Compare phones
| Global Score | |
| 81 | 76 |
| Basic Information | |
| Xiaomi | OnePlus |
| Android 12 | Android 11 |
| -- | 2021-04-02 |
| -- | 6.30 x 2.92 x 0.34 inches |
| -- | 6.77 ounces |
| Black and White | Arctic Sky, Astral Black and Winter Mist |
| Aluminum and Ceramic | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 700.00 |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| AMOLED | AMOLED |
| 524 pixels per inch | 405 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.7 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 730 GPU | Adreno 660 GPU |
| 6.21 | 9.63 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 50.00 MP + 20.00 MP | 48.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 24.00mm focal length | 23.00mm focal length |
| 0.5 inches (1/2") sensor | 0.71 inches (1/1.4") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 12.32 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 4800mAh Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.64 | 6.32 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.2 |
| GPS | GPS |
| -- | NFC |
| 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 12S Ultra has an overall score of 81, which is just a bit better than OnePlus 9's 76 global score. Xiaomi 12S Ultra is a notably thinner and way lighter phone than the OnePlus 9. Both of these phones use Android operating system, but the Xiaomi 12S Ultra has newer 12 version while OnePlus 9 has Android 11 version.
Xiaomi 12S Ultra has a brighter screen than OnePlus 9, because it has a little bit bigger screen, a better screen pixel density and a better resolution of 1440 x 3200 pixels. Xiaomi 12S Ultra features a very superior storage capacity to install games and applications than OnePlus 9, because it has 128 GB more internal storage capacity.
The OnePlus 9 features a much better performing CPU than Xiaomi 12S Ultra. Both of them have the same RAM amount and a Octa-Core CPU. The OnePlus 9 takes a little bit better photographs and videos than Xiaomi 12S Ultra, because although it has a lower video quality and a back-facing camera with less MP, it also counts with a much larger back camera sensor which offers a lot better image and video quality and a bigger diafragm aperture to capture better low light photography and videos.
The Xiaomi 12S Ultra counts with a little longer battery performance than OnePlus 9, because it has 4800mAh of battery capacity against 4500mAh.
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