Vivo iQOO 15 Ultra vs Xiaomi 15 Ultra
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $799 and $999. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 85/100 (a 4-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 6000); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 3,030,376).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Xiaomi 15 Ultra
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 3030376
- Better Geekbench Single: 3639 vs 3050
- Better Geekbench Multi: 11047 vs 10200
- Bigger battery: 7400 vs 6000 mAh
- Faster charging: 120W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $799 vs $999
- Higher performance (99/100 vs 92/100)
- Longer battery life (92/100 vs 80/100)
- Better display (99/100 vs 90/100)
- Better portability (35/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Lighter: 225g vs 227g
- Better camera (87/100 vs 78/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Xiaomi 15 Ultra, the Vivo iQOO 15 Ultra scores 4 points higher (89/100 vs 85/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 80/100). Value score: Vivo iQOO 15 Ultra — 92/100, 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 Vivo iQOO 15 Ultra is a bit better (99/100 vs 92/100). In the "display" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 90/100). In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 78/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 80/100). In the "portability" category, the Vivo iQOO 15 Ultra is a bit better (35/100 vs 29/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 4602290 | 3030376 | |
| Geekbench Single | 3639 | 3050 | |
| Geekbench Multi | 11047 | 10200 | |
| Display | 6.8" LTPO AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1440x3168 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 6000 mAh | |
| Charging | 120W | 90W | |
| Wireless charging | 50W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB / 24GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 8000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.7×76.8×8.7 mm | 161.3×75.3×9.4 mm | |
| Weight | 227 g | 225 g | |
| Launch price | $799 | $999 |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
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 Vivo iQOO 15 Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Xiaomi 15 Ultra by 51.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $200. Vivo iQOO 15 Ultra was $200 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 92/100).
display
In the "display" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 90/100).
camera
In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 78/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 80/100).
portability
In the "portability" category, the Vivo iQOO 15 Ultra is a bit better (35/100 vs 29/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Xiaomi 15 Ultra?
The Vivo iQOO 15 Ultra edges out the Xiaomi 15 Ultra by just 4 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO 15 Ultra and the Xiaomi 15 Ultra?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 78/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Xiaomi 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 92/100).
Should you choose the Vivo iQOO 15 Ultra over the Xiaomi 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. 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.