Compare phones
| Global Score | |
| 76 | 80.6 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11 | Android 14 |
| 2021-04-02 | 2024-10-29 |
| 6.30 x 2.92 x 0.34 inches | 6.00 x 2.80 x 0.32 inches |
| 6.77 ounces | 6.67 ounces |
| Arctic Sky, Astral Black and Winter Mist | -- |
| Aluminum and Glass (Corning Gorilla Glass) | Glass |
| Scratch-Resistant Glass | -- |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2670 x 1200 pixels |
| AMOLED | OLED |
| 405 pixels per inch | 457 pixels per inch |
| -- | 3200 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 10.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 830 GPU |
| 9.63 | 6.21 |
| 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 | 50.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.60 aperture |
| 23.00mm focal length | 23.00mm focal length |
| 0.71 inches (1/1.4") sensor | -- |
| 7680 x 4320 (30 fps) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 12.65 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G |
| Nano SIM | Nano SIM |
| 10.7 | 7 |
| Battery Life | |
| 4500mAh Battery | 5400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.32 | 7.12 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass and Gyroscope |
Comparison review
Xiaomi 15 is slightly better than OnePlus 9, having a global score of 80.6 against 76. These phones include Android operating system, but the Xiaomi 15 has a newer 14 version while OnePlus 9 has Android 11 version. The Xiaomi 15 body is notably newer, just a little bit lighter and just a little thinner than the OnePlus 9.
OnePlus 9 counts with a much greater hardware performance than Xiaomi 15, although it has 4 GB less RAM memory, they both have 8 cpu cores. Xiaomi 15 features an incredibly better looking screen than OnePlus 9, because although it has a quite smaller display, it also counts with a little higher amount of pixels per screen inch and a bit higher 1200 x 2670px resolution.
The OnePlus 9 captures slightly better photos and videos than Xiaomi 15, although it has a worse resolution back-facing camera, a lower video definition and a tinier aperture which is not good for low light images. Xiaomi 15 has much more memory to store more apps and games than OnePlus 9, because it has more internal memory capacity.
The Xiaomi 15 counts with longer battery life than OnePlus 9, because it has 5400mAh of battery capacity.
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