Compare phones
| Global Score | |
| 76 | 83.3 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11 | Android 10, 9.0 Pie, 8.0 Oreo |
| 2021-04-02 | 2018-06-05 |
| 6.30 x 2.92 x 0.34 inches | 6.10 x 2.94 x 0.30 inches |
| 6.77 ounces | 6.17 ounces |
| Arctic Sky, Astral Black and Winter Mist | Black, Blue, Gold and White |
| Aluminum and Glass (Corning Gorilla Glass) | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.2 inches |
| 2400 x 1080 pixels | 2248 x 1080 pixels |
| AMOLED | AMOLED |
| 405 pixels per inch | 402 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 | 6 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 | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 23.00mm focal length | 56.00mm 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 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.65 | 9.9 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 3400mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 5.36 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Mi 8 is a little bit better than OnePlus 9, with an 83.3 score against 76. Although Xiaomi Mi 8 is older than OnePlus 9, it's design is just a bit lighter and somewhat thinner. Both devices in our current comparison include Android OS (Operating System), but Xiaomi Mi 8 has the previous 10 version and OnePlus 9 has Android 11.
The Xiaomi Mi 8's processor is just as good as the OnePlus 9 one, and although the Xiaomi Mi 8 has a smaller amount of RAM memory, they both have the same number of cores. Xiaomi Mi 8 counts with just a bit better looking screen than OnePlus 9, although it has a little bit smaller display, a bit worse resolution of 1080 x 2248px and a bit lower pixels density.
The OnePlus 9 features a very superior camera than Xiaomi Mi 8, and although they both have a same size aperture, the OnePlus 9 also has a much better 7680x4320 video quality, a way bigger camera sensor which gives a way higher photo and video quality and a camera with lot more mega pixels. The Xiaomi Mi 8 features a lot bigger storage capacity for applications and games than OnePlus 9, because it has 256 GB internal memory capacity.
The OnePlus 9 has superior battery duration than Xiaomi Mi 8, because it has a 32 percent bigger battery capacity.
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