OPPO Find X9 Ultra vs Redmi K90 Ultra
The OPPO Find X9 Ultra (2026) runs on the Snapdragon 8 Elite Gen 5, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $1299 and $420. By overall MobileRank rating, the OPPO Find X9 Ultra leads — 92/100 vs 73/100 (a 19-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7050); the main camera is 200 MP vs 50 MP; the OPPO Find X9 Ultra is faster in AnTuTu (4,231,988 vs 3,233,695).
Profile comparison
Category scores
OPPO Find X9 Ultra
Redmi K90 Ultra
What makes OPPO Find X9 Ultra better?
- Higher AnTuTu: 4231988 vs 3233695
- Better Geekbench Single: 3639 vs 3013
- Better Geekbench Multi: 11047 vs 9287
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 92/100)
- Better camera (96/100 vs 37/100)
- Longer battery life (87/100 vs 78/100)
- Better display (98/100 vs 94/100)
What makes Redmi K90 Ultra better?
- Bigger battery: 8550 vs 7050 mAh
- Higher refresh rate: 165Hz vs 144Hz
- Lighter: 227g vs 235g
- Cheaper at launch: $420 vs $1299
- Better portability (40/100 vs 24/100)
Comparison verdict
Comparing the OPPO Find X9 Ultra vs the Redmi K90 Ultra, the OPPO Find X9 Ultra scores 19 points higher (92/100 vs 73/100). In the "camera" category, the OPPO Find X9 Ultra leads (96/100 vs 37/100). Value score: OPPO Find X9 Ultra — 94/100, Redmi K90 Ultra — 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 OPPO Find X9 Ultra is a bit better (99/100 vs 92/100). In the "display" category, the OPPO Find X9 Ultra and the Redmi K90 Ultra are nearly equal (98/100 vs 94/100). In the "camera" category, the OPPO Find X9 Ultra significantly outperforms the Redmi K90 Ultra (96/100 vs 37/100). In the "battery" category, the OPPO Find X9 Ultra is a bit better (87/100 vs 78/100). In the "portability" category, the Redmi K90 Ultra notably outperforms the OPPO Find X9 Ultra (40/100 vs 24/100).
Specs comparison
| Specification | OPPO Find X9 Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 4231988 | 3233695 | |
| Geekbench Single | 3639 | 3013 | |
| Geekbench Multi | 11047 | 9287 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 1440x3120 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 7050 mAh | 8550 mAh | |
| Charging | 100W | 100W | |
| Wireless charging | 50W | 0W | |
| DXOMark (camera) | 170 | — | |
| Main camera | 200 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 200 MP | 0 MP | |
| Front camera | 50 MP | 20 MP | |
| RAM | 16GB | 12GB / 16GB | |
| Storage | 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3600 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 8.7×None×None mm | 162.9×77.9×8.2 mm | |
| Weight | 235 g | 227 g | |
| Launch price | $1299 | $420 |
Camera comparison
OPPO Find X9 Ultra
- Main: 200MP f/1.65
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OPPO Find X9 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3120
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
OPPO Find X9 Ultra
- 7050 mAh
- NanoReview test: web browsing 16:45 hrs, total 37:00 hrs
- Wired: 100W
- Wireless: 50W
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OPPO Find X9 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
OPPO Find X9 Ultra leads Redmi K90 Ultra by 30.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $879. Redmi K90 Ultra was $879 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OPPO Find X9 Ultra is a bit better (99/100 vs 92/100).
display
In the "display" category, the OPPO Find X9 Ultra and the Redmi K90 Ultra are nearly equal (98/100 vs 94/100).
camera
In the "camera" category, the OPPO Find X9 Ultra significantly outperforms the Redmi K90 Ultra (96/100 vs 37/100).
battery
In the "battery" category, the OPPO Find X9 Ultra is a bit better (87/100 vs 78/100).
portability
In the "portability" category, the Redmi K90 Ultra notably outperforms the OPPO Find X9 Ultra (40/100 vs 24/100).
Frequently asked questions
Which is better: the OPPO Find X9 Ultra or the Redmi K90 Ultra?
The OPPO Find X9 Ultra is noticeably better than the Redmi K90 Ultra — the overall rating gap is 19 points.
What is the rating of the OPPO Find X9 Ultra and the Redmi K90 Ultra?
The OPPO Find X9 Ultra has a MobileRank rating of 92/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the OPPO Find X9 Ultra or the Redmi K90 Ultra?
The OPPO Find X9 Ultra leads on camera score (96/100 vs 37/100).
Which is more powerful: the OPPO Find X9 Ultra or the Redmi K90 Ultra?
The OPPO Find X9 Ultra leads on performance (99/100 vs 92/100).
Should you choose the OPPO Find X9 Ultra over the Redmi K90 Ultra?
The OPPO Find X9 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.