OPPO Find X8 Ultra vs Redmi K90 Ultra
The OPPO Find X8 Ultra (2025) runs on the Snapdragon 8 Elite, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $999 and $420. By overall MobileRank rating, the OPPO Find X8 Ultra leads — 86/100 vs 75/100 (a 11-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6100); the OPPO Find X8 Ultra is faster in AnTuTu (3,183,101 vs 3,119,308).
OPPO Find X8 Ultra
Redmi K90 Ultra
- Higher AnTuTu: 3183101 vs 3119308
- Lighter: 226g vs 227g
- Better camera (94/100 vs 37/100)
- Bigger battery: 8550 vs 6100 mAh
- Faster charging: 100W vs 80W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper: $420 vs $999
- Longer battery life (92/100 vs 78/100)
- Better display (94/100 vs 89/100)
- Better portability (40/100 vs 35/100)
- Better value for money (86/100 vs 84/100)
Comparing the OPPO Find X8 Ultra vs the Redmi K90 Ultra, the OPPO Find X8 Ultra scores 11 points higher (86/100 vs 75/100). In the "camera" category, the OPPO Find X8 Ultra leads (94/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 78/100). In the "performance" category, both devices are on the same level — 92/100. In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100). In the "camera" category, the OPPO Find X8 Ultra significantly outperforms the Redmi K90 Ultra (94/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra is a bit better (92/100 vs 78/100). In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 35/100). In the "value for money" category, the Redmi K90 Ultra and the OPPO Find X8 Ultra are nearly equal (86/100 vs 84/100).
| Specification | OPPO Find X8 Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3183101 | 3119308 | |
| Geekbench Single | 3041 | 3041 | |
| Geekbench Multi | 9494 | 9494 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 3168x1440 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 6100 mAh | 8550 mAh | |
| Charging | 80W | 100W | |
| Wireless charging | 50W | — | |
| DXOMark (camera) | 168 | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 2500 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 163.1×76.8×8.8 mm | 162.9×77.9×8.2 mm | |
| Weight | 226 g | 227 g | |
| Price | $999 | $420 |
OPPO Find X8 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
OPPO Find X8 Ultra
- 6.8" LTPO AMOLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
OPPO Find X8 Ultra
- 6100 mAh
- NanoReview test: web browsing 13:45 hrs, total 28:25 hrs
- Wired: 80W
- Wireless: 50W
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
We compared OPPO Find X8 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
OPPO Find X8 Ultra leads Redmi K90 Ultra by 2.0% in our overall performance rating.
Price difference: $579. Redmi K90 Ultra is cheaper by $579.
performance
In the "performance" category, both devices are on the same level — 92/100.
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100).
camera
In the "camera" category, the OPPO Find X8 Ultra significantly outperforms the Redmi K90 Ultra (94/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (92/100 vs 78/100).
portability
In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 35/100).
value for money
In the "value for money" category, the Redmi K90 Ultra and the OPPO Find X8 Ultra are nearly equal (86/100 vs 84/100).
Which is better: the OPPO Find X8 Ultra or the Redmi K90 Ultra?
The OPPO Find X8 Ultra is noticeably better than the Redmi K90 Ultra — the overall rating gap is 11 points.
What is the rating of the OPPO Find X8 Ultra and the Redmi K90 Ultra?
The OPPO Find X8 Ultra has a MobileRank rating of 86/100, the Redmi K90 Ultra — 75/100.
Which has the better camera: the OPPO Find X8 Ultra or the Redmi K90 Ultra?
The OPPO Find X8 Ultra leads on camera score (94/100 vs 37/100).
Should you choose the OPPO Find X8 Ultra over the Redmi K90 Ultra?
The OPPO Find X8 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, budget-conscious buyers.