Vivo iQOO Z6 (China) vs Xiaomi 15 Ultra
The Vivo iQOO Z6 (China) (2022) runs on the Qualcomm Snapdragon 778G+ 5G, 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 50/100 (a 35-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 4500); the main camera is 64 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 820,210); the Vivo iQOO Z6 (China) is noticeably lighter (194g vs 225g).
Profile comparison
Category scores
Vivo iQOO Z6 (China)
Xiaomi 15 Ultra
What makes Vivo iQOO Z6 (China) better?
- Better main camera: 64MP vs 50MP
- Lighter: 194g vs 225g
- Better portability (56/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 820210
- Better Geekbench Single: 3050 vs 1059
- Better Geekbench Multi: 10200 vs 3012
- Bigger battery: 6000 vs 4500 mAh
- Faster charging: 90W vs 80W
- Higher performance (92/100 vs 55/100)
- Better camera (87/100 vs 37/100)
- Longer battery life (80/100 vs 45/100)
- Better display (90/100 vs 66/100)
Comparison verdict
Comparing the Vivo iQOO Z6 (China) vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 35 points higher (85/100 vs 50/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 55/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 37/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 45/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (92/100 vs 55/100). In the "display" category, the Xiaomi 15 Ultra notably outperforms the Vivo iQOO Z6 (China) (90/100 vs 66/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (87/100 vs 37/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (80/100 vs 45/100). In the "portability" category, the Vivo iQOO Z6 (China) notably outperforms the Xiaomi 15 Ultra (56/100 vs 29/100).
Specs comparison
| Specification | Vivo iQOO Z6 (China) | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 778G+ 5G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 820210 | 3030376 | |
| Geekbench Single | 1059 | 3050 | |
| Geekbench Multi | 3012 | 10200 | |
| Display | 6.6" IPS LCD | 6.7" LTPO AMOLED | |
| Resolution | 1080x2388 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4500 mAh | 6000 mAh | |
| Charging | 80W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 8GB / 12GB | 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 12, Origin OS Ocean | Android 15 / HyperOS 2 | |
| Brightness (peak) | 650 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 164.0×75.8×8.6 mm | 161.3×75.3×9.4 mm | |
| Weight | 194 g | 225 g | |
| Launch price | — | $999 |
Camera comparison
Vivo iQOO Z6 (China)
- Main: 64MP f/1.8
- Front: 8MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Vivo iQOO Z6 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO Z6 (China)
- 4500 mAh
- Wired: 80W
- 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 Vivo iQOO Z6 (China) and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Vivo iQOO Z6 (China) by 72.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z6 (China)
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (92/100 vs 55/100).
display
In the "display" category, the Xiaomi 15 Ultra notably outperforms the Vivo iQOO Z6 (China) (90/100 vs 66/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (87/100 vs 37/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (80/100 vs 45/100).
portability
In the "portability" category, the Vivo iQOO Z6 (China) notably outperforms the Xiaomi 15 Ultra (56/100 vs 29/100).
Frequently asked questions
Which is better: the Vivo iQOO Z6 (China) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) by 35 points (85/100 vs 50/100).
What is the rating of the Vivo iQOO Z6 (China) and the Xiaomi 15 Ultra?
The Vivo iQOO Z6 (China) has a MobileRank rating of 50/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Vivo iQOO Z6 (China) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 37/100).
Which is more powerful: the Vivo iQOO Z6 (China) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Vivo iQOO Z6 (China) over the Xiaomi 15 Ultra?
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.