Compare phones
| Global Score | |
| 88 | 76.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10, 8.0 Oreo |
| 2020-08-06 | 2018-06-28 |
| 6.27 x 2.93 x 0.37 inches | 6.27 x 2.98 x 0.32 inches |
| 7.16 ounces | 6.24 ounces |
| Mirage black and Mirage blue | Black, Blue, Gold and Pink |
| -- | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 2400 x 1080 pixels | 1480 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 274 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 450 SDM450 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 506 GPU |
| 9.36 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 10.78 |
| Camera | |
| 64.00 MP + 32.00 MP | 16.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.36 inches (1/2.8") 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 | 9.46 |
| 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 | |
| 6000mAh Battery | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 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 | FM Radio |
Comparison review
The Samsung Galaxy M31s is better than the Galaxy J8, having an 88 score against 76.7. The Samsung Galaxy M31s body is notably newer than the Galaxy J8's, although it is thicker and somewhat heavier. Both of these devices work with Android OS (operating system), but Samsung Galaxy M31s has a more recent 11 version while Galaxy J8 has Android 10 version.
The Samsung Galaxy M31s features a bit more powerful processor than Galaxy J8, and although they both have the same number of cores, the Samsung Galaxy M31s also has more RAM memory. The Galaxy M31s has a better screen than Galaxy J8, because it has a way better 1080 x 2400 pixels resolution, a bit bigger screen and a better number of pixels per inch of screen.
Galaxy M31s counts with a very superior storage for games and applications than Galaxy J8, because it has a slot for an SD memory card that admits up to 512 GB and 128 GB internal memory. Samsung Galaxy M31s counts with a superior battery performance than Galaxy J8, because it has a 71 percent larger battery capacity.
The Galaxy M31s has a lot better camera than Samsung Galaxy J8, because although it has a tinier diafragm aperture, it also counts with a much better 3840x2160 (4K) video quality, a much larger back-facing camera sensor which gives a way higher photo and video quality and a lot better resolution back facing camera.
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