Vivo iQOO 15 vs Vivo Z3i
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Z3i (2018) runs on the MediaTek Helio P60. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 26/100 (a 60-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 3315); the main camera is 50 MP vs 16 MP; the Vivo iQOO 15 is faster in AnTuTu (3,758,268 vs 314,537); the Vivo iQOO 15 has NFC for contactless payments, the Vivo Z3i doesn't; the Vivo Z3i is noticeably lighter (164g vs 215g).
Profile comparison
Category scores
Vivo iQOO 15
Vivo Z3i
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 314537
- Better Geekbench Single: 3013 vs 341
- Better Geekbench Multi: 9287 vs 779
- Bigger battery: 7000 vs 3315 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 16MP
- Higher performance (94/100 vs 20/100)
- Better camera (78/100 vs 17/100)
- Longer battery life (85/100 vs 12/100)
- Better display (99/100 vs 57/100)
What makes Vivo Z3i better?
- Lighter: 164g vs 215g
- Better portability (80/100 vs 48/100)
Comparison verdict
Comparing the Vivo iQOO 15 vs the Vivo Z3i, the Vivo iQOO 15 scores 60 points higher (86/100 vs 26/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 20/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 17/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 12/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (94/100 vs 20/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (99/100 vs 57/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (78/100 vs 17/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (85/100 vs 12/100). In the "portability" category, the Vivo Z3i significantly outperforms the Vivo iQOO 15 (80/100 vs 48/100).
Specs comparison
| Specification | Vivo iQOO 15 | Vivo Z3i | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Helio P60 | |
| AnTuTu | 3758268 | 314537 | |
| Geekbench Single | 3013 | 341 | |
| Geekbench Multi | 9287 | 779 | |
| Display | 6.8" LTPO AMOLED | 6.3" IPS LCD | |
| Resolution | 1440x3168 | 1080x2280 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7000 mAh | 3315 mAh | |
| Charging | 100W | 18W | |
| Wireless charging | 40W | 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 | 6GB | |
| Storage | 256GB / 512GB / 1TB | 128GB | |
| OS | Android 16 | Android 8.1 (Oreo) | |
| Brightness (peak) | 6000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.1 mm | 156.0×75.6×8.1 mm | |
| Weight | 215 g | 164 g | |
| Launch price | $599 | — |
Camera comparison
Vivo iQOO 15
- 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
- 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
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Vivo Z3i
- 3315 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 and Vivo Z3i, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo Z3i by 1094.9% 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 significantly outperforms the Vivo Z3i (94/100 vs 20/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (99/100 vs 57/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (78/100 vs 17/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Vivo Z3i (85/100 vs 12/100).
portability
In the "portability" category, the Vivo Z3i significantly outperforms the Vivo iQOO 15 (80/100 vs 48/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 or the Vivo Z3i?
The Vivo iQOO 15 significantly outperforms the Vivo Z3i by 60 points (86/100 vs 26/100).
What is the rating of the Vivo iQOO 15 and the Vivo Z3i?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Vivo Z3i — 26/100.
Which has the better camera: the Vivo iQOO 15 or the Vivo Z3i?
The Vivo iQOO 15 leads on camera score (78/100 vs 17/100).
Which is more powerful: the Vivo iQOO 15 or the Vivo Z3i?
The Vivo iQOO 15 leads on performance (94/100 vs 20/100).
Should you choose the Vivo iQOO 15 over the Vivo Z3i?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.