OnePlus 9 Pro vs Xiaomi 15 Ultra
The Verdict
Xiaomi 15 Ultra decisively outperforms the OnePlus 9 Pro across nearly every dimension. The 15 Ultra's Snapdragon 8 Elite processor crushes the 888 chipset in raw performance, while its 16GB RAM and up to 1TB storage vastly exceed the 9 Pro's 8GB and 256GB maximum. Display technology favors Xiaomi with 3200 nits peak brightness versus 1300 nits, plus superior LTPO tech and 120Hz refresh across a slightly larger 6.73-inch panel. Camera capability shows the widest gap: Xiaomi's 1-inch main sensor with f/1.63 aperture combined with a 200MP periscope telephoto with 5x optical zoom and OIS crushes OnePlus's 48MP main with 3.3x zoom. Battery capacity expands significantly from 4500mAh to 5810mAh, and charging speeds jump from 65W to 90W wired. Build quality shifts to premium titanium framing in Xiaomi versus aluminum. The 9 Pro's only advantages are marginally better portability at 197g versus 229g and slightly cleaner OxygenOS compared to HyperOS. At essentially the same price point ($969 versus $999), Xiaomi 15 Ultra represents substantially superior value with modern flagship specifications versus a phone released years earlier.
Who Should Buy
Buy the OnePlus 9 Pro if…
- →Hasselblad partnership improved color accuracy
- →Freeform ultrawide lens reduces edge distortion
- →65W wired and 50W wireless fast charging
Buy the Xiaomi 15 Ultra if…
- →200MP periscope telephoto with 5x optical zoom rivals Galaxy S25 Ultra
- →1-inch main sensor with Leica optics produces stunning photos
- →Titanium frame gives a premium, durable build
Category Scores
Pros & Cons
OnePlus 9 Pro
Pros
- Hasselblad partnership improved color accuracy
- Freeform ultrawide lens reduces edge distortion
- 65W wired and 50W wireless fast charging
- QHD+ 120Hz LTPO AMOLED display
- IP68 water resistance
Cons
- Snapdragon 888 throttles under heavy use
- 8 MP telephoto is a weak point
- Hasselblad improvements were mostly color tuning
- OxygenOS updates became slower
- Overheating during extended gaming
Xiaomi 15 Ultra
Pros
- 200MP periscope telephoto with 5x optical zoom rivals Galaxy S25 Ultra
- 1-inch main sensor with Leica optics produces stunning photos
- Titanium frame gives a premium, durable build
- 4K@120fps video recording is industry-leading
- 90W fast charging and 50W wireless on a huge 5810 mAh battery
Cons
- Heavy at 229 g and thick at 9.17 mm
- Very expensive at $999 with limited global availability
- HyperOS software experience lags behind iOS and One UI
- Camera bump is extremely large
Full Specifications
| Spec | OnePlus 9 Pro | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 11, OxygenOS 11 | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 197 g | 229 g |
| Material | Aluminum frame, Gorilla Glass 5 | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP68 | IP68 |
| Dimensions | 163.2 x 73.6 x 8.7 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 48 MP, f/1.8, OIS (Hasselblad tuned) | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 16 MP, f/2.4 | 32 MP, f/2.0 |
| Video | 8K@30fps, 4K@120fps | 8K@30fps, 4K@120fps |
| Telephoto | 8 MP, f/2.4, 3.3x optical zoom | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Ultrawide | 50 MP, f/2.2, freeform lens | 50 MP, f/2.0, 128-degree |
| Memory | ||
| RAM | 8 GB | 16 GB |
| Storage options | 128 GB, 256 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 4500 mAh | 5810 mAh |
| Charging | 65W Warp Charge wired | 90W wired |
| Wireless charging | 50W wireless | 50W wireless |
| Display | ||
| Size | 6.7 inches | 6.73 inches |
| Type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 3216 x 1440 | 3200 x 1440 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 1300 | 3200 |
| Processor | ||
| CPU | Octa-core (1x2.84 GHz + 3x2.42 GHz + 4x1.8 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Adreno 660 | Adreno 830 |
| Chipset | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 3.1 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.2 | 5.4 |
Want to compare a third product?
Add another product for a 3-way comparison.
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
Explore more in phones, see all OnePlus products or all Xiaomi products. View full details for the OnePlus 9 Pro or the Xiaomi 15 Ultra.