Compare phones
| Global Score | |
| 75.4 | 81.3 |
| Basic Information | |
| Blackberry | Samsung |
| -- | Android 10 |
| 2018-07-06 | 2020-04-27 |
| 5.96 x 2.83 x 0.33 inches | 6.27 x 2.88 x 0.34 inches |
| 5.34 ounces | 6.53 ounces |
| Black, Gray and Red | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Aluminum | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 4.5 inches | 6.4 inches |
| 1620 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 433 pixels per inch | 411 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | MediaTek Helio P65 MT6768 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 512 GPU | Mali-G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.18 | 11.74 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.57 | 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 |
| Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3500mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 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 Samsung Galaxy A31 is just a bit better than the BlackBerry KEY2, with an 81.3 score against 75.4. Even though the Samsung Galaxy A31 is newer than the BlackBerry KEY2, it is somewhat heavier and a bit thicker. BlackBerry KEY2 features a slightly better looking display than Samsung Galaxy A31, because although it has a little worse resolution of 1080 x 1620 pixels and a way smaller display, it also counts with a bit higher quantity of pixels per inch in the screen.
BlackBerry KEY2 features just a bit better hardware performance than Samsung Galaxy A31, and although they both have a Octa-Core processing unit, the BlackBerry KEY2 also has 2 GB more RAM. BlackBerry KEY2 has a greater storage capacity for applications and games than Galaxy A31, because although it has an external SD slot that admits up to 256 GB against 512 GB, it also counts with 128 GB internal storage capacity.
Samsung Galaxy A31 counts with a very superior battery duration than BlackBerry KEY2, because it has a 43% greater battery size. Galaxy A31 captures much better videos and photos than BlackBerry KEY2, because although it has a smaller aperture which is not favorable for low-light captures and videos, and they both have the same 30 frames per second video frame rate and the same (Full HD) video quality, the Galaxy A31 also counts with a lot larger back-facing camera sensor providing a much better image quality and a back-facing camera with a much better resolution.
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