OnePlus Ace 6T vs Xiaomi Mi 9T
The OnePlus Ace 6T (2025) runs on the Qualcomm Snapdragon 8 Gen 5, while the Xiaomi Mi 9T (2019) runs on the Qualcomm Snapdragon 730; launch prices were $320 and $300. By overall MobileRank rating, the OnePlus Ace 6T leads — 72/100 vs 40/100 (a 32-point difference). Key differences: the OnePlus Ace 6T has the bigger battery (8300 mAh vs 4000); the main camera is 50 MP vs 48 MP; the OnePlus Ace 6T is faster in AnTuTu (3,047,634 vs 502,844); the Xiaomi Mi 9T is noticeably lighter (191g vs 211g).
Profile comparison
Category scores
OnePlus Ace 6T
Xiaomi Mi 9T
What makes OnePlus Ace 6T better?
- Higher AnTuTu: 3047634 vs 502844
- Better Geekbench Single: 2833 vs 724
- Better Geekbench Multi: 9119 vs 1836
- Bigger battery: 8300 vs 4000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (90/100 vs 41/100)
- Longer battery life (77/100 vs 22/100)
- Better display (94/100 vs 56/100)
What makes Xiaomi Mi 9T better?
- Lighter: 191g vs 211g
- Cheaper at launch: $300 vs $320
- Better camera (41/100 vs 35/100)
- Better portability (56/100 vs 51/100)
Comparison verdict
Comparing the OnePlus Ace 6T vs the Xiaomi Mi 9T, the OnePlus Ace 6T scores 32 points higher (72/100 vs 40/100). In the "performance" category, the OnePlus Ace 6T leads (90/100 vs 41/100). In the "battery" category, the OnePlus Ace 6T leads (77/100 vs 22/100). Value score: OnePlus Ace 6T — 80/100, 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 6T significantly outperforms the Xiaomi Mi 9T (90/100 vs 41/100). In the "display" category, the OnePlus Ace 6T 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 6T significantly outperforms the Xiaomi Mi 9T (77/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9T is a bit better (56/100 vs 51/100).
Specs comparison
| Specification | OnePlus Ace 6T | Xiaomi Mi 9T | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 5 | Qualcomm Snapdragon 730 | |
| AnTuTu | 3047634 | 502844 | |
| Geekbench Single | 2833 | 724 | |
| Geekbench Multi | 9119 | 1836 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1272x2800 | 2340x1080 | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 8300 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 16 | Android 9 | |
| Brightness (peak) | 3600 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 163.4×77.0×8.1 mm | 156.7×74.3×8.8 mm | |
| Weight | 211 g | 191 g | |
| Launch price | $320 | $300 |
Camera comparison
OnePlus Ace 6T
- 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 6T
- 6.8" AMOLED
- Resolution: 1272x2800
- Refresh rate: 165 Hz
Xiaomi Mi 9T
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
OnePlus Ace 6T
- 8300 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 9T
- 4000 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared OnePlus Ace 6T and Xiaomi Mi 9T, covering their specs and all relevant benchmarks.
OnePlus Ace 6T leads Xiaomi Mi 9T by 506.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $20. Xiaomi Mi 9T was $20 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus Ace 6T significantly outperforms the Xiaomi Mi 9T (90/100 vs 41/100).
display
In the "display" category, the OnePlus Ace 6T 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 6T significantly outperforms the Xiaomi Mi 9T (77/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9T is a bit better (56/100 vs 51/100).
Frequently asked questions
Which is better: the OnePlus Ace 6T or the Xiaomi Mi 9T?
The OnePlus Ace 6T significantly outperforms the Xiaomi Mi 9T by 32 points (72/100 vs 40/100).
What is the rating of the OnePlus Ace 6T and the Xiaomi Mi 9T?
The OnePlus Ace 6T has a MobileRank rating of 72/100, the Xiaomi Mi 9T — 40/100.
Which has the better camera: the OnePlus Ace 6T 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 6T or the Xiaomi Mi 9T?
The OnePlus Ace 6T leads on performance (90/100 vs 41/100).
Should you choose the OnePlus Ace 6T over the Xiaomi Mi 9T?
The OnePlus Ace 6T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.