Vivo iQOO 15T vs Vivo Y78 (t1)
The Vivo iQOO 15T (2026) runs on the MediaTek Dimensity 9500, while the Vivo Y78 (t1) (2023) runs on the MediaTek Dimensity 6020. By overall MobileRank rating, the Vivo iQOO 15T leads — 82/100 vs 41/100 (a 41-point difference). Key differences: the Vivo iQOO 15T has the bigger battery (8000 mAh vs 5000); the main camera is 200 MP vs 50 MP; the Vivo iQOO 15T is faster in AnTuTu (4,704,310 vs 530,583); the Vivo iQOO 15T has NFC for contactless payments, the Vivo Y78 (t1) doesn't; the Vivo Y78 (t1) is noticeably lighter (190g vs 216g).
Profile comparison
Category scores
Vivo iQOO 15T
Vivo Y78 (t1)
What makes Vivo iQOO 15T better?
- Higher AnTuTu: 4704310 vs 530583
- Better Geekbench Single: 3293 vs 724
- Better Geekbench Multi: 10243 vs 2032
- Bigger battery: 8000 vs 5000 mAh
- Better main camera: 200MP vs 50MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (97/100 vs 42/100)
- Better camera (65/100 vs 30/100)
- Longer battery life (75/100 vs 52/100)
- Better display (99/100 vs 42/100)
What makes Vivo Y78 (t1) better?
- Lighter: 190g vs 216g
- Better portability (65/100 vs 44/100)
Comparison verdict
Comparing the Vivo iQOO 15T vs the Vivo Y78 (t1), the Vivo iQOO 15T scores 41 points higher (82/100 vs 41/100). In the "performance" category, the Vivo iQOO 15T leads (97/100 vs 42/100). In the "camera" category, the Vivo iQOO 15T leads (65/100 vs 30/100). In the "battery" category, the Vivo iQOO 15T leads (75/100 vs 52/100). In the "performance" category, the Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) (97/100 vs 42/100). In the "display" category, the Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) (99/100 vs 42/100). In the "camera" category, the Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) (65/100 vs 30/100). In the "battery" category, the Vivo iQOO 15T notably outperforms the Vivo Y78 (t1) (75/100 vs 52/100). In the "portability" category, the Vivo Y78 (t1) notably outperforms the Vivo iQOO 15T (65/100 vs 44/100).
Specs comparison
| Specification | Vivo iQOO 15T | Vivo Y78 (t1) | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Dimensity 6020 | |
| AnTuTu | 4704310 | 530583 | |
| Geekbench Single | 3293 | 724 | |
| Geekbench Multi | 10243 | 2032 | |
| Display | 6.8" LTPO AMOLED | 6.6" LCD IPS | |
| Resolution | 1440x3168 | 1080x2388 | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 8000 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 200 MP | 50 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Front camera | 16 MP | 8 MP | |
| RAM | 12GB / 16GB | — | |
| Storage | 256GB / 512GB / 1TB | 256GB | |
| OS | Android 16 | Android 13 Tiramisu | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | — | 164.1×76.2×8.0 mm | |
| Weight | 216 g | 190 g | |
| Launch price | $499 | — |
Camera comparison
Vivo iQOO 15T
- Main: 200MP f/1.8
- Ultrawide: 50MP
- Front: 16MP
Vivo Y78 (t1)
- Main: 50MP
- Front: 8MP
Display comparison
Vivo iQOO 15T
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y78 (t1)
- 6.6" LCD IPS
- Resolution: 1080x2388
- Refresh rate: 60 Hz
Battery and charging
Vivo iQOO 15T
- 8000 mAh
- Wired: 100W
- No wireless charging
Vivo Y78 (t1)
- 5000 mAh
- No wireless charging
Overall performance score
We compared Vivo iQOO 15T and Vivo Y78 (t1), covering their specs and all relevant benchmarks.
Vivo iQOO 15T leads Vivo Y78 (t1) by 786.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Y78 (t1)
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) (97/100 vs 42/100).
display
In the "display" category, the Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) (99/100 vs 42/100).
camera
In the "camera" category, the Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) (65/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15T notably outperforms the Vivo Y78 (t1) (75/100 vs 52/100).
portability
In the "portability" category, the Vivo Y78 (t1) notably outperforms the Vivo iQOO 15T (65/100 vs 44/100).
Frequently asked questions
Which is better: the Vivo iQOO 15T or the Vivo Y78 (t1)?
The Vivo iQOO 15T significantly outperforms the Vivo Y78 (t1) by 41 points (82/100 vs 41/100).
What is the rating of the Vivo iQOO 15T and the Vivo Y78 (t1)?
The Vivo iQOO 15T has a MobileRank rating of 82/100, the Vivo Y78 (t1) — 41/100.
Which has the better camera: the Vivo iQOO 15T or the Vivo Y78 (t1)?
The Vivo iQOO 15T leads on camera score (65/100 vs 30/100).
Which is more powerful: the Vivo iQOO 15T or the Vivo Y78 (t1)?
The Vivo iQOO 15T leads on performance (97/100 vs 42/100).
Should you choose the Vivo iQOO 15T over the Vivo Y78 (t1)?
The Vivo iQOO 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.