Compare phones
| Global Score | |
| 76.1 | 81.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 10 |
| 2020-06-29 | 2020-04-27 |
| 6.61 x 3.02 x 0.32 inches | 6.27 x 2.88 x 0.34 inches |
| 6.81 ounces | 6.53 ounces |
| Black | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Plastic and Plastic | Plastic |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 411 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.1 |
| Performance | |
| Mediatek Helio P35 chipset | MediaTek Helio P65 MT6768 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| PowerVR GE8320 GPU | Mali-G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.84 | 11.74 |
| Camera | |
| 16.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.35 | 10.89 |
| 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| 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 is a little bit better than Samsung Galaxy A21, having a general score of 81.3 against 76.1. Even though Galaxy A31 and Samsung Galaxy A21 were released only 2 months apart, the Galaxy A31 body is a bit thicker but just a little lighter than Samsung Galaxy A21. Both devices in this comparison come with the same Android 10 OS, so you shouldn't see any difference regarding operating system features.
The Samsung Galaxy A31 has a better display than Samsung Galaxy A21, because although it has a quite smaller screen, it also counts with a lot better display density and a way better resolution of 1080 x 2400 pixels. Galaxy A31 counts with a bigger memory capacity for games and applications than Samsung Galaxy A21, and although they both have a slot for external memory cards that allows up to 512 GB, the Galaxy A31 also has 64 GB internal storage capacity.
Samsung Galaxy A21 counts with a little faster processor than Galaxy A31, although it has lesser RAM memory, they both have a Octa-Core processing unit. The Galaxy A31 has greater battery life than Samsung Galaxy A21, because it has a 5000mAh battery capacity. Galaxy A31 captures much clearer photographs and videos than Samsung Galaxy A21, because although it has a smaller camera aperture which is worse for low light captures and video, and they both have the same 1920x1080 video quality and the same 30 frames per second video frame rate, the Galaxy A31 also counts with a camera with much more megapixels and a lot bigger back-facing camera sensor.
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