Compare phones
| Global Score | |
| 81.3 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 10 |
| 2020-04-27 | 2020-06-29 |
| 6.27 x 2.88 x 0.34 inches | 6.61 x 3.02 x 0.32 inches |
| 6.53 ounces | 6.81 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Black |
| Plastic | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 411 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Mediatek Helio P35 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G52 MC2 GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 9.84 |
| Camera | |
| 48.00 MP + 20.00 MP | 16.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.89 | 9.35 |
| 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 | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| 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
The Galaxy A31 has a general score of 81.3, which is a bit better than Galaxy A21's 76.1 overall score. Although Galaxy A31 and Galaxy A21 were released only a few months apart, the Galaxy A31 design is just a little bit thicker but just a little bit lighter than Galaxy A21. Both devices in this comparison review include the same Android 10 operating system, so both of them should count with identical operating system features.
Galaxy A21 has a little faster processor than Galaxy A31, although it has a lower amount of RAM, they both have a Octa-Core CPU. The Samsung Galaxy A31 features a better display than Galaxy A21, because although it has a little smaller screen, it also counts with a much greater number of pixels per inch in the display and a lot better 1080 x 2400 resolution.
Galaxy A31 has a greater memory capacity to store more games and applications than Samsung Galaxy A21, and although they both have a SD memory slot that supports up to 512 GB, the Galaxy A31 also has 32 GB more internal storage capacity. Samsung Galaxy A31 counts with superior battery lifetime than Samsung Galaxy A21, because it has 5000mAh of battery capacity.
The Galaxy A31 features a superior camera than Samsung Galaxy A21, because although it has a smaller aperture, and they both have the same 1920x1080 video definition and the same 30 frames per second video frame rates, the Galaxy A31 also counts with a lot larger back-facing camera sensor capturing more light and vivid colors and a camera with a much better resolution.
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