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 — 74/100 vs 31/100 (a 43-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 Vivo iQOO Z6 (China) is noticeably lighter (194g vs 225g).
Vivo iQOO Z6 (China)
Xiaomi 15 Ultra
- Better main camera: 64MP vs 50MP
- Lighter: 194g vs 225g
- Better design/ergonomics (57/100 vs 18/100)
- Better value for money (55/100 vs 41/100)
- Bigger battery: 6000 vs 4500 mAh
- Faster charging: 90W vs 80W
- Higher performance (71/100 vs 0/100)
- Better camera (87/100 vs 34/100)
- Longer battery life (72/100 vs 39/100)
Comparing the Vivo iQOO Z6 (China) vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 43 points higher (74/100 vs 31/100). In the "performance" category, the Xiaomi 15 Ultra leads (71/100 vs 0/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 34/100). In the "battery" category, the Xiaomi 15 Ultra leads (72/100 vs 39/100). In the "value for money" category, the Vivo iQOO Z6 (China) leads (55/100 vs 41/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (71/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (87/100 vs 34/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (72/100 vs 39/100). In the "design" category, the Vivo iQOO Z6 (China) significantly outperforms the Xiaomi 15 Ultra (57/100 vs 18/100). In the "value for money" category, the Vivo iQOO Z6 (China) is a bit better (55/100 vs 41/100).
| Specification | Vivo iQOO Z6 (China) | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 778G+ 5G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3030376 | |
| Geekbench Single | — | 3050 | |
| Geekbench Multi | — | 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 | |
| Price | — | $999 |
Vivo iQOO Z6 (China)
- Main: 64MP f/f/1.8
- Front: 8MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
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
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
Vivo iQOO Z6 (China)
Price unknownperformance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (71/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (87/100 vs 34/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (72/100 vs 39/100).
design
In the "design" category, the Vivo iQOO Z6 (China) significantly outperforms the Xiaomi 15 Ultra (57/100 vs 18/100).
value for money
In the "value for money" category, the Vivo iQOO Z6 (China) is a bit better (55/100 vs 41/100).
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 43 points (74/100 vs 31/100).
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 31/100, the Xiaomi 15 Ultra — 74/100.
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 34/100).
Which is more powerful: the Vivo iQOO Z6 (China) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (71/100 vs 0/100).
Should you choose the Vivo iQOO Z6 (China) over the Xiaomi 15 Ultra?
The Vivo iQOO Z6 (China) is a better fit for everyday use. The Xiaomi 15 Ultra is a better fit for active users, mobile photography enthusiasts.