Vivo iQOO 15 Ultra vs Vivo iQOO Z6x
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo iQOO Z6x (2022) runs on the MediaTek Dimensity 810. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 43/100 (a 46-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 569,913); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Vivo iQOO Z6x doesn't; the Vivo iQOO Z6x is noticeably lighter (204g vs 227g).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Vivo iQOO Z6x
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 569913
- Better Geekbench Single: 3639 vs 684
- Better Geekbench Multi: 11047 vs 1900
- Bigger battery: 7400 vs 6000 mAh
- Faster charging: 120W vs 44W
- Higher performance (99/100 vs 42/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (92/100 vs 56/100)
- Better display (99/100 vs 57/100)
What makes Vivo iQOO Z6x better?
- Lighter: 204g vs 227g
- Better portability (43/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Vivo iQOO Z6x, the Vivo iQOO 15 Ultra scores 46 points higher (89/100 vs 43/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 42/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 56/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (99/100 vs 42/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (99/100 vs 57/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (92/100 vs 56/100). In the "portability" category, the Vivo iQOO Z6x is a bit better (43/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Vivo iQOO Z6x | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 810 | |
| AnTuTu | 4602290 | 569913 | |
| Geekbench Single | 3639 | 684 | |
| Geekbench Multi | 11047 | 1900 | |
| Display | 6.8" LTPO AMOLED | 6.6" IPS LCD | |
| Resolution | 1440x3168 | 1080x2408 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7400 mAh | 6000 mAh | |
| Charging | 120W | 44W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 8 MP | |
| RAM | 12GB / 16GB / 24GB | 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 11, Origin OS Ocean | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 163.9×75.3×9.3 mm | |
| Weight | 227 g | 204 g | |
| Launch price | $799 | — |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo iQOO Z6x
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo iQOO Z6x
- 6.6" IPS LCD
- Resolution: 1080x2408
- Refresh rate: —
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo iQOO Z6x
- 6000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 Ultra and Vivo iQOO Z6x, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo iQOO Z6x by 707.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z6x
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (99/100 vs 42/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (99/100 vs 57/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x (92/100 vs 56/100).
portability
In the "portability" category, the Vivo iQOO Z6x is a bit better (43/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Vivo iQOO Z6x?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z6x by 46 points (89/100 vs 43/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo iQOO Z6x?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo iQOO Z6x — 43/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo iQOO Z6x?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 30/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo iQOO Z6x?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 42/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo iQOO Z6x?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.