Compare phones
| Global Score | |
| 83.2 | 76 |
| Basic Information | |
| Xiaomi | OnePlus |
| -- | Android 11 |
| 2019-03-06 | 2021-04-02 |
| 6.20 x 2.94 x 0.30 inches | 6.30 x 2.92 x 0.34 inches |
| 6.10 ounces | 6.77 ounces |
| Black, Blue and Purple | Arctic Sky, Astral Black and Winter Mist |
| Glass (Corning Gorilla Glass 5) and Metal | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 700.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 640 GPU | Adreno 660 GPU |
| 9.63 | 9.63 |
| 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 + 20.00 MP | 48.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 23.00mm focal length |
| 0.5 inches (1/2") sensor | 0.71 inches (1/1.4") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 12.1 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 10.7 |
| Battery Life | |
| 3300mAh Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.28 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| 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 |
Comparison review
Xiaomi Mi 9 has a general score of 83.2, which is just a bit better than the OnePlus 9's overall score of 76. The Xiaomi Mi 9 construction is thinner and a little bit lighter than the OnePlus 9, despite of the fact that it was released 2 years before. Xiaomi Mi 9 counts with a little sharper screen than OnePlus 9, although it has a just a bit lower pixels quantity per inch in the display, a little smaller screen and a quite lower resolution of 1080 x 2340.
The OnePlus 9 features as much storage to install applications and games as the Xiaomi Mi 9, both of them have the same 128 GB internal storage. The OnePlus 9 has a processor that is very similar to Xiaomi Mi 9's CPU, and although the OnePlus 9 has more RAM, they both have 8 cpu cores. OnePlus 9 shoots clearer videos and photos than Xiaomi Mi 9, and although they both have a F1.8 aperture and a same resolution back-facing camera, the OnePlus 9 also has a much bigger sensor and a much higher video definition.
The OnePlus 9 has improved battery duration than Xiaomi Mi 9, because it has a 36% greater battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.