OnePlus Ace 7 Pro vs Xiaomi Mi 9
The OnePlus Ace 7 Pro (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi Mi 9 (2019) runs on the Qualcomm Snapdragon 855. By overall MobileRank rating, the OnePlus Ace 7 Pro leads — 83/100 vs 47/100 (a 36-point difference). Key differences: the OnePlus Ace 7 Pro has the bigger battery (9000 mAh vs 3300); the main camera is 200 MP vs 48 MP; the OnePlus Ace 7 Pro is faster in AnTuTu (4,097,962 vs 824,513); the Xiaomi Mi 9 is noticeably lighter (173g vs 218g).
Profile comparison
Category scores
OnePlus Ace 7 Pro
Xiaomi Mi 9
What makes OnePlus Ace 7 Pro better?
- Higher AnTuTu: 4097962 vs 824513
- Better Geekbench Single: 3639 vs 968
- Better Geekbench Multi: 11047 vs 2731
- Bigger battery: 9000 vs 3300 mAh
- Faster charging: 100W vs 27W
- Better main camera: 200MP vs 48MP
- Higher refresh rate: 185Hz vs 60Hz
- Higher performance (98/100 vs 54/100)
- Better camera (65/100 vs 44/100)
- Longer battery life (80/100 vs 22/100)
- Better display (94/100 vs 56/100)
What makes Xiaomi Mi 9 better?
- Lighter: 173g vs 218g
- Better portability (79/100 vs 43/100)
Comparison verdict
Comparing the OnePlus Ace 7 Pro vs the Xiaomi Mi 9, the OnePlus Ace 7 Pro scores 36 points higher (83/100 vs 47/100). In the "performance" category, the OnePlus Ace 7 Pro leads (98/100 vs 54/100). In the "camera" category, the OnePlus Ace 7 Pro leads (65/100 vs 44/100). In the "battery" category, the OnePlus Ace 7 Pro leads (80/100 vs 22/100). In the "performance" category, the OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 (98/100 vs 54/100). In the "display" category, the OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 (94/100 vs 56/100). In the "camera" category, the OnePlus Ace 7 Pro notably outperforms the Xiaomi Mi 9 (65/100 vs 44/100). In the "battery" category, the OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 (80/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9 significantly outperforms the OnePlus Ace 7 Pro (79/100 vs 43/100).
Specs comparison
| Specification | OnePlus Ace 7 Pro | Xiaomi Mi 9 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 855 | |
| AnTuTu | 4097962 | 824513 | |
| Geekbench Single | 3639 | 968 | |
| Geekbench Multi | 11047 | 2731 | |
| Display | 6.8" LTPO AMOLED | 6.4" AMOLED | |
| Resolution | 1272x2772 | 2340x1080 | |
| Refresh rate | 185 Hz | 60 Hz | |
| Battery | 9000 mAh | 3300 mAh | |
| Charging | 100W | 27W | |
| Wireless charging | 0W | 20W | |
| Main camera | 200 MP | 48 MP | |
| Ultrawide | 0 MP | 16 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 17 | Android 9 | |
| Brightness (peak) | 2000 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.3×77.4×8.5 mm | 157.5×74.7×7.6 mm | |
| Weight | 218 g | 173 g | |
| Launch price | — | $400 |
Camera comparison
OnePlus Ace 7 Pro
- Main: 200MP f/1.8
- Telephoto: 50MP
- Front: 16MP
Xiaomi Mi 9
- Main: 48MP f/1.75
- Ultrawide: 16MP
- Telephoto: 12MP
- Front: 20MP
Display comparison
OnePlus Ace 7 Pro
- 6.8" LTPO AMOLED
- Resolution: 1272x2772
- Refresh rate: 185 Hz
Xiaomi Mi 9
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
OnePlus Ace 7 Pro
- 9000 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 9
- 3300 mAh
- Wired: 27W
- Wireless: 20W
Overall performance score
We compared OnePlus Ace 7 Pro and Xiaomi Mi 9, covering their specs and all relevant benchmarks.
OnePlus Ace 7 Pro leads Xiaomi Mi 9 by 397.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
OnePlus Ace 7 Pro
Price unknownDetailed category analysis
performance
In the "performance" category, the OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 (98/100 vs 54/100).
display
In the "display" category, the OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 (94/100 vs 56/100).
camera
In the "camera" category, the OnePlus Ace 7 Pro notably outperforms the Xiaomi Mi 9 (65/100 vs 44/100).
battery
In the "battery" category, the OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 (80/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9 significantly outperforms the OnePlus Ace 7 Pro (79/100 vs 43/100).
Frequently asked questions
Which is better: the OnePlus Ace 7 Pro or the Xiaomi Mi 9?
The OnePlus Ace 7 Pro significantly outperforms the Xiaomi Mi 9 by 36 points (83/100 vs 47/100).
What is the rating of the OnePlus Ace 7 Pro and the Xiaomi Mi 9?
The OnePlus Ace 7 Pro has a MobileRank rating of 83/100, the Xiaomi Mi 9 — 47/100.
Which has the better camera: the OnePlus Ace 7 Pro or the Xiaomi Mi 9?
The OnePlus Ace 7 Pro leads on camera score (65/100 vs 44/100).
Which is more powerful: the OnePlus Ace 7 Pro or the Xiaomi Mi 9?
The OnePlus Ace 7 Pro leads on performance (98/100 vs 54/100).
Should you choose the OnePlus Ace 7 Pro over the Xiaomi Mi 9?
The OnePlus Ace 7 Pro is a better fit for gamers and power users, those who care about battery life.