Compare phones
| Global Score | |
| 82.1 | 86.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 11, 10 |
| 2018-08-27 | 2020-03-05 |
| 6.39 x 3.03 x 0.30 inches | 6.27 x 2.96 x 0.35 inches |
| 6.74 ounces | 6.74 ounces |
| Black and White | Black, Blue and Red |
| Glass and Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.4 inches |
| 2220 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 392 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Exynos 9611 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 512 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.36 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.34 | 11.74 |
| Camera | |
| 16.00 MP + 24.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.59 inches (1/1.7") 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 |
| 10.01 | 12.1 |
| 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3700mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy M31 is a bit better than Galaxy A8 Star, having an 86.5 score against 82.1. The Samsung Galaxy M31 is a thicker device than Galaxy A8 Star, but both weight 6.74oz. Both of these devices have Android operating system, but the Samsung Galaxy M31 has older 11 version and Galaxy A8 Star has Android 9.0 Pie.
The Galaxy M31 counts with a little faster processor than Galaxy A8 Star. Both have 8 cpu cores and 6 GB of RAM memory. The Samsung Galaxy M31 has a bit sharper display than Galaxy A8 Star, because it has a just a bit greater pixel density, a bit larger screen and a bit higher 1080 x 2340 pixels resolution.
Galaxy M31 features a way better camera than Samsung Galaxy A8 Star, because although it has a tinier diafragm aperture which is not nice for shooting photos and video in low-light environments, and they both have the same 30 frames per second video frame rates and the same (4K) video quality, the Galaxy M31 also counts with a much bigger back-facing camera sensor shooting much higher quality photographs and a lot higher resolution back facing camera.
The Samsung Galaxy M31 has a slightly better storage capacity for games and applications than Galaxy A8 Star, and although they both have the same 64 GB internal memory capacity, the Samsung Galaxy M31 also has a slot for external memory cards that admits a maximum of 512 GB. The Galaxy M31 has a much better battery duration than Galaxy A8 Star, because it has 6000mAh of battery capacity.
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