ASUS ROG Phone 9 Pro vs Redmi K90 Ultra
The ASUS ROG Phone 9 Pro (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $1376 and $420. By overall MobileRank rating, the ASUS ROG Phone 9 Pro leads — 75/100 vs 73/100 (a 2-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5800); the ASUS ROG Phone 9 Pro is faster in AnTuTu (3,290,813 vs 3,233,695).
Profile comparison
Category scores
ASUS ROG Phone 9 Pro
Redmi K90 Ultra
What makes ASUS ROG Phone 9 Pro better?
- Higher AnTuTu: 3290813 vs 3233695
- Better Geekbench Single: 3211 vs 3013
- Better Geekbench Multi: 10106 vs 9287
- Higher refresh rate: 185Hz vs 165Hz
- Higher performance (93/100 vs 92/100)
- Better camera (56/100 vs 37/100)
What makes Redmi K90 Ultra better?
- Bigger battery: 8550 vs 5800 mAh
- Faster charging: 100W vs 65W
- Cheaper at launch: $420 vs $1376
- Longer battery life (78/100 vs 67/100)
- Better display (94/100 vs 89/100)
- Better portability (40/100 vs 33/100)
Comparison verdict
Comparing the ASUS ROG Phone 9 Pro vs the Redmi K90 Ultra, the ASUS ROG Phone 9 Pro scores 2 points higher (75/100 vs 73/100). In the "camera" category, the ASUS ROG Phone 9 Pro leads (56/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 67/100). Value score: ASUS ROG Phone 9 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 ASUS ROG Phone 9 Pro and the Redmi K90 Ultra are nearly equal (93/100 vs 92/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100). In the "camera" category, the ASUS ROG Phone 9 Pro notably outperforms the Redmi K90 Ultra (56/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 67/100). In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 33/100).
Specs comparison
| Specification | ASUS ROG Phone 9 Pro | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3290813 | 3233695 | |
| Geekbench Single | 3211 | 3013 | |
| Geekbench Multi | 10106 | 9287 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 2400x1080 | 1280x2772 | |
| Refresh rate | 185 Hz | 165 Hz | |
| Battery | 5800 mAh | 8550 mAh | |
| Charging | 65W | 100W | |
| Wireless charging | 15W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 13 MP | 8 MP | |
| Telephoto | 32 MP | 0 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 16GB / 24GB | 12GB / 16GB | |
| Storage | 512GB / 1TB | 256GB / 512GB | |
| OS | Android 15 / ROG UI | Android 16 | |
| Brightness (peak) | 2500 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 163.8×76.8×8.9 mm | 162.9×77.9×8.2 mm | |
| Weight | 227 g | 227 g | |
| Launch price | $1376 | $420 |
Camera comparison
ASUS ROG Phone 9 Pro
- Main: 50MP f/1.9
- Ultrawide: 13MP
- Telephoto: 32MP
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
ASUS ROG Phone 9 Pro
- 6.8" LTPO AMOLED
- Resolution: 2400x1080
- Refresh rate: 185 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
ASUS ROG Phone 9 Pro
- 5800 mAh
- Wired: 65W
- Wireless: 15W
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared ASUS ROG Phone 9 Pro and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
ASUS ROG Phone 9 Pro leads Redmi K90 Ultra by 1.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $956. Redmi K90 Ultra was $956 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the ASUS ROG Phone 9 Pro and the Redmi K90 Ultra are nearly equal (93/100 vs 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 ASUS ROG Phone 9 Pro notably outperforms the Redmi K90 Ultra (56/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 67/100).
portability
In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 33/100).
Frequently asked questions
Which is better: the ASUS ROG Phone 9 Pro or the Redmi K90 Ultra?
The ASUS ROG Phone 9 Pro edges out the Redmi K90 Ultra by just 2 points — the two devices are very close in overall level.
What is the rating of the ASUS ROG Phone 9 Pro and the Redmi K90 Ultra?
The ASUS ROG Phone 9 Pro has a MobileRank rating of 75/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the ASUS ROG Phone 9 Pro or the Redmi K90 Ultra?
The ASUS ROG Phone 9 Pro leads on camera score (56/100 vs 37/100).
Should you choose the ASUS ROG Phone 9 Pro over the Redmi K90 Ultra?
The ASUS ROG Phone 9 Pro is a better fit for gamers and power users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.