OnePlus Ace 6 Ultra vs Redmi K90 Max
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500; launch prices were $555 and $504. By overall MobileRank rating, the Redmi K90 Max leads — 75/100 vs 74/100 (a 1-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 8550); the Redmi K90 Max is faster in AnTuTu (3,760,662 vs 3,429,868).
Profile comparison
Category scores
OnePlus Ace 6 Ultra
Redmi K90 Max
What makes OnePlus Ace 6 Ultra better?
- Bigger battery: 8600 vs 8550 mAh
- Faster charging: 120W vs 100W
- Lighter: 217g vs 227g
- Longer battery life (82/100 vs 78/100)
- Better portability (43/100 vs 41/100)
What makes Redmi K90 Max better?
- Higher AnTuTu: 3760662 vs 3429868
- Cheaper at launch: $504 vs $555
- Higher performance (96/100 vs 94/100)
- Better camera (37/100 vs 35/100)
Comparison verdict
Comparing the OnePlus Ace 6 Ultra vs the Redmi K90 Max, the Redmi K90 Max scores 1 points higher (75/100 vs 74/100). Value score: OnePlus Ace 6 Ultra — 66/100, Redmi K90 Max — 72/100; 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 Redmi K90 Max and the OnePlus Ace 6 Ultra are nearly equal (96/100 vs 94/100). In the "display" category, both devices are on the same level — 94/100. In the "camera" category, the Redmi K90 Max and the OnePlus Ace 6 Ultra are nearly equal (37/100 vs 35/100). In the "battery" category, the OnePlus Ace 6 Ultra and the Redmi K90 Max are nearly equal (82/100 vs 78/100). In the "portability" category, the OnePlus Ace 6 Ultra and the Redmi K90 Max are nearly equal (43/100 vs 41/100).
Specs comparison
| Specification | OnePlus Ace 6 Ultra | Redmi K90 Max | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Dimensity 9500 | |
| AnTuTu | 3429868 | 3760662 | |
| Geekbench Single | 3293 | 3293 | |
| Geekbench Multi | 10243 | 10243 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1272x2772 | 2772x1280 | |
| Refresh rate | 165 Hz | 165 Hz | |
| Battery | 8600 mAh | 8550 mAh | |
| Charging | 120W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 1800 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP66 | |
| Dimensions | 162.5×77.5×8.5 mm | 162.9×77.9×8.1 mm | |
| Weight | 217 g | 227 g | |
| Launch price | $555 | $504 |
Camera comparison
OnePlus Ace 6 Ultra
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Max
- Main: 50MP f/1.68
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Battery and charging
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OnePlus Ace 6 Ultra and Redmi K90 Max, covering their specs and all relevant benchmarks.
Redmi K90 Max leads OnePlus Ace 6 Ultra by 8.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $51. Redmi K90 Max was $51 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Max and the OnePlus Ace 6 Ultra are nearly equal (96/100 vs 94/100).
display
In the "display" category, both devices are on the same level — 94/100.
camera
In the "camera" category, the Redmi K90 Max and the OnePlus Ace 6 Ultra are nearly equal (37/100 vs 35/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra and the Redmi K90 Max are nearly equal (82/100 vs 78/100).
portability
In the "portability" category, the OnePlus Ace 6 Ultra and the Redmi K90 Max are nearly equal (43/100 vs 41/100).
Frequently asked questions
Which is better: the OnePlus Ace 6 Ultra or the Redmi K90 Max?
The Redmi K90 Max edges out the OnePlus Ace 6 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the OnePlus Ace 6 Ultra and the Redmi K90 Max?
The OnePlus Ace 6 Ultra has a MobileRank rating of 74/100, the Redmi K90 Max — 75/100.
Should you choose the OnePlus Ace 6 Ultra over the Redmi K90 Max?
The OnePlus Ace 6 Ultra is a better fit for gamers and power users, those who care about battery life. The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life.