Compare phones
| Global Score | |
| 86.5 | 78.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10, 9.0 Pie, 8.1 Oreo |
| 2020-03-05 | 2019-02-05 |
| 6.27 x 2.96 x 0.35 inches | 6.16 x 2.93 x 0.35 inches |
| 6.74 ounces | 6.56 ounces |
| Black, Blue and Red | Charcoal black and Ocean blue |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 409 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | Samsung Exynos 7 Octa 7904 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-G71 MP2 GPU |
| 9.36 | 8.91 |
| 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 | |
| 64.00 MP + 32.00 MP | 13.00 MP + 8.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | 12.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.32 inches (1/3.1") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 12.1 | 9.02 |
| 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 | |
| 6000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M31 is a little bit better than Galaxy M20, with a score of 86.5 against 78.9. The Samsung Galaxy M31 is a a little heavier device than Galaxy M20, but they have the same thickness. Both of these phones come with Android OS (Operating System), but the Samsung Galaxy M31 has the newer 11 version while Galaxy M20 has Android 10, so it counts with some extra features and optimized performance.
The Samsung Galaxy M31 has a little bit better looking screen than Samsung Galaxy M20, because although it has a bit lower display density, and they both have the same exact 1080 x 2340 resolution, the Samsung Galaxy M31 also counts with a little bigger screen. Galaxy M20 features as much memory to install applications and games as the Samsung Galaxy M31 one, they have a SD memory card expansion slot that allows a maximum of 512 GB and equal internal memory.
The Galaxy M31 features a bit better hardware performance than Samsung Galaxy M20, and although they both have 8 CPU cores, the Galaxy M31 also has 2 GB more RAM. The Samsung Galaxy M31 counts with better battery lifetime than Galaxy M20, because it has a 20% bigger battery capacity. The Galaxy M31 features a lot better camera than Samsung Galaxy M20, because it has a back-facing camera with lot more mega-pixels, a much better 3840x2160 (4K) video resolution, a lot bigger back-facing camera sensor which offers a way higher image and video quality and a larger aperture for better images and video in low-light environments.
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