Vivo iQOO 15 Ultra vs Vivo Z3i
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo Z3i (2018) runs on the MediaTek Helio P60. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 26/100 (a 63-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 3315); the main camera is 50 MP vs 16 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 314,537); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Vivo Z3i doesn't; the Vivo Z3i is noticeably lighter (164g vs 227g).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Vivo Z3i
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 314537
- Better Geekbench Single: 3639 vs 341
- Better Geekbench Multi: 11047 vs 779
- Bigger battery: 7400 vs 3315 mAh
- Faster charging: 120W vs 18W
- Better main camera: 50MP vs 16MP
- Higher performance (99/100 vs 20/100)
- Better camera (78/100 vs 17/100)
- Longer battery life (92/100 vs 12/100)
- Better display (99/100 vs 57/100)
What makes Vivo Z3i better?
- Lighter: 164g vs 227g
- Better portability (80/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Vivo Z3i, the Vivo iQOO 15 Ultra scores 63 points higher (89/100 vs 26/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 20/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 17/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 12/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (99/100 vs 20/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (99/100 vs 57/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (78/100 vs 17/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (92/100 vs 12/100). In the "portability" category, the Vivo Z3i significantly outperforms the Vivo iQOO 15 Ultra (80/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Vivo Z3i | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Helio P60 | |
| AnTuTu | 4602290 | 314537 | |
| Geekbench Single | 3639 | 341 | |
| Geekbench Multi | 11047 | 779 | |
| Display | 6.8" LTPO AMOLED | 6.3" IPS LCD | |
| Resolution | 1440x3168 | 1080x2280 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7400 mAh | 3315 mAh | |
| Charging | 120W | 18W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 16 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 24 MP | |
| RAM | 12GB / 16GB / 24GB | 6GB | |
| Storage | 256GB / 512GB / 1TB | 128GB | |
| OS | Android 16 | Android 8.1 (Oreo) | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 156.0×75.6×8.1 mm | |
| Weight | 227 g | 164 g | |
| Launch price | $799 | — |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Z3i
- Main: 16MP f/2.0
- Front: 24MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Z3i
- 6.3" IPS LCD
- Resolution: 1080x2280
- Refresh rate: —
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo Z3i
- 3315 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 Ultra and Vivo Z3i, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo Z3i by 1363.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Z3i
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (99/100 vs 20/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (99/100 vs 57/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (78/100 vs 17/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i (92/100 vs 12/100).
portability
In the "portability" category, the Vivo Z3i significantly outperforms the Vivo iQOO 15 Ultra (80/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Vivo Z3i?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo Z3i by 63 points (89/100 vs 26/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo Z3i?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo Z3i — 26/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo Z3i?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 17/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo Z3i?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 20/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo Z3i?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.