ASUS ROG Phone 5 Ultimate vs Xiaomi 15 Ultra
The ASUS ROG Phone 5 Ultimate (2021) runs on the Qualcomm Snapdragon 888, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $1299 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 60/100 (a 25-point difference). Key differences: the main camera is 64 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 1,135,878).
Profile comparison
Category scores
ASUS ROG Phone 5 Ultimate
Xiaomi 15 Ultra
What makes ASUS ROG Phone 5 Ultimate better?
- Better main camera: 64MP vs 50MP
- Higher refresh rate: 144Hz vs 120Hz
- Overall rating 60/100
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 1135878
- Better Geekbench Single: 3050 vs 1500
- Better Geekbench Multi: 10200 vs 3537
- Faster charging: 90W vs 65W
- Lighter: 225g vs 238g
- Cheaper at launch: $999 vs $1299
- Higher performance (92/100 vs 64/100)
- Better camera (87/100 vs 48/100)
- Longer battery life (80/100 vs 60/100)
- Better display (90/100 vs 89/100)
- Better portability (29/100 vs 20/100)
Comparison verdict
Comparing the ASUS ROG Phone 5 Ultimate vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 25 points higher (85/100 vs 60/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 64/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 48/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 60/100). Value score: ASUS ROG Phone 5 Ultimate — 30/100, 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, the Xiaomi 15 Ultra notably outperforms the ASUS ROG Phone 5 Ultimate (92/100 vs 64/100). In the "display" category, the Xiaomi 15 Ultra and the ASUS ROG Phone 5 Ultimate are nearly equal (90/100 vs 89/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the ASUS ROG Phone 5 Ultimate (87/100 vs 48/100). In the "battery" category, the Xiaomi 15 Ultra notably outperforms the ASUS ROG Phone 5 Ultimate (80/100 vs 60/100). In the "portability" category, the Xiaomi 15 Ultra is a bit better (29/100 vs 20/100).
Specs comparison
| Specification | ASUS ROG Phone 5 Ultimate | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1135878 | 3030376 | |
| Geekbench Single | 1500 | 3050 | |
| Geekbench Multi | 3537 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 2448x1080 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 6000 mAh | 6000 mAh | |
| Charging | 65W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 13 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 24 MP | 32 MP | |
| RAM | 18GB | 16GB | |
| Storage | 512GB | 256GB / 512GB / 1TB | |
| OS | Android 11 / ROG UI | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1200 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 172.8×77.3×10.3 mm | 161.3×75.3×9.4 mm | |
| Weight | 238 g | 225 g | |
| Launch price | $1299 | $999 |
Camera comparison
ASUS ROG Phone 5 Ultimate
- Main: 64MP f/1.8
- Ultrawide: 13MP
- Front: 24MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
ASUS ROG Phone 5 Ultimate
- 6.8" AMOLED
- Resolution: 2448x1080
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
ASUS ROG Phone 5 Ultimate
- 6000 mAh
- Wired: 65W
- No wireless charging
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 5 Ultimate and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads ASUS ROG Phone 5 Ultimate by 62.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $300. Xiaomi 15 Ultra was $300 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra notably outperforms the ASUS ROG Phone 5 Ultimate (92/100 vs 64/100).
display
In the "display" category, the Xiaomi 15 Ultra and the ASUS ROG Phone 5 Ultimate are nearly equal (90/100 vs 89/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the ASUS ROG Phone 5 Ultimate (87/100 vs 48/100).
battery
In the "battery" category, the Xiaomi 15 Ultra notably outperforms the ASUS ROG Phone 5 Ultimate (80/100 vs 60/100).
portability
In the "portability" category, the Xiaomi 15 Ultra is a bit better (29/100 vs 20/100).
Frequently asked questions
Which is better: the ASUS ROG Phone 5 Ultimate or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the ASUS ROG Phone 5 Ultimate by 25 points (85/100 vs 60/100).
What is the rating of the ASUS ROG Phone 5 Ultimate and the Xiaomi 15 Ultra?
The ASUS ROG Phone 5 Ultimate has a MobileRank rating of 60/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the ASUS ROG Phone 5 Ultimate or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 48/100).
Which is more powerful: the ASUS ROG Phone 5 Ultimate or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 64/100).
Should you choose the ASUS ROG Phone 5 Ultimate over the Xiaomi 15 Ultra?
The ASUS ROG Phone 5 Ultimate is a better fit for active 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.