Compare phones
| Global Score | |
| 88 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 7.0 Nougat |
| 2020-08-06 | 2017-06-20 |
| 6.27 x 2.93 x 0.37 inches | 6.17 x 3.10 x 0.32 inches |
| 7.16 ounces | 6.31 ounces |
| Mirage black and Mirage blue | 16 777 216 |
| -- | Aluminum |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.5 inches | 5.7 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 386 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| Samsung Exynos 9611 chipset | MediaTek Helio P20 MT6757 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit, 16 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-T880 MP2 GPU |
| 9.36 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 8.88 |
| Camera | |
| 64.00 MP + 32.00 MP | 13.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (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) and HSPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.1 |
| Battery Life | |
| 6000mAh Battery | 3300mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 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 |
| FM Radio | -- |
Comparison review
Galaxy M31s is much better than Galaxy J7 Max, getting an 88 score against 76.1. These devices use Android OS (Operating System), but the Galaxy M31s has the previous 11 version while Galaxy J7 Max has Android 7.0 Nougat. Galaxy M31s's body is a lot newer, but heavier and thicker than Galaxy J7 Max.
Galaxy M31s features a little faster CPU than Galaxy J7 Max, and although they both have 8 cores, the Galaxy M31s also has a higher amount of RAM memory. Galaxy M31s features a little more vivid display than Galaxy J7 Max, because it has a quite better 1080 x 2400 resolution, a little higher pixel density and a bit bigger display.
Galaxy M31s counts with a much better camera than Samsung Galaxy J7 Max, because although it has a tinier camera aperture which is worse for capturing pictures or video in low light situations, it also counts with a way better resolution camera in the back and a lot higher 3840x2160 video definition.
The Samsung Galaxy M31s features a much better memory capacity for apps and games than Galaxy J7 Max, because it has an external SD slot that admits a maximum of 512 GB and 96 GB more internal memory. The Galaxy M31s has a very superior battery life than Galaxy J7 Max, because it has a 6000mAh battery capacity instead of 3300mAh.
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