ASUS ROG Phone 9 vs Xiaomi 15 Ultra
The ASUS ROG Phone 9 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $999 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 71/100 (a 14-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5800); the ASUS ROG Phone 9 is faster in AnTuTu (3,136,217 vs 3,030,376).
Profile comparison
Category scores
ASUS ROG Phone 9
Xiaomi 15 Ultra
What makes ASUS ROG Phone 9 better?
- Higher AnTuTu: 3136217 vs 3030376
- Better Geekbench Single: 3100 vs 3050
- Higher refresh rate: 185Hz vs 120Hz
- Better portability (33/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Better Geekbench Multi: 10200 vs 9900
- Bigger battery: 6000 vs 5800 mAh
- Faster charging: 90W vs 65W
- Faster wireless charging: 50W vs 15W
- Lighter: 225g vs 227g
- Better camera (87/100 vs 42/100)
- Longer battery life (80/100 vs 67/100)
- Better display (90/100 vs 89/100)
Comparison verdict
Comparing the ASUS ROG Phone 9 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 14 points higher (85/100 vs 71/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 42/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 67/100). Value score: ASUS ROG Phone 9 — 52/100, Xiaomi 15 Ultra — 80/100; 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, both devices are on the same level — 92/100. In the "display" category, the Xiaomi 15 Ultra and the ASUS ROG Phone 9 are nearly equal (90/100 vs 89/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the ASUS ROG Phone 9 (87/100 vs 42/100). In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 67/100). In the "portability" category, the ASUS ROG Phone 9 and the Xiaomi 15 Ultra are nearly equal (33/100 vs 29/100).
Specs comparison
| Specification | ASUS ROG Phone 9 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3136217 | 3030376 | |
| Geekbench Single | 3100 | 3050 | |
| Geekbench Multi | 9900 | 10200 | |
| Display | 6.8" LTPO AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 2400x1080 | 3200x1440 | |
| Refresh rate | 185 Hz | 120 Hz | |
| Battery | 5800 mAh | 6000 mAh | |
| Charging | 65W | 90W | |
| Wireless charging | 15W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 13 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB / 24GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 15 / ROG UI | Android 15 / HyperOS 2 | |
| Brightness (peak) | 2500 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.8×76.8×8.9 mm | 161.3×75.3×9.4 mm | |
| Weight | 227 g | 225 g | |
| Launch price | $999 | $999 |
Camera comparison
ASUS ROG Phone 9
- Main: 50MP f/1.9
- Ultrawide: 13MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
ASUS ROG Phone 9
- 6.8" LTPO AMOLED
- Resolution: 2400x1080
- Refresh rate: 185 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
ASUS ROG Phone 9
- 5800 mAh
- Wired: 65W
- Wireless: 15W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared ASUS ROG Phone 9 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
ASUS ROG Phone 9 leads Xiaomi 15 Ultra by 3.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $0. Same launch price.
Detailed category analysis
performance
In the "performance" category, both devices are on the same level — 92/100.
display
In the "display" category, the Xiaomi 15 Ultra and the ASUS ROG Phone 9 are nearly equal (90/100 vs 89/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the ASUS ROG Phone 9 (87/100 vs 42/100).
battery
In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 67/100).
portability
In the "portability" category, the ASUS ROG Phone 9 and the Xiaomi 15 Ultra are nearly equal (33/100 vs 29/100).
Frequently asked questions
Which is better: the ASUS ROG Phone 9 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the ASUS ROG Phone 9 — the overall rating gap is 14 points.
What is the rating of the ASUS ROG Phone 9 and the Xiaomi 15 Ultra?
The ASUS ROG Phone 9 has a MobileRank rating of 71/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the ASUS ROG Phone 9 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 42/100).
Should you choose the ASUS ROG Phone 9 over the Xiaomi 15 Ultra?
The ASUS ROG Phone 9 is a better fit for gamers and power users. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.