Compare phones
| Global Score | |
| 75.4 | 76.1 |
| Basic Information | |
| Blackberry | Samsung |
| -- | Android 10 |
| 2018-07-06 | 2020-06-29 |
| 5.96 x 2.83 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 5.34 ounces | 6.81 ounces |
| Black, Gray and Red | Black |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 4.5 inches | 6.5 inches |
| 1620 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 433 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Mediatek Helio P35 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 512 GPU | PowerVR GE8320 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.18 | 9.84 |
| Camera | |
| 12.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.57 | 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 |
| Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3500mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 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 | FM Radio |
Comparison review
Samsung Galaxy A21 has a score of 76.1, which is just a bit better than the BlackBerry KEY2's global score of 75.4. Samsung Galaxy A21's design is newer and a bit thinner than BlackBerry KEY2's, but it is also incredibly heavier. The Galaxy A21 and BlackBerry KEY2 feature extremely similar processors, and although the Galaxy A21 has a smaller amount of RAM, they both have a Octa-Core processing unit.
BlackBerry KEY2 features a more vivid screen than Samsung Galaxy A21, because although it has a really smaller display, it also counts with a lot more pixels per inch of display and a better resolution of 1080 x 1620 pixels. The BlackBerry KEY2 captures slightly better videos and photos than Samsung Galaxy A21, because although it has a back camera with way less mega pixels resolution, and they both have a same size camera aperture, the BlackBerry KEY2 also counts with a larger back camera sensor and a lot higher 3840x2160 (4K) video quality.
BlackBerry KEY2 features a much better storage to install applications and games or saving photos and videos than Samsung Galaxy A21, because although it has a SD memory slot that allows 256 GB smaller, it also counts with 128 GB internal memory capacity. Galaxy A21 features just a little better battery performance than BlackBerry KEY2, because it has a 4000mAh battery size.
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