5, which is slightly better than the Samsung Galaxy M20's 78.9 overall score. The Samsung Galaxy M31 is a just a bit heavier cellphone than the Samsung Galaxy M20, but they have the same thickness. These phones have Android OS, but Samsung Galaxy M31 has the newer 11 version and Samsung Galaxy M20 has Android 10 version.
The Galaxy M31 counts with a little more vivid screen than Samsung Galaxy M20, because although it has a little bit worse display pixel density, and they both have the same exact resolution of 1080 x 2340, the Galaxy M31 also counts with a bit bigger display. Samsung Galaxy M31 counts with as much storage capacity for games and applications as Samsung Galaxy M20, both have an external memory card slot that admits a maximum of 512 GB and equal internal storage capacity.
The Galaxy M31 has a bit better performance than Galaxy M20, and although they both have 8 CPU cores, the Galaxy M31 also has 2 GB more RAM memory. The Galaxy M31 shoots much better photographs and videos than Samsung Galaxy M20, because it has a bigger aperture to take better low light captures and video, a much higher (4K) video definition, a way larger camera sensor which gives a lot better photo and video quality and a way higher 64 megapixels resolution camera.
Samsung Galaxy M31 features greater battery lifetime than Galaxy M20, because it has a 6000mAh battery capacity instead of 5000mAh.
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