Compare phones
| Global Score | |
| 81.3 | 83.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-04-27 | 2018-03-16 |
| 6.27 x 2.88 x 0.34 inches | 5.81 x 2.70 x 0.33 inches |
| 6.53 ounces | 5.75 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray |
| Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| -- | $ 158.00 |
| Display / Screen | |
| 6.4 inches | 5.8 inches |
| 2400 x 1080 pixels | 2960 x 1440 pixels |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.9 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G52 MC2 GPU | Adreno 630 GPU |
| 9.09 | 9.54 |
| 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 | |
| 48.00 MP + 20.00 MP | 12.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.50 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.89 | 10.23 |
| 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 | |
| 5000mAh Li - Polymer Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 4.96 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S9 has a global score of 83.3, which is just a bit better than Galaxy A31's 81.3 general score. The Galaxy S9 body is lighter and just a bit thinner than Galaxy A31, even though it was released 2 years before. Galaxy S9 has a bit better performance than Galaxy A31. They have the same number of cores and a 4 GB RAM memory.
Samsung Galaxy S9 features a bit better display than Galaxy A31, because although it has a little bit smaller display, it also counts with a better display density and a better resolution of 1440 x 2960 pixels. The Galaxy A31 has a slightly better camera than Samsung Galaxy S9, because although it has slower video frame rates and a lot smaller camera aperture, and they both have the same video definition, the Galaxy A31 also counts with a way larger camera sensor taking much higher quality videos and photographs and a way more mega-pixels back facing camera.
The Samsung Galaxy A31 counts with a bit more storage capacity for apps and games than Galaxy S9, and although they both have equal internal memory, the Samsung Galaxy A31 also has a SD extension slot that supports up to 512 GB. The Galaxy A31 has a much longer battery life than Galaxy S9, because it has a 5000mAh battery size.
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