Vivo iQOO 15 vs Xiaomi 15 Ultra
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $599 and $999. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 85/100 (a 1-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 6000); the Vivo iQOO 15 is faster in AnTuTu (3,758,268 vs 3,030,376); the Vivo iQOO 15 is thinner (8.1mm vs 9.4mm).
Profile comparison
Category scores
Vivo iQOO 15
Xiaomi 15 Ultra
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 3030376
- Bigger battery: 7000 vs 6000 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 215g vs 225g
- Cheaper at launch: $599 vs $999
- Higher performance (94/100 vs 92/100)
- Longer battery life (85/100 vs 80/100)
- Better display (99/100 vs 90/100)
- Better portability (48/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Better Geekbench Single: 3050 vs 3013
- Better Geekbench Multi: 10200 vs 9287
- Faster wireless charging: 50W vs 40W
- Better camera (87/100 vs 78/100)
Comparison verdict
Comparing the Vivo iQOO 15 vs the Xiaomi 15 Ultra, the Vivo iQOO 15 scores 1 points higher (86/100 vs 85/100). Value score: Vivo iQOO 15 — 86/100, 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 and the Xiaomi 15 Ultra are nearly equal (94/100 vs 92/100). In the "display" category, the Vivo iQOO 15 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 is a bit better (85/100 vs 80/100). In the "portability" category, the Vivo iQOO 15 notably outperforms the Xiaomi 15 Ultra (48/100 vs 29/100).
Specs comparison
| Specification | Vivo iQOO 15 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3758268 | 3030376 | |
| Geekbench Single | 3013 | 3050 | |
| Geekbench Multi | 9287 | 10200 | |
| Display | 6.8" LTPO AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1440x3168 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 6000 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 40W | 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 | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 6000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.7×76.8×8.1 mm | 161.3×75.3×9.4 mm | |
| Weight | 215 g | 225 g | |
| Launch price | $599 | $999 |
Camera comparison
Vivo iQOO 15
- 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
- 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
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
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 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Xiaomi 15 Ultra by 24.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $400. Vivo iQOO 15 was $400 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 and the Xiaomi 15 Ultra are nearly equal (94/100 vs 92/100).
display
In the "display" category, the Vivo iQOO 15 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 is a bit better (85/100 vs 80/100).
portability
In the "portability" category, the Vivo iQOO 15 notably outperforms the Xiaomi 15 Ultra (48/100 vs 29/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 or the Xiaomi 15 Ultra?
The Vivo iQOO 15 edges out the Xiaomi 15 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO 15 and the Xiaomi 15 Ultra?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Vivo iQOO 15 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 78/100).
Should you choose the Vivo iQOO 15 over the Xiaomi 15 Ultra?
The Vivo iQOO 15 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.