Compare phones
| Global Score | |
| 86.5 | 82.4 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 9.0 Pie, 8.1 Oreo |
| 2020-03-05 | 2019-03-07 |
| 6.27 x 2.96 x 0.35 inches | 6.26 x 2.96 x 0.33 inches |
| 6.74 ounces | 6.14 ounces |
| Black, Blue and Red | Black and Blue |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2280 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 394 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | Samsung Exynos 7 Octa 7904 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Mali-G71 MP2 GPU |
| 9.36 | 9 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 64.00 MP + 32.00 MP | 13.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.32 inches (1/3.1") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 12.1 | 9.13 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M31 has a score of 86.5, which is slightly better than Galaxy M30's score of 82.4. Galaxy M31 is a newer device than the Galaxy M30, although it's a little bit thicker and a bit heavier. Both phones in our current comparison include Android OS (operating system), but Galaxy M31 has older 11 version and Galaxy M30 has Android 9.0 Pie.
The Samsung Galaxy M31 features a little bit better screen than Samsung Galaxy M30, and although they both have a same size screen, the Samsung Galaxy M31 also has a just a bit better pixel density and a little higher 1080 x 2340 pixels resolution. Samsung Galaxy M31 counts with a bit better processing power than Galaxy M30. Both have the same number of cores and the same RAM memory amount.
Samsung Galaxy M31 has a very superior camera than Galaxy M30, because it has a much bigger sensor, a way higher video definition, a bigger aperture and a way higher resolution back camera. Galaxy M30 features much more storage to store more games and applications than Samsung Galaxy M31, and although they both have a slot for an SD memory card that allows up to 512 GB, the Galaxy M30 also has 64 GB more internal memory capacity.
Galaxy M31 features superior battery performance than Galaxy M30, because it has a 20 percent more battery capacity.
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