Compare phones
| Global Score | |
| 86.5 | 82.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 9.0 Pie, 8.0 Oreo |
| 2020-03-05 | 2018-08-27 |
| 6.27 x 2.96 x 0.35 inches | 6.39 x 3.03 x 0.30 inches |
| 6.74 ounces | 6.74 ounces |
| Black, Blue and Red | Black and White |
| Plastic and Plastic | Glass and Metal |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2340 x 1080 pixels | 2220 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 392 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 512 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 11.74 | 11.34 |
| Camera | |
| 64.00 MP + 32.00 MP | 16.00 MP + 24.00 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 12.1 | 10.01 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 3700mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.68 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy M31 has a global score of 86.5, which is a bit better than Samsung Galaxy A8 Star's 82.1 overall score. Samsung Galaxy M31's body has the same weight than the Samsung Galaxy A8 Star, but it is thicker. Both phones we are comparing come with Android operating system, but the Samsung Galaxy M31 has the previous 11 version while Samsung Galaxy A8 Star has Android 9.0 Pie.
Galaxy M31 features a bit more powerful CPU than Galaxy A8 Star. Both have a Octa-Core processing unit and a 6 GB RAM memory. The Samsung Galaxy M31 counts with a bit more vivid display than Samsung Galaxy A8 Star, because it has a just a little more pixels per inch of screen, a little larger display and a little bit higher resolution of 1080 x 2340px.
The Samsung Galaxy M31 features a way better camera than Galaxy A8 Star, because although it has a tinier aperture, and they both have the same 3840x2160 video resolution and the same video frame rate, the Samsung Galaxy M31 also counts with a much bigger sensor and a lot more MP back camera. The Samsung Galaxy M31 counts with just a bit more storage for games and applications than Galaxy A8 Star, and although they both have the same 64 GB internal storage capacity, the Samsung Galaxy M31 also has an external memory card slot that holds up to 512 GB.
The Galaxy M31 has a way better battery duration than Samsung Galaxy A8 Star, because it has a 6000mAh battery size.
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