Compare phones
| Global Score | |
| 79.2 | 86.5 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-01-06 | 2020-03-05 |
| 5.87 x 2.78 x 0.33 inches | 6.27 x 2.96 x 0.35 inches |
| 6.07 ounces | 6.74 ounces |
| Black, Blue, Gold and Orchid grey | Black, Blue and Red |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.6 inches | 6.4 inches |
| 2220 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 441 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.3 | 8.4 |
| Performance | |
| Samsung Exynos 5 Octa 7885 chipset | Exynos 9611 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 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 GPU | Mali-G72 MP3 GPU |
| 9.18 | 9.36 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 11.74 |
| Camera | |
| 16.00 MP + 16.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 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 |
| 9.24 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3000mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 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 M31 is a bit better than Galaxy A8 (2018), getting an 86.5 score against 79.2. Although Galaxy M31 is much newer than the Galaxy A8 (2018), it's a little bit heavier and just a little thicker. Galaxy M31 counts with a little better hardware performance than Galaxy A8 (2018), and although they both have a Octa-Core CPU, the Galaxy M31 also has more RAM.
Galaxy M31 counts with a bit sharper screen than Galaxy A8 (2018), because although it has a just a little lower display density, it also counts with a quite better 1080 x 2340px resolution and a quite bigger display. Samsung Galaxy M31 has slightly more storage to install applications and games or saving photos and videos than Galaxy A8 (2018), and although they both have exactly the same internal storage, the Samsung Galaxy M31 also has a SD memory card expansion slot that holds a maximum of 512 GB.
Samsung Galaxy M31 captures a lot better photographs and videos than Galaxy A8 (2018), because although it has a tinier camera aperture which is not recommended for taking photographs or videos in low-light situations, it also counts with a lot more mega-pixels back facing camera and a way better (4K) video resolution.
Samsung Galaxy M31 has a much longer battery life than Galaxy A8 (2018), because it has a 100% greater battery capacity.
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