Vivo iQOO 15 vs Vivo Y31s 5G
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y31s 5G (2026) runs on the Qualcomm Snapdragon 4 Gen 2; launch prices were $599 and $200. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 47/100 (a 39-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 6500); 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 Y31s 5G doesn't.
Profile comparison
Category scores
Vivo iQOO 15
Vivo Y31s 5G
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 568395
- Better Geekbench Single: 3013 vs 915
- Better Geekbench Multi: 9287 vs 2115
- Bigger battery: 7000 vs 6500 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (94/100 vs 46/100)
- Better camera (78/100 vs 37/100)
- Longer battery life (85/100 vs 58/100)
- Better display (99/100 vs 55/100)
What makes Vivo Y31s 5G better?
- Lighter: 207g vs 215g
- Cheaper at launch: $200 vs $599
- Better portability (50/100 vs 48/100)
Comparison verdict
Comparing the Vivo iQOO 15 vs the Vivo Y31s 5G, the Vivo iQOO 15 scores 39 points higher (86/100 vs 47/100). 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 37/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 58/100). Value score: Vivo iQOO 15 — 86/100, Vivo Y31s 5G — 54/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G (94/100 vs 46/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G (78/100 vs 37/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo Y31s 5G (85/100 vs 58/100). In the "portability" category, the Vivo Y31s 5G and the Vivo iQOO 15 are nearly equal (50/100 vs 48/100).
Specs comparison
| Specification | Vivo iQOO 15 | Vivo Y31s 5G | |
|---|---|---|---|
| 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 | 6.7" IPS LCD | |
| Resolution | 1440x3168 | 1600x720 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 6500 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 | 32 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB / 1TB | 256GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 6000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.1 mm | 164.2×75.4×8.4 mm | |
| Weight | 215 g | 207 g | |
| Launch price | $599 | $200 |
Camera comparison
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y31s 5G
- Main: 50MP f/1.8
- Front: 32MP
Display comparison
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y31s 5G
- 6.7" IPS LCD
- Resolution: 1600x720
- 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 Y31s 5G
- 6500 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 and Vivo Y31s 5G, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo Y31s 5G by 561.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $399. Vivo Y31s 5G was $399 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G (94/100 vs 46/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G (99/100 vs 55/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G (78/100 vs 37/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo Y31s 5G (85/100 vs 58/100).
portability
In the "portability" category, the Vivo Y31s 5G and the Vivo iQOO 15 are nearly equal (50/100 vs 48/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 or the Vivo Y31s 5G?
The Vivo iQOO 15 significantly outperforms the Vivo Y31s 5G by 39 points (86/100 vs 47/100).
What is the rating of the Vivo iQOO 15 and the Vivo Y31s 5G?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Vivo Y31s 5G — 47/100.
Which has the better camera: the Vivo iQOO 15 or the Vivo Y31s 5G?
The Vivo iQOO 15 leads on camera score (78/100 vs 37/100).
Which is more powerful: the Vivo iQOO 15 or the Vivo Y31s 5G?
The Vivo iQOO 15 leads on performance (94/100 vs 46/100).
Should you choose the Vivo iQOO 15 over the Vivo Y31s 5G?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.