Vivo iQOO 15 vs Vivo Y31t
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y31t (2026) runs on the Qualcomm Snapdragon 4 Gen 2. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 45/100 (a 41-point difference). Key differences: the Vivo Y31t has the bigger battery (7200 mAh vs 7000); the Vivo iQOO 15 is faster in AnTuTu (3,758,268 vs 568,395); the Vivo iQOO 15 has NFC for contactless payments, the Vivo Y31t doesn't.
Profile comparison
Category scores
Vivo iQOO 15
Vivo Y31t
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 568395
- Better Geekbench Single: 3013 vs 915
- Better Geekbench Multi: 9287 vs 2115
- Faster charging: 100W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 215g vs 219g
- Higher performance (94/100 vs 46/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (85/100 vs 60/100)
- Better display (99/100 vs 55/100)
- Better portability (48/100 vs 43/100)
What makes Vivo Y31t better?
- Bigger battery: 7200 vs 7000 mAh
- Overall rating 45/100
Comparison verdict
Comparing the Vivo iQOO 15 vs the Vivo Y31t, the Vivo iQOO 15 scores 41 points higher (86/100 vs 45/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 46/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 60/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31t (94/100 vs 46/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31t (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31t (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo Y31t (85/100 vs 60/100). In the "portability" category, the Vivo iQOO 15 is a bit better (48/100 vs 43/100).
Specs comparison
| Specification | Vivo iQOO 15 | Vivo Y31t | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 4 Gen 2 | |
| AnTuTu | 3758268 | 568395 | |
| Geekbench Single | 3013 | 915 | |
| Geekbench Multi | 9287 | 2115 | |
| Display | 6.8" LTPO AMOLED | 6.8" IPS LCD | |
| Resolution | 1440x3168 | 720x1608 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 7200 mAh | |
| Charging | 100W | 44W | |
| Wireless charging | 40W | 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 | 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 6000 nits | 1200 nits | |
| NFC | yes | no | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 163.7×76.8×8.1 mm | 166.6×78.4×8.4 mm | |
| Weight | 215 g | 219 g | |
| Launch price | $599 | — |
Camera comparison
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y31t
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y31t
- 6.8" IPS LCD
- Resolution: 720x1608
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Vivo Y31t
- 7200 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 and Vivo Y31t, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo Y31t by 561.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Y31t
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31t (94/100 vs 46/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31t (99/100 vs 55/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31t (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo Y31t (85/100 vs 60/100).
portability
In the "portability" category, the Vivo iQOO 15 is a bit better (48/100 vs 43/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 or the Vivo Y31t?
The Vivo iQOO 15 significantly outperforms the Vivo Y31t by 41 points (86/100 vs 45/100).
What is the rating of the Vivo iQOO 15 and the Vivo Y31t?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Vivo Y31t — 45/100.
Which has the better camera: the Vivo iQOO 15 or the Vivo Y31t?
The Vivo iQOO 15 leads on camera score (78/100 vs 30/100).
Which is more powerful: the Vivo iQOO 15 or the Vivo Y31t?
The Vivo iQOO 15 leads on performance (94/100 vs 46/100).
Should you choose the Vivo iQOO 15 over the Vivo Y31t?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.