OnePlus Ace 2 vs Redmi K90 Ultra
The OnePlus Ace 2 (2023) runs on the Qualcomm Snapdragon 8+ Gen 1, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 60/100 (a 13-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,481,118); the OnePlus Ace 2 is noticeably lighter (204g vs 227g).
Profile comparison
Category scores
OnePlus Ace 2
Redmi K90 Ultra
What makes OnePlus Ace 2 better?
- Lighter: 204g vs 227g
- Better portability (49/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1481118
- Better Geekbench Single: 3013 vs 1761
- Better Geekbench Multi: 9287 vs 4688
- Bigger battery: 8550 vs 5000 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 71/100)
- Better camera (37/100 vs 35/100)
- Longer battery life (78/100 vs 60/100)
- Better display (94/100 vs 84/100)
Comparison verdict
Comparing the OnePlus Ace 2 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 13 points higher (73/100 vs 60/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 71/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 60/100). In the "performance" category, the Redmi K90 Ultra notably outperforms the OnePlus Ace 2 (92/100 vs 71/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100). In the "camera" category, the Redmi K90 Ultra and the OnePlus Ace 2 are nearly equal (37/100 vs 35/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the OnePlus Ace 2 (78/100 vs 60/100). In the "portability" category, the OnePlus Ace 2 is a bit better (49/100 vs 40/100).
Specs comparison
| Specification | OnePlus Ace 2 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8+ Gen 1 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1481118 | 3233695 | |
| Geekbench Single | 1761 | 3013 | |
| Geekbench Multi | 4688 | 9287 | |
| Display | 6.7" AMOLED | 6.8" AMOLED | |
| Resolution | 1240x2772 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5000 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 | 256GB / 512GB | |
| OS | Android 13, ColorOS 13 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 163.4×74.3×8.7 mm | 162.9×77.9×8.2 mm | |
| Weight | 204 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
OnePlus Ace 2
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OnePlus Ace 2
- 6.7" AMOLED
- Resolution: 1240x2772
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
OnePlus Ace 2
- 5000 mAh
- Wired: 100W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OnePlus Ace 2 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads OnePlus Ace 2 by 54.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
OnePlus Ace 2
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra notably outperforms the OnePlus Ace 2 (92/100 vs 71/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100).
camera
In the "camera" category, the Redmi K90 Ultra and the OnePlus Ace 2 are nearly equal (37/100 vs 35/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the OnePlus Ace 2 (78/100 vs 60/100).
portability
In the "portability" category, the OnePlus Ace 2 is a bit better (49/100 vs 40/100).
Frequently asked questions
Which is better: the OnePlus Ace 2 or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the OnePlus Ace 2 — the overall rating gap is 13 points.
What is the rating of the OnePlus Ace 2 and the Redmi K90 Ultra?
The OnePlus Ace 2 has a MobileRank rating of 60/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the OnePlus Ace 2 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 71/100).
Should you choose the OnePlus Ace 2 over the Redmi K90 Ultra?
The OnePlus Ace 2 is a better fit for active users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.