Compare phones
| Global Score | |
| 76 | 83.8 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11 | -- |
| 2021-04-02 | 2018-11-01 |
| 6.30 x 2.92 x 0.34 inches | 6.22 x 2.94 x 0.33 inches |
| 6.77 ounces | 7.69 ounces |
| Arctic Sky, Astral Black and Winter Mist | Black, Blue and Green |
| Aluminum and Glass (Corning Gorilla Glass) | Aluminum and Ceramic |
| Scratch-Resistant Glass | -- |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 630 GPU |
| 9.63 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 48.00 MP + 16.00 MP | 12.20 MP + 24.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 23.00mm focal length | -- |
| 0.71 inches (1/1.4") sensor | 0.39 inches (1/2.55") sensor |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 12.65 | 10.34 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.3 |
| Battery Life | |
| 4500mAh Battery | 3200mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.32 | 5.2 |
| Other Features | |
| Bluetooth 5.2 | 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 |
Comparison review
Xiaomi Mi Mix 3 has an overall score of 83.8, which is much better than OnePlus 9's 76 global score. The Xiaomi Mi Mix 3 is a noticeably older and heavier cellphone than the OnePlus 9, but Xiaomi made it a little bit thinner anyway. Xiaomi Mi Mix 3 has a bit more vivid screen than OnePlus 9, although it has a little lower screen pixel density, a bit worse resolution of 1080 x 2340px and a quite smaller screen.
The Xiaomi Mi Mix 3 counts with a much bigger storage to install games and applications than OnePlus 9, because it has 128 GB more internal memory. The OnePlus 9 and the Xiaomi Mi Mix 3 both have extremely similar processing units, both of them have the same number of cores and the same RAM memory amount.
OnePlus 9 takes much clearer photographs and videos than Xiaomi Mi Mix 3, and although they both have the same aperture, the OnePlus 9 also has a much higher video resolution, a much larger sensor taking more light and vivid colors and a camera in the back with a way higher resolution. OnePlus 9 features a way better battery life than Xiaomi Mi Mix 3, because it has 4500mAh of battery capacity.
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