Compare phones
| Global Score | |
| 71.6 | 83.2 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11, 10, 9.0 Pie | -- |
| 2019-05-21 | 2019-03-06 |
| 6.21 x 2.94 x 0.32 inches | 6.20 x 2.94 x 0.30 inches |
| 6.42 ounces | 6.10 ounces |
| Mirror gray | Black, Blue and Purple |
| Glass (Corning Gorilla Glass 5) and Metal | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 319.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Qualcomm Snapdragon 855 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Adreno 640 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 + 16.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) 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 |
| 11.88 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 3700mAh Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.68 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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
The Xiaomi Mi 9 has a global score of 83.2, which is much better than OnePlus 7's general score of 71.6. The Xiaomi Mi 9 construction is just a bit lighter and just a little thinner than the OnePlus 7, even when they were released only 3 months apart. The Xiaomi Mi 9 features a processor that is very similar to OnePlus 7's CPU, they have a Octa-Core CPU and 6 GB of RAM memory.
The Xiaomi Mi 9 counts with a little bit better display than OnePlus 7. Both have the same amount of pixels per inch in the display, the same resolution of 1080 x 2340 pixels and a same size display. Xiaomi Mi 9 counts with as much storage capacity for games and applications as the OnePlus 7 one, both have exactly the same 128 GB internal memory.
The Xiaomi Mi 9 has a little bit better camera than OnePlus 7, although it has a smaller aperture which is worse for capturing photos in low-light situations, they both have the same video frame rates, a back-facing camera with a 48 mega pixels resolution, the same 3840x2160 video resolution and a 0.5 inches back camera sensor.
OnePlus 7 counts with just a little better battery duration than Xiaomi Mi 9, because it has a 12% greater battery size.
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