Compare phones
| Global Score | |
| 81.3 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 7.0 Nougat |
| 2020-04-27 | 2017-06-20 |
| 6.27 x 2.88 x 0.34 inches | 6.17 x 3.10 x 0.32 inches |
| 6.53 ounces | 6.31 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | 16 777 216 |
| Plastic | Aluminum |
| Display / Screen | |
| 6.4 inches | 5.7 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | IPS LCD |
| 411 pixels per inch | 386 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | MediaTek Helio P20 MT6757 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit, 16 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G52 MC2 GPU | Mali-T880 MP2 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 8.88 |
| Camera | |
| 48.00 MP + 20.00 MP | 13.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.89 | 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) and HSPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.1 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3300mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.28 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Galaxy A31 has a global score of 81.3, which is just a bit better than the Samsung Galaxy J7 Max's 76.1 overall score. Both phones in our current comparison include Android operating system, but the Galaxy A31 has the previous 10 version and Samsung Galaxy J7 Max has Android 7.0 Nougat version. The Galaxy A31 body is way newer, but just a little bit heavier and just a little thicker than the Samsung Galaxy J7 Max.
Galaxy A31 counts with just a bit better looking display than Galaxy J7 Max, because it has a little larger display, a slightly better resolution of 1080 x 2400 and a bit greater pixel number per display inch. The Samsung Galaxy A31 features a much bigger storage capacity to install games and applications than Samsung Galaxy J7 Max, because it has a slot for an external memory card that holds a maximum of 512 GB and 32 GB more internal storage.
Samsung Galaxy J7 Max features a little faster processing unit than Samsung Galaxy A31. Both of them have a 4 GB RAM memory and 8 CPU cores. The Galaxy A31 counts with a really longer battery performance than Galaxy J7 Max, because it has a 5000mAh battery size against 3300mAh. The Samsung Galaxy A31 features a lot better camera than Samsung Galaxy J7 Max, because although it has a tinier diafragm aperture, and they both have the same (Full HD) video resolution and the same 30 fps video frame rate, the Samsung Galaxy A31 also counts with a camera with way more MP.
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