Compare phones
| Global Score | |
| 81.3 | 85.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-04-27 | 2018-11-15 |
| 6.27 x 2.88 x 0.34 inches | 6.40 x 3.03 x 0.31 inches |
| 6.53 ounces | 6.46 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Bubblegum pink, Caviar black and Lemonade blue |
| Plastic | Glass and Metal |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2400 x 1080 pixels | 2220 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 392 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G52 MC2 GPU | Adreno 512 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 48.00 MP + 20.00 MP | 24.00 MP + 24.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 10.89 | 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 | |
| 5000mAh Li - Polymer Battery | 3800mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 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 |
Comparison review
Samsung Galaxy A9 (2018) is a bit better than Samsung Galaxy A31, getting a global score of 85.2 against 81.3. The Samsung Galaxy A9 (2018) design is a little bit thinner and a bit lighter than the Samsung Galaxy A31, although it was released about a year before. Samsung Galaxy A9 (2018) features a bit better processor than Samsung Galaxy A31, and although they both have a Octa-Core processor, the Samsung Galaxy A9 (2018) also has more RAM memory.
Samsung Galaxy A31 features just a bit better display than Galaxy A9 (2018), because it has a quite larger screen, a slightly higher 1080 x 2400 resolution and a just a bit higher display pixel density. The Samsung Galaxy A31 takes a little bit better photos and videos than Samsung Galaxy A9 (2018), because although it has a tinier aperture, and they both have the same video resolution and the same 30 frames per second video frame rates, the Samsung Galaxy A31 also counts with a back facing camera with lot more mega-pixels and a much larger camera sensor capturing more light and vivid colors.
Galaxy A9 (2018) features a lot bigger memory capacity for games and applications than Samsung Galaxy A31, and although they both have a slot for external memory cards that allows a maximum of 512 GB, the Galaxy A9 (2018) also has 64 GB more internal memory capacity. The Samsung Galaxy A31 features improved battery performance than Galaxy A9 (2018), because it has 5000mAh of battery capacity.
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