OPPO K15 Pro vs Redmi K90 Ultra
The OPPO K15 Pro (2026) runs on the MediaTek Dimensity 8500, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $436 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 67/100 (a 6-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7500); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,254,164); the OPPO K15 Pro is noticeably lighter (200g vs 227g).
Profile comparison
Category scores
OPPO K15 Pro
Redmi K90 Ultra
What makes OPPO K15 Pro better?
- Lighter: 200g vs 227g
- Better portability (56/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 2254164
- Better Geekbench Single: 3013 vs 1555
- Better Geekbench Multi: 9287 vs 6405
- Bigger battery: 8550 vs 7500 mAh
- Faster charging: 100W vs 80W
- Higher refresh rate: 165Hz vs 144Hz
- Cheaper at launch: $420 vs $436
- Higher performance (92/100 vs 78/100)
- Better camera (37/100 vs 35/100)
- Longer battery life (78/100 vs 69/100)
Comparison verdict
Comparing the OPPO K15 Pro vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 6 points higher (73/100 vs 67/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 78/100). Value score: OPPO K15 Pro — 60/100, 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 Redmi K90 Ultra is a bit better (92/100 vs 78/100). In the "display" category, both devices are on the same level — 94/100. In the "camera" category, the Redmi K90 Ultra and the OPPO K15 Pro are nearly equal (37/100 vs 35/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 69/100). In the "portability" category, the OPPO K15 Pro notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
Specs comparison
| Specification | OPPO K15 Pro | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8500 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2254164 | 3233695 | |
| Geekbench Single | 1555 | 3013 | |
| Geekbench Multi | 6405 | 9287 | |
| Display | 6.6" AMOLED | 6.8" AMOLED | |
| Resolution | 2760x1256 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 7500 mAh | 8550 mAh | |
| Charging | 80W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 1800 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 162.4×77.5×8.3 mm | 162.9×77.9×8.2 mm | |
| Weight | 200 g | 227 g | |
| Launch price | $436 | $420 |
Camera comparison
OPPO K15 Pro
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OPPO K15 Pro
- 6.6" AMOLED
- Resolution: 2760x1256
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
OPPO K15 Pro
- 7500 mAh
- Wired: 80W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OPPO K15 Pro and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads OPPO K15 Pro by 30.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $16. Redmi K90 Ultra was $16 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra is a bit better (92/100 vs 78/100).
display
In the "display" category, both devices are on the same level — 94/100.
camera
In the "camera" category, the Redmi K90 Ultra and the OPPO K15 Pro are nearly equal (37/100 vs 35/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 69/100).
portability
In the "portability" category, the OPPO K15 Pro notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
Frequently asked questions
Which is better: the OPPO K15 Pro or the Redmi K90 Ultra?
The Redmi K90 Ultra edges out the OPPO K15 Pro by just 6 points — the two devices are very close in overall level.
What is the rating of the OPPO K15 Pro and the Redmi K90 Ultra?
The OPPO K15 Pro has a MobileRank rating of 67/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the OPPO K15 Pro or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 78/100).
Should you choose the OPPO K15 Pro over the Redmi K90 Ultra?
The OPPO K15 Pro 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.