Vivo iQOO 15 Ultra vs Vivo iQOO Z6 (China)
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo iQOO Z6 (China) (2022) runs on the Qualcomm Snapdragon 778G+ 5G. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 31/100 (a 53-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Vivo iQOO Z6 (China) is noticeably lighter (194g vs 227g).
Vivo iQOO 15 Ultra
Vivo iQOO Z6 (China)
- Bigger battery: 7400 vs 4500 mAh
- Faster charging: 120W vs 80W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (97/100 vs 0/100)
- Better camera (74/100 vs 34/100)
- Longer battery life (86/100 vs 39/100)
- Better main camera: 64MP vs 50MP
- Lighter: 194g vs 227g
- Better design/ergonomics (57/100 vs 16/100)
Comparing the Vivo iQOO 15 Ultra vs the Vivo iQOO Z6 (China), the Vivo iQOO 15 Ultra scores 53 points higher (84/100 vs 31/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 0/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 34/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (86/100 vs 39/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (97/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (74/100 vs 34/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (86/100 vs 39/100). In the "design" category, the Vivo iQOO Z6 (China) significantly outperforms the Vivo iQOO 15 Ultra (57/100 vs 16/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Vivo iQOO 15 Ultra | Vivo iQOO Z6 (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 778G+ 5G | |
| AnTuTu | 4602290 | — | |
| Geekbench Single | 3640 | — | |
| Geekbench Multi | 11033 | — | |
| Display | 6.8" LTPO AMOLED | 6.6" IPS LCD | |
| Resolution | 1440x3168 | 1080x2388 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 4500 mAh | |
| Charging | 120W | 80W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 8 MP | |
| RAM | 12GB / 16GB / 24GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 12, Origin OS Ocean | |
| Brightness (peak) | 8000 nits | 650 nits | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 164.0×75.8×8.6 mm | |
| Weight | 227 g | 194 g | |
| Price | $799 | — |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo iQOO Z6 (China)
- Main: 64MP f/f/1.8
- Front: 8MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo iQOO Z6 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo iQOO Z6 (China)
- 4500 mAh
- Wired: 80W
- No wireless charging
Vivo iQOO Z6 (China)
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (97/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (74/100 vs 34/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) (86/100 vs 39/100).
design
In the "design" category, the Vivo iQOO Z6 (China) significantly outperforms the Vivo iQOO 15 Ultra (57/100 vs 16/100).
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the Vivo iQOO 15 Ultra or the Vivo iQOO Z6 (China)?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6 (China) by 53 points (84/100 vs 31/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo iQOO Z6 (China)?
The Vivo iQOO 15 Ultra has a MobileRank rating of 84/100, the Vivo iQOO Z6 (China) — 31/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo iQOO Z6 (China)?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 34/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo iQOO Z6 (China)?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 0/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo iQOO Z6 (China)?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life. The Vivo iQOO Z6 (China) is a better fit for everyday use.