Compare phones
| Global Score | |
| 76.7 | 81.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 10, 8.0 Oreo | Android 10 |
| 2018-06-28 | 2020-04-27 |
| 6.27 x 2.98 x 0.32 inches | 6.27 x 2.88 x 0.34 inches |
| 6.24 ounces | 6.53 ounces |
| Black, Blue, Gold and Pink | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Plastic | Plastic |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 1480 x 720 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 274 pixels per inch | 411 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 450 SDM450 chipset | MediaTek Helio P65 MT6768 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G52 MC2 GPU |
| 8.91 | 9.09 |
| 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 | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.46 | 10.89 |
| 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 | |
| 3500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy A31 is slightly better than the Samsung Galaxy J8, with an 81.3 score against 76.7. Although Galaxy A31 is newer than Samsung Galaxy J8, it's just a bit thicker and just a little bit heavier. Both of these devices use the same Android 10 OS (Operating System), so you shouldn't notice any differences regarding that.
Galaxy A31 counts with a better looking screen than Galaxy J8, because it has a greater amount of pixels per inch in the display, a way better 1080 x 2400 resolution and a little larger screen. Samsung Galaxy A31 counts with a bit more storage to store more apps and games than Samsung Galaxy J8, and although they both have exactly the same 64 GB internal memory, the Samsung Galaxy A31 also has an external memory card slot that supports up to 512 GB.
The Samsung Galaxy A31 counts with a bit better CPU than Samsung Galaxy J8. Both have a Octa-Core CPU and a 4 GB RAM. The Galaxy A31 features a better camera than Galaxy J8, because although it has a smaller camera aperture which is not nice for capturing photos and/or video in poorly lited environments, and they both have the same video frame rate and the same (Full HD) video definition, the Galaxy A31 also counts with a back facing camera with a much higher 48 mega-pixels resolution and a way bigger back camera sensor.
Samsung Galaxy A31 features a really longer battery life than Galaxy J8, because it has a 5000mAh battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.