Compare phones
| Global Score | |
| 75.4 | 86.5 |
| Basic Information | |
| Blackberry | Samsung |
| -- | Android 11, 10 |
| 2018-07-06 | 2020-03-05 |
| 5.96 x 2.83 x 0.33 inches | 6.27 x 2.96 x 0.35 inches |
| 5.34 ounces | 6.74 ounces |
| Black, Gray and Red | Black, Blue and Red |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 4.5 inches | 6.4 inches |
| 1620 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 433 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Exynos 9611 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 512 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.36 |
| 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 | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.57 | 12.1 |
| 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 | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 7.52 |
| 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 | FM Radio |
Comparison review
Galaxy M31 has an overall score of 86.5, which is much better than BlackBerry KEY2's 75.4 overall score. Even though the Galaxy M31 is newer than BlackBerry KEY2, it's extremely heavier and a little thicker. Galaxy M31 counts with a bit sharper screen than BlackBerry KEY2, because although it has a little bit lower screen density, it also counts with a way larger display and a better resolution of 1080 x 2340px.
BlackBerry KEY2 features a greater memory to install games and applications than Galaxy M31, because although it has a SD extension slot that holds 256 GB smaller, it also counts with 128 GB internal storage. The Galaxy M31 counts with a little bit better processing power than BlackBerry KEY2. Both have a Octa-Core processing unit and 6 GB of RAM memory.
Galaxy M31 shoots way better photos and videos than BlackBerry KEY2, and although they both have the same 30 fps video frame rate, a same size diafragm aperture and the same 3840x2160 video definition, the Galaxy M31 also has a much larger camera sensor taking more light and vivid colors and a much more mega-pixels camera.
Galaxy M31 features a much better battery duration than BlackBerry KEY2, because it has 6000mAh of battery capacity.
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