Compare phones
| Global Score | |
| 76 | 89 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11 | Android 11 |
| 2021-04-02 | 2021-08-10 |
| 6.30 x 2.92 x 0.34 inches | 6.40 x 2.97 x 0.31 inches |
| 6.77 ounces | 7.94 ounces |
| Arctic Sky, Astral Black and Winter Mist | Ceramic Black, Ceramic White and Shadow Gray |
| Aluminum and Glass (Corning Gorilla Glass) | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | AMOLED |
| 405 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 888+ SM8350-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.63 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 48.00 MP + 16.00 MP | 108.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 23.00mm focal length | 24.00mm focal length |
| 0.71 inches (1/1.4") sensor | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (30 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (480 fps) (Full HD) slow motion video |
| 12.65 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 10.6 |
| Battery Life | |
| 4500mAh Battery | 4500mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.32 | 6.32 |
| Other Features | |
| Bluetooth 5.2 | 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 |
Comparison review
Xiaomi Mi Mix 4 has an overall score of 89, which is better than OnePlus 9's global score of 76. Xiaomi Mi Mix 4's design is heavier but just a little bit thinner than OnePlus 9, and they were only released 4 months apart. Both of these phones work with the same Android 11 OS. Xiaomi Mi Mix 4 has just a little better processing power than OnePlus 9. They have the same RAM memory amount and 8 processing cores.
OnePlus 9 features a bit more vivid display than Xiaomi Mi Mix 4, because although it has a little bit smaller screen, and they both have the same resolution of 1080 x 2400, the OnePlus 9 also counts with a quite greater pixels density. Xiaomi Mi Mix 4 captures just a bit better videos and photos than OnePlus 9, because although it has slower 24 fps video frame rate and a smaller diafragm aperture, and they both have the same 7680x4320 video resolution, the Xiaomi Mi Mix 4 also counts with a larger sensor taking more light and vivid colors and a lot more mega-pixels camera in the back.
The OnePlus 9 and the Xiaomi Mi Mix 4 have very similar memory to install games and applications, they have the same internal memory capacity. The Xiaomi Mi Mix 4 and OnePlus 9 count with similar batteries performance.
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