Compare phones
| Global Score | |
| 81.3 | 76.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 10, 8.0 Oreo |
| 2020-04-27 | 2018-06-28 |
| 6.27 x 2.88 x 0.34 inches | 6.27 x 2.98 x 0.32 inches |
| 6.53 ounces | 6.24 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Black, Blue, Gold and Pink |
| Plastic | Plastic |
| Display / Screen | |
| 6.4 inches | 6 inches |
| 2400 x 1080 pixels | 1480 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 274 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Qualcomm Snapdragon 450 SDM450 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G52 MC2 GPU | Adreno 506 GPU |
| 9.09 | 8.91 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 10.78 |
| Camera | |
| 48.00 MP + 20.00 MP | 16.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.89 | 9.46 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.44 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A31 has a score of 81.3, which is slightly better than the Samsung Galaxy J8's global score of 76.7. These phones include the same Android 10 OS (operating system), so both of them should provide identical OS features. Although Galaxy A31 is newer than the Samsung Galaxy J8, it is just a little thicker and just a bit heavier.
Samsung Galaxy A31 has a brighter display than Galaxy J8, because it has a higher pixel density, a much better resolution of 1080 x 2400 and a little bit larger screen. The Galaxy A31 features a slightly bigger memory for games and applications than Galaxy J8, and although they both have equal 64 GB internal memory capacity, the Galaxy A31 also has a SD memory slot that supports a maximum of 512 GB.
The Galaxy A31 counts with a bit superior CPU than Samsung Galaxy J8. Both have a Octa-Core CPU and 4 GB of RAM memory. The Galaxy A31 features a much better battery performance than Galaxy J8, because it has a 5000mAh battery capacity instead of 3500mAh. The Galaxy A31 has a better camera than Galaxy J8, because although it has a tinier aperture, and they both have the same video frame rates and the same video quality, the Galaxy A31 also counts with a lot larger camera sensor taking lot better quality pictures and a camera with lot more mega pixels.
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