OnePlus Ace 6 Ultra vs Redmi K90 Pro Max
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5; estimated prices are $555 and $561. By overall MobileRank rating, the Redmi K90 Pro Max leads — 84/100 vs 66/100 (a 18-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 7560); the Redmi K90 Pro Max is faster in AnTuTu (4,119,955 vs 3,429,868).
OnePlus Ace 6 Ultra
Redmi K90 Pro Max
- Bigger battery: 8600 vs 7560 mAh
- Faster charging: 120W vs 100W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper: $555 vs $561
- Better value for money (72/100 vs 71/100)
- Higher AnTuTu: 4119955 vs 3429868
- Better Geekbench Single: 3640 vs 3228
- Better Geekbench Multi: 11033 vs 9553
- Lighter: 210g vs 217g
- Higher performance (94/100 vs 76/100)
- Better camera (74/100 vs 31/100)
- Better design/ergonomics (37/100 vs 28/100)
Comparing the OnePlus Ace 6 Ultra vs the Redmi K90 Pro Max, the Redmi K90 Pro Max scores 18 points higher (84/100 vs 66/100). In the "performance" category, the Redmi K90 Pro Max leads (94/100 vs 76/100). In the "camera" category, the Redmi K90 Pro Max leads (74/100 vs 31/100). In the "performance" category, the Redmi K90 Pro Max notably outperforms the OnePlus Ace 6 Ultra (94/100 vs 76/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K90 Pro Max significantly outperforms the OnePlus Ace 6 Ultra (74/100 vs 31/100). In the "battery" category, both devices are on the same level — 82/100. In the "design" category, the Redmi K90 Pro Max is a bit better (37/100 vs 28/100). In the "value for money" category, the OnePlus Ace 6 Ultra and the Redmi K90 Pro Max are nearly equal (72/100 vs 71/100).
| Specification | OnePlus Ace 6 Ultra | Redmi K90 Pro Max | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3429868 | 4119955 | |
| Geekbench Single | 3228 | 3640 | |
| Geekbench Multi | 9553 | 11033 | |
| Display | 6.8" AMOLED | 6.9" OLED | |
| Resolution | 1272x2772 | 2608x1200 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8600 mAh | 7560 mAh | |
| Charging | 120W | 100W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 1800 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 162.5×77.5×8.5 mm | 163.3×77.8×7.9 mm | |
| Weight | 217 g | 210 g | |
| Price | $555 | $561 |
OnePlus Ace 6 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Pro Max
- Main: 50MP f/f/1.88
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Redmi K90 Pro Max
- 6.9" OLED
- Resolution: 2608x1200
- Refresh rate: 120 Hz
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Redmi K90 Pro Max
- 7560 mAh
- Wired: 100W
- Wireless: 50W
We compared OnePlus Ace 6 Ultra and Redmi K90 Pro Max, covering their specs and all relevant benchmarks.
Redmi K90 Pro Max leads OnePlus Ace 6 Ultra by 16.7% in our overall performance rating.
Price difference: $6. OnePlus Ace 6 Ultra is cheaper by $6.
performance
In the "performance" category, the Redmi K90 Pro Max notably outperforms the OnePlus Ace 6 Ultra (94/100 vs 76/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K90 Pro Max significantly outperforms the OnePlus Ace 6 Ultra (74/100 vs 31/100).
battery
In the "battery" category, both devices are on the same level — 82/100.
design
In the "design" category, the Redmi K90 Pro Max is a bit better (37/100 vs 28/100).
value for money
In the "value for money" category, the OnePlus Ace 6 Ultra and the Redmi K90 Pro Max are nearly equal (72/100 vs 71/100).
Which is better: the OnePlus Ace 6 Ultra or the Redmi K90 Pro Max?
The Redmi K90 Pro Max is noticeably better than the OnePlus Ace 6 Ultra — the overall rating gap is 18 points.
What is the rating of the OnePlus Ace 6 Ultra and the Redmi K90 Pro Max?
The OnePlus Ace 6 Ultra has a MobileRank rating of 66/100, the Redmi K90 Pro Max — 84/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Redmi K90 Pro Max?
The Redmi K90 Pro Max leads on camera score (74/100 vs 31/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Redmi K90 Pro Max?
The Redmi K90 Pro Max leads on performance (94/100 vs 76/100).
Should you choose the OnePlus Ace 6 Ultra over the Redmi K90 Pro Max?
The OnePlus Ace 6 Ultra is a better fit for active users, those who care about battery life. The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life.