Compare phones
| Global Score | |
| 75.4 | 89 |
| Basic Information | |
| Blackberry | Xiaomi |
| -- | Android 11 |
| 2018-07-06 | 2021-08-10 |
| 5.96 x 2.83 x 0.33 inches | 6.40 x 2.97 x 0.31 inches |
| 5.34 ounces | 7.94 ounces |
| Black, Gray and Red | Ceramic Black, Ceramic White and Shadow Gray |
| Aluminum | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 4.5 inches | 6.7 inches |
| 1620 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | AMOLED |
| 433 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Qualcomm Snapdragon 888+ SM8350-AC chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 512 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| 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 | 108.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1920 x 1080 (480 fps) (Full HD) slow motion video |
| 9.57 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 3500mAh Li - Ion Battery | 4500mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.44 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Xiaomi Mi Mix 4 has an overall score of 89, which is much better than the BlackBerry KEY2's 75.4 general score. The Xiaomi Mi Mix 4 construction is incredibly newer and just a little thinner than BlackBerry KEY2's, although it's also much heavier. The BlackBerry KEY2 features a bit sharper screen than Xiaomi Mi Mix 4, because although it has a way smaller screen and a little bit worse 1080 x 1620 resolution, it also counts with a just a little better pixels density.
The BlackBerry KEY2 features a very superior memory for games and applications than Xiaomi Mi Mix 4, and although they both have the same internal storage capacity, the BlackBerry KEY2 also has an external SD slot that supports up to 256 GB. Xiaomi Mi Mix 4 counts with a bit better CPU than BlackBerry KEY2, and although they both have the same number of cores, the Xiaomi Mi Mix 4 also has more RAM memory.
Xiaomi Mi Mix 4 counts with longer battery life than BlackBerry KEY2, because it has 4500mAh of battery capacity against 3500mAh. The Xiaomi Mi Mix 4 has a very superior camera than BlackBerry KEY2, because although it has a smaller camera aperture which is not nice for capturing photos and videos in poorly lited environments, it also counts with a much bigger back-facing camera sensor, a way higher 7680x4320 video quality and a back camera with a way higher resolution.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.