OnePlus 9 vs Xiaomi 17 Ultra (China)
The OnePlus 9 (2021) runs on the Qualcomm Snapdragon 888, while the Xiaomi 17 Ultra (China) (2025) runs on the Snapdragon 8 Elite Gen 5; launch prices were $729 and $892. By overall MobileRank rating, the Xiaomi 17 Ultra (China) leads — 87/100 vs 60/100 (a 27-point difference). Key differences: the Xiaomi 17 Ultra (China) has the bigger battery (6800 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Xiaomi 17 Ultra (China) is faster in AnTuTu (3,950,082 vs 1,157,244); the OnePlus 9 is noticeably lighter (192g vs 224g).
Profile comparison
Category scores
OnePlus 9
Xiaomi 17 Ultra (China)
What makes OnePlus 9 better?
- Lighter: 192g vs 224g
- Cheaper at launch: $729 vs $892
- Better portability (56/100 vs 42/100)
What makes Xiaomi 17 Ultra (China) better?
- Higher AnTuTu: 3950082 vs 1157244
- Better Geekbench Single: 3639 vs 1500
- Better Geekbench Multi: 11047 vs 3537
- Bigger battery: 6800 vs 4500 mAh
- Faster charging: 90W vs 65W
- Better main camera: 50MP vs 48MP
- Faster wireless charging: 50W vs 15W
- Higher performance (98/100 vs 64/100)
- Better camera (87/100 vs 51/100)
- Longer battery life (83/100 vs 50/100)
- Better display (81/100 vs 80/100)
Comparison verdict
Comparing the OnePlus 9 vs the Xiaomi 17 Ultra (China), the Xiaomi 17 Ultra (China) scores 27 points higher (87/100 vs 60/100). In the "performance" category, the Xiaomi 17 Ultra (China) leads (98/100 vs 64/100). In the "camera" category, the Xiaomi 17 Ultra (China) leads (87/100 vs 51/100). In the "battery" category, the Xiaomi 17 Ultra (China) leads (83/100 vs 50/100). Value score: OnePlus 9 — 34/100, Xiaomi 17 Ultra (China) — 88/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 (98/100 vs 64/100). In the "display" category, the Xiaomi 17 Ultra (China) and the OnePlus 9 are nearly equal (81/100 vs 80/100). In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 (87/100 vs 51/100). In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 (83/100 vs 50/100). In the "portability" category, the OnePlus 9 is a bit better (56/100 vs 42/100).
Specs comparison
| Specification | OnePlus 9 | Xiaomi 17 Ultra (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 888 | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 1157244 | 3950082 | |
| Geekbench Single | 1500 | 3639 | |
| Geekbench Multi | 3537 | 11047 | |
| Display | 6.5" AMOLED | 6.9" LTPO AMOLED | |
| Resolution | 2400x1080 | 1200x2608 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4500 mAh | 6800 mAh | |
| Charging | 65W | 90W | |
| Wireless charging | 15W | 50W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 16 MP | 50 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 512GB / 1TB | |
| OS | Android 11 | Android 16 | |
| Brightness (peak) | 1100 nits | — | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 160.0×74.2×8.7 mm | 162.9×77.6×8.3 mm | |
| Weight | 192 g | 224 g | |
| Launch price | $729 | $892 |
Camera comparison
OnePlus 9
- Main: 48MP f/1.8
- Ultrawide: 50MP
- Front: 16MP
Xiaomi 17 Ultra (China)
- Main: 50MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
OnePlus 9
- 6.5" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Xiaomi 17 Ultra (China)
- 6.9" LTPO AMOLED
- Resolution: 1200x2608
- Refresh rate: 120 Hz
Battery and charging
OnePlus 9
- 4500 mAh
- Wired: 65W
- Wireless: 15W
Xiaomi 17 Ultra (China)
- 6800 mAh
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared OnePlus 9 and Xiaomi 17 Ultra (China), covering their specs and all relevant benchmarks.
Xiaomi 17 Ultra (China) leads OnePlus 9 by 70.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $163. OnePlus 9 was $163 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 (98/100 vs 64/100).
display
In the "display" category, the Xiaomi 17 Ultra (China) and the OnePlus 9 are nearly equal (81/100 vs 80/100).
camera
In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 (87/100 vs 51/100).
battery
In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 (83/100 vs 50/100).
portability
In the "portability" category, the OnePlus 9 is a bit better (56/100 vs 42/100).
Frequently asked questions
Which is better: the OnePlus 9 or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) significantly outperforms the OnePlus 9 by 27 points (87/100 vs 60/100).
What is the rating of the OnePlus 9 and the Xiaomi 17 Ultra (China)?
The OnePlus 9 has a MobileRank rating of 60/100, the Xiaomi 17 Ultra (China) — 87/100.
Which has the better camera: the OnePlus 9 or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on camera score (87/100 vs 51/100).
Which is more powerful: the OnePlus 9 or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on performance (98/100 vs 64/100).
Should you choose the OnePlus 9 over the Xiaomi 17 Ultra (China)?
The OnePlus 9 is a better fit for active users. The Xiaomi 17 Ultra (China) is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.