Compare phones
| Global Score | |
| 76 | 77.5 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11 | -- |
| 2021-04-02 | 2016-05-17 |
| 6.30 x 2.92 x 0.34 inches | 6.81 x 3.48 x 0.30 inches |
| 6.77 ounces | 7.16 ounces |
| Arctic Sky, Astral Black and Winter Mist | 16 777 216 |
| Aluminum and Glass (Corning Gorilla Glass) | Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| AMOLED | IPS LCD |
| 405 pixels per inch | 344 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.7 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 652 8956 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A72 and ARM Cortex-A53, 64-bit (Octa-Core 1800 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 510 GPU |
| 9.63 | 8.91 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 13.18 |
| Camera | |
| 48.00 MP + 16.00 MP | 16.00 MP + 5.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 23.00mm focal length | -- |
| 0.71 inches (1/1.4") sensor | -- |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 12.65 | 9.68 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G) and HSPA |
| Nano SIM | Micro SIM, Dual SIM |
| 10.7 | 6 |
| Battery Life | |
| 4500mAh Battery | 4850mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 6.64 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 4.2 |
| GPS | GPS |
| 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 Max is just a bit better than OnePlus 9, with a score of 77.5 against 76. The Xiaomi Mi Max design is somewhat thinner than the OnePlus 9, but it's just a little bit heavier and was released 5 years before. OnePlus 9 counts with a little sharper screen than Xiaomi Mi Max, because it has a little bit higher 1080 x 2400px resolution, a little greater amount of pixels in each inch in the screen and a bit larger display.
OnePlus 9 has a bit better performance than Xiaomi Mi Max, and although they both have the same number of cores, the OnePlus 9 also has a greater amount of RAM memory. The Xiaomi Mi Max has a much greater memory capacity for applications and games than OnePlus 9, and although they both have the same 128 GB internal storage capacity, the Xiaomi Mi Max also has a SD card slot that holds a maximum of 256 GB.
OnePlus 9 features a way better camera than Xiaomi Mi Max, because it has a larger aperture to capture better low-light captures and videos, a lot more MP camera in the back and a way higher 7680x4320 video resolution. The Xiaomi Mi Max has a bit superior battery life than OnePlus 9, because it has 4850mAh of battery capacity.
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