Compare phones
| Global Score | |
| 88 | 85.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2020-08-06 | 2018-11-15 |
| 6.27 x 2.93 x 0.37 inches | 6.40 x 3.03 x 0.31 inches |
| 7.16 ounces | 6.46 ounces |
| Mirage black and Mirage blue | Bubblegum pink, Caviar black and Lemonade blue |
| -- | Glass and Metal |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 2400 x 1080 pixels | 2220 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 392 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| Samsung 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 | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 14.14 |
| Camera | |
| 64.00 MP + 32.00 MP | 24.00 MP + 24.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm 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 |
| 1280 x 720 (480 fps) (HD) slow motion video | -- |
| 12.1 | 10.45 |
| 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 Battery | 3800mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.76 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy M31s is a little bit better than the Galaxy A9 (2018), with a global score of 88 against 85.2. The Samsung Galaxy M31s is a newer phone than Galaxy A9 (2018), although it's a bit heavier and somewhat thicker. Samsung Galaxy M31s features a little better hardware performance than Samsung Galaxy A9 (2018). They have a Octa-Core processing unit and the same RAM memory amount.
Galaxy M31s has a bit better looking screen than Samsung Galaxy A9 (2018), because it has a little bit higher 1080 x 2400 pixels resolution, a just a little greater pixels number per screen inch and a little bigger display. Galaxy A9 (2018) and Galaxy M31s both have very similar storage capacity to install games and applications, both have the same 128 GB internal memory and a slot for SD memory cards that admits up to 512 GB.
Samsung Galaxy M31s has a really longer battery performance than Samsung Galaxy A9 (2018), because it has 6000mAh of battery capacity. The Galaxy M31s shoots better photographs and videos than Galaxy A9 (2018), because although it has a tinier aperture which is not recommended for taking photographs and videos in low light situations, and they both have the same 3840x2160 video definition and the same video frame rate, the Galaxy M31s also counts with a much bigger sensor taking much higher quality videos and photos and a lot higher 64 MP resolution camera.
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