Vivo iQOO 15 Ultra vs Vivo iQOO Z8
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo iQOO Z8 (2023) runs on the MediaTek Dimensity 8200. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 55/100 (a 34-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5000); the main camera is 50 MP vs 64 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 1,240,821); the Vivo iQOO Z8 is noticeably lighter (200g vs 227g).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Vivo iQOO Z8
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 1240821
- Better Geekbench Single: 3639 vs 1239
- Better Geekbench Multi: 11047 vs 3962
- Bigger battery: 7400 vs 5000 mAh
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 64/100)
- Better camera (78/100 vs 40/100)
- Longer battery life (92/100 vs 52/100)
- Better display (99/100 vs 66/100)
What makes Vivo iQOO Z8 better?
- Better main camera: 64MP vs 50MP
- Lighter: 200g vs 227g
- Better portability (51/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Vivo iQOO Z8, the Vivo iQOO 15 Ultra scores 34 points higher (89/100 vs 55/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 64/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 40/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 52/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (99/100 vs 64/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (99/100 vs 66/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (78/100 vs 40/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (92/100 vs 52/100). In the "portability" category, the Vivo iQOO Z8 notably outperforms the Vivo iQOO 15 Ultra (51/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Vivo iQOO Z8 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 8200 | |
| AnTuTu | 4602290 | 1240821 | |
| Geekbench Single | 3639 | 1239 | |
| Geekbench Multi | 11047 | 3962 | |
| Display | 6.8" LTPO AMOLED | 6.6" LCDIPS LCD | |
| Resolution | 1440x3168 | 1080x2388 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 5000 mAh | |
| Charging | 120W | — | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 16 MP | |
| RAM | 12GB / 16GB / 24GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 13, OriginOS 3 | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 164.6×75.8×8.8 mm | |
| Weight | 227 g | 200 g | |
| Launch price | $799 | — |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo iQOO Z8
- Main: 64MP f/1.8
- Front: 16MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo iQOO Z8
- 6.6" LCDIPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo iQOO Z8
- 5000 mAh
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 Ultra and Vivo iQOO Z8, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo iQOO Z8 by 270.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z8
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (99/100 vs 64/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (99/100 vs 66/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (78/100 vs 40/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 (92/100 vs 52/100).
portability
In the "portability" category, the Vivo iQOO Z8 notably outperforms the Vivo iQOO 15 Ultra (51/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Vivo iQOO Z8?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo iQOO Z8 by 34 points (89/100 vs 55/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo iQOO Z8?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo iQOO Z8 — 55/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo iQOO Z8?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 40/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo iQOO Z8?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 64/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo iQOO Z8?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo iQOO Z8 is a better fit for active users.