Compare phones
| Global Score | |
| 75.4 | 83.2 |
| Basic Information | |
| Blackberry | Xiaomi |
| 2018-07-06 | 2019-03-06 |
| 5.96 x 2.83 x 0.33 inches | 6.20 x 2.94 x 0.30 inches |
| 5.34 ounces | 6.10 ounces |
| Black, Gray and Red | Black, Blue and Purple |
| Aluminum | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 4.5 inches | 6.4 inches |
| 1620 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | AMOLED |
| 433 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Qualcomm Snapdragon 855 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 512 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 13.18 | 10.1 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (960 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 and HSUPA |
| Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 3500mAh Li - Ion Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.44 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| 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
Xiaomi Mi 9 is better than the BlackBerry KEY2, getting an 83.2 score against 75.4. Even though the Xiaomi Mi 9 and the BlackBerry KEY2 were released only 8 months apart, the Xiaomi Mi 9 design is heavier but also just a little bit thinner than the BlackBerry KEY2. The Xiaomi Mi 9 counts with a bit better display than BlackBerry KEY2, because although it has a just a bit worse display density, it also counts with a lot bigger screen and a better resolution of 1080 x 2340 pixels.
Xiaomi Mi 9 has a bit better performance than BlackBerry KEY2. They have the same number of cores and the same RAM amount. Xiaomi Mi 9 counts with a way better camera than BlackBerry KEY2, and although they both have the same video quality and a same size diafragm aperture, the Xiaomi Mi 9 also has a lot more mega pixels back-facing camera, higher 60 fps video frame rate and a lot larger back camera sensor which gives a much better image and video quality.
BlackBerry KEY2 features a much better memory for games and applications than Xiaomi Mi 9, and although they both have the same 128 GB internal storage capacity, the BlackBerry KEY2 also has an external memory slot that allows up to 256 GB. The BlackBerry KEY2 has a little longer battery duration than Xiaomi Mi 9, because it has a 3500mAh battery size.
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