OnePlus Ace 5 Ultra vs Xiaomi Mi 9T
The OnePlus Ace 5 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Xiaomi Mi 9T (2019) runs on the Qualcomm Snapdragon 730; launch prices were $350 and $300. By overall MobileRank rating, the OnePlus Ace 5 Ultra leads — 71/100 vs 40/100 (a 31-point difference). Key differences: the OnePlus Ace 5 Ultra has the bigger battery (6700 mAh vs 4000); the main camera is 50 MP vs 48 MP; the OnePlus Ace 5 Ultra is faster in AnTuTu (2,948,304 vs 502,844); the Xiaomi Mi 9T is noticeably lighter (191g vs 206g).
Profile comparison
Category scores
OnePlus Ace 5 Ultra
Xiaomi Mi 9T
What makes OnePlus Ace 5 Ultra better?
- Higher AnTuTu: 2948304 vs 502844
- Better Geekbench Single: 2729 vs 724
- Better Geekbench Multi: 8430 vs 1836
- Bigger battery: 6700 vs 4000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (89/100 vs 41/100)
- Longer battery life (70/100 vs 22/100)
- Better display (94/100 vs 56/100)
What makes Xiaomi Mi 9T better?
- Lighter: 191g vs 206g
- Cheaper at launch: $300 vs $350
- Better camera (41/100 vs 35/100)
- Better portability (56/100 vs 54/100)
Comparison verdict
Comparing the OnePlus Ace 5 Ultra vs the Xiaomi Mi 9T, the OnePlus Ace 5 Ultra scores 31 points higher (71/100 vs 40/100). In the "performance" category, the OnePlus Ace 5 Ultra leads (89/100 vs 41/100). In the "battery" category, the OnePlus Ace 5 Ultra leads (70/100 vs 22/100). Value score: OnePlus Ace 5 Ultra — 76/100, Xiaomi Mi 9T — 18/100; 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 OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T (89/100 vs 41/100). In the "display" category, the OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T (94/100 vs 56/100). In the "camera" category, the Xiaomi Mi 9T is a bit better (41/100 vs 35/100). In the "battery" category, the OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T (70/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9T and the OnePlus Ace 5 Ultra are nearly equal (56/100 vs 54/100).
Specs comparison
| Specification | OnePlus Ace 5 Ultra | Xiaomi Mi 9T | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 730 | |
| AnTuTu | 2948304 | 502844 | |
| Geekbench Single | 2729 | 724 | |
| Geekbench Multi | 8430 | 1836 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1272x2800 | 2340x1080 | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 6700 mAh | 4000 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 13 MP | |
| Telephoto | 0 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 15, ColorOS 15 | Android 9 | |
| Brightness (peak) | 1400 nits | — | |
| NFC | yes | yes | |
| Protection | IP65 | — | |
| Dimensions | 163.4×77.0×8.1 mm | 156.7×74.3×8.8 mm | |
| Weight | 206 g | 191 g | |
| Launch price | $350 | $300 |
Camera comparison
OnePlus Ace 5 Ultra
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi Mi 9T
- Main: 48MP f/1.75
- Ultrawide: 13MP
- Telephoto: 8MP
- Front: 20MP
Display comparison
OnePlus Ace 5 Ultra
- 6.8" AMOLED
- Resolution: 1272x2800
- Refresh rate: 144 Hz
Xiaomi Mi 9T
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
OnePlus Ace 5 Ultra
- 6700 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 9T
- 4000 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared OnePlus Ace 5 Ultra and Xiaomi Mi 9T, covering their specs and all relevant benchmarks.
OnePlus Ace 5 Ultra leads Xiaomi Mi 9T by 486.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $50. Xiaomi Mi 9T was $50 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T (89/100 vs 41/100).
display
In the "display" category, the OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T (94/100 vs 56/100).
camera
In the "camera" category, the Xiaomi Mi 9T is a bit better (41/100 vs 35/100).
battery
In the "battery" category, the OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T (70/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9T and the OnePlus Ace 5 Ultra are nearly equal (56/100 vs 54/100).
Frequently asked questions
Which is better: the OnePlus Ace 5 Ultra or the Xiaomi Mi 9T?
The OnePlus Ace 5 Ultra significantly outperforms the Xiaomi Mi 9T by 31 points (71/100 vs 40/100).
What is the rating of the OnePlus Ace 5 Ultra and the Xiaomi Mi 9T?
The OnePlus Ace 5 Ultra has a MobileRank rating of 71/100, the Xiaomi Mi 9T — 40/100.
Which has the better camera: the OnePlus Ace 5 Ultra or the Xiaomi Mi 9T?
The Xiaomi Mi 9T leads on camera score (41/100 vs 35/100).
Which is more powerful: the OnePlus Ace 5 Ultra or the Xiaomi Mi 9T?
The OnePlus Ace 5 Ultra leads on performance (89/100 vs 41/100).
Should you choose the OnePlus Ace 5 Ultra over the Xiaomi Mi 9T?
The OnePlus Ace 5 Ultra is a better fit for gamers and power users, budget-conscious buyers.