Compare phones
| Global Score | |
| 75.8 | 86.5 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2017-01-13 | 2020-03-05 |
| 6.17 x 3.06 x 0.31 inches | 6.27 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.74 ounces |
| Black sky, Blue mist, Gold sand and Peach cloud | Black, Blue and Red |
| Aluminum and Glass (Corning Gorilla Glass 4) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 386 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.9 | 8.4 |
| Performance | |
| Samsung Exynos 7 Octa 7880 chipset | Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-T830 MP3 GPU | Mali-G72 MP3 GPU |
| 9 | 9.36 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 11.74 |
| Camera | |
| 16.00 MP + 16.00 MP | 64.00 MP + 32.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 0.59 inches (1/1.7") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.24 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3600mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M31 has an overall score of 86.5, which is better than the Galaxy A7 (2017)'s score of 75.8. Even though Samsung Galaxy M31 is notably newer than Galaxy A7 (2017), it is somewhat thicker and a bit heavier. Galaxy M31 features a bit better hardware performance than Galaxy A7 (2017), and although they both have the same number of cores, the Galaxy M31 also has a larger amount of RAM.
The Galaxy M31 counts with a bit better display than Galaxy A7 (2017), because it has a little bigger screen, a quite better resolution of 1080 x 2340 and a little bit higher pixel density. The Galaxy M31 has a lot bigger storage capacity to install applications and games than Galaxy A7 (2017), because it has more internal memory capacity and a slot for external memory cards that admits up to 512 GB.
Galaxy M31 counts with a superior battery life than Samsung Galaxy A7 (2017), because it has 6000mAh of battery capacity. Galaxy M31 takes way better videos and photos than Galaxy A7 (2017), because it has a back-facing camera with lot more megapixels, a much higher 3840x2160 (4K) video quality and a bigger diafragm aperture for better low light photos.
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