ASUS Asus Zenfone 12 Ultra vs Xiaomi 15 Ultra
The ASUS Asus Zenfone 12 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 75/100 (a 10-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5500); the ASUS Asus Zenfone 12 Ultra is faster in AnTuTu (3,119,308 vs 3,030,376).
ASUS Asus Zenfone 12 Ultra
Xiaomi 15 Ultra
- Higher AnTuTu: 3119308 vs 3030376
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 220g vs 225g
- Better portability (38/100 vs 29/100)
- Better Geekbench Single: 3050 vs 3041
- Better Geekbench Multi: 10200 vs 9494
- Bigger battery: 6000 vs 5500 mAh
- Faster charging: 90W vs 65W
- Faster wireless charging: 50W vs 15W
- Better camera (87/100 vs 56/100)
- Longer battery life (80/100 vs 66/100)
- Better display (90/100 vs 89/100)
Comparing the ASUS Asus Zenfone 12 Ultra vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 10 points higher (85/100 vs 75/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 56/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 66/100). In the "performance" category, both devices are on the same level — 92/100. In the "display" category, the Xiaomi 15 Ultra and the ASUS Asus Zenfone 12 Ultra are nearly equal (90/100 vs 89/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the ASUS Asus Zenfone 12 Ultra (87/100 vs 56/100). In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 66/100). In the "portability" category, the ASUS Asus Zenfone 12 Ultra is a bit better (38/100 vs 29/100).
| Specification | ASUS Asus Zenfone 12 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3119308 | 3030376 | |
| Geekbench Single | 3041 | 3050 | |
| Geekbench Multi | 9494 | 10200 | |
| Display | 6.8" LTPO AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1080x2400 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 5500 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 | 32 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 15, up to 2 major Android upgrades | Android 15 / HyperOS 2 | |
| Brightness (peak) | 2500 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.8×77.0×8.9 mm | 161.3×75.3×9.4 mm | |
| Weight | 220 g | 225 g | |
| Price | — | $999 |
ASUS Asus Zenfone 12 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 13MP
- Telephoto: 32MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
ASUS Asus Zenfone 12 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1080x2400
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
ASUS Asus Zenfone 12 Ultra
- 5500 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
We compared ASUS Asus Zenfone 12 Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
ASUS Asus Zenfone 12 Ultra leads Xiaomi 15 Ultra by 2.9% in our overall performance rating.
ASUS Asus Zenfone 12 Ultra
Price unknownperformance
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 Asus Zenfone 12 Ultra are nearly equal (90/100 vs 89/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the ASUS Asus Zenfone 12 Ultra (87/100 vs 56/100).
battery
In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 66/100).
portability
In the "portability" category, the ASUS Asus Zenfone 12 Ultra is a bit better (38/100 vs 29/100).
Which is better: the ASUS Asus Zenfone 12 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the ASUS Asus Zenfone 12 Ultra — the overall rating gap is 10 points.
What is the rating of the ASUS Asus Zenfone 12 Ultra and the Xiaomi 15 Ultra?
The ASUS Asus Zenfone 12 Ultra has a MobileRank rating of 75/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the ASUS Asus Zenfone 12 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 56/100).
Should you choose the ASUS Asus Zenfone 12 Ultra over the Xiaomi 15 Ultra?
The ASUS Asus Zenfone 12 Ultra 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.