OnePlus Ace 5 Ultra vs Redmi K90 Ultra
The OnePlus Ace 5 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $350 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 60/100 (a 1-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6700); the OnePlus Ace 5 Ultra is faster in AnTuTu (2,948,304 vs 2,760,000); the OnePlus Ace 5 Ultra is noticeably lighter (206g vs 227g).
OnePlus Ace 5 Ultra
Redmi K90 Ultra
- Higher AnTuTu: 2948304 vs 2760000
- Lighter: 206g vs 227g
- Cheaper: $350 vs $420
- Better design/ergonomics (42/100 vs 16/100)
- Better value for money (86/100 vs 81/100)
- Better Geekbench Single: 3050 vs 2729
- Better Geekbench Multi: 9300 vs 8430
- Bigger battery: 8550 vs 6700 mAh
- Higher refresh rate: 165Hz vs 144Hz
- Higher performance (65/100 vs 62/100)
- Better camera (32/100 vs 31/100)
- Longer battery life (77/100 vs 68/100)
Comparing the OnePlus Ace 5 Ultra vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 1 points higher (61/100 vs 60/100). In the "performance" category, the Redmi K90 Ultra and the OnePlus Ace 5 Ultra are nearly equal (65/100 vs 62/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K90 Ultra and the OnePlus Ace 5 Ultra are nearly equal (32/100 vs 31/100). In the "battery" category, the Redmi K90 Ultra is a bit better (77/100 vs 68/100). In the "design" category, the OnePlus Ace 5 Ultra notably outperforms the Redmi K90 Ultra (42/100 vs 16/100). In the "value for money" category, the OnePlus Ace 5 Ultra is a bit better (86/100 vs 81/100).
| Specification | OnePlus Ace 5 Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2948304 | 2760000 | |
| Geekbench Single | 2729 | 3050 | |
| Geekbench Multi | 8430 | 9300 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1272x2800 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 6700 mAh | 8550 mAh | |
| Charging | 100W | 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 | |
| OS | Android 15, ColorOS 15 | Android 16 | |
| Brightness (peak) | 1400 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP65 | IP68/IP69 | |
| Dimensions | 163.4×77.0×8.1 mm | 162.9×77.9×8.2 mm | |
| Weight | 206 g | 227 g | |
| Price | $350 | $420 |
OnePlus Ace 5 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
OnePlus Ace 5 Ultra
- 6.8" AMOLED
- Resolution: 1272x2800
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
OnePlus Ace 5 Ultra
- 6700 mAh
- Wired: 100W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared OnePlus Ace 5 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
OnePlus Ace 5 Ultra leads Redmi K90 Ultra by 6.8% in our overall performance rating.
Price difference: $70. OnePlus Ace 5 Ultra is cheaper by $70.
performance
In the "performance" category, the Redmi K90 Ultra and the OnePlus Ace 5 Ultra are nearly equal (65/100 vs 62/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K90 Ultra and the OnePlus Ace 5 Ultra are nearly equal (32/100 vs 31/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (77/100 vs 68/100).
design
In the "design" category, the OnePlus Ace 5 Ultra notably outperforms the Redmi K90 Ultra (42/100 vs 16/100).
value for money
In the "value for money" category, the OnePlus Ace 5 Ultra is a bit better (86/100 vs 81/100).
Which is better: the OnePlus Ace 5 Ultra or the Redmi K90 Ultra?
The Redmi K90 Ultra edges out the OnePlus Ace 5 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the OnePlus Ace 5 Ultra and the Redmi K90 Ultra?
The OnePlus Ace 5 Ultra has a MobileRank rating of 60/100, the Redmi K90 Ultra — 61/100.
Should you choose the OnePlus Ace 5 Ultra over the Redmi K90 Ultra?
The OnePlus Ace 5 Ultra is a better fit for active users, budget-conscious buyers. The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers.