Compare phones
| Global Score | |
| 85.2 | 88 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-11-15 | 2020-08-06 |
| 6.40 x 3.03 x 0.31 inches | 6.27 x 2.93 x 0.37 inches |
| 6.46 ounces | 7.16 ounces |
| Bubblegum pink, Caviar black and Lemonade blue | Mirage black and Mirage blue |
| Glass and Metal | -- |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2220 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 392 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Samsung 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 | |
| 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 | |
| 24.00 MP + 24.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm 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 |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.45 | 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3800mAh Li - Polymer Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 7.52 |
| 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 has an overall score of 88, which is a bit better than Galaxy A9 (2018)'s global score of 85.2. Samsung Galaxy M31s is a newer cellphone than the Galaxy A9 (2018), although it is a bit heavier and thicker. Galaxy M31s has a little faster CPU than Galaxy A9 (2018). They have the same number of cores and a 6 GB RAM memory.
Samsung Galaxy M31s counts with a bit sharper display than Samsung Galaxy A9 (2018), because it has a little bit higher resolution of 1080 x 2400, a bit higher screen density and a little bit bigger display. The Samsung Galaxy M31s features a superior camera than Galaxy A9 (2018), because although it has a tinier diafragm aperture which is not favorable for shooting photos and video in poorly lited situations, and they both have the same 30 fps video frame rate and the same video definition, the Samsung Galaxy M31s also counts with a lot more mega-pixels back-facing camera and a lot bigger sensor taking lot higher quality pictures and videos.
The Samsung Galaxy A9 (2018) and the Samsung Galaxy M31s feature quite similar memory for applications, games, photos and videos, both have equal internal storage and an external SD slot that supports a maximum of 512 GB. Samsung Galaxy M31s counts with a really longer battery performance than Galaxy A9 (2018), because it has a 6000mAh battery capacity against 3800mAh.
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