Vivo iQOO 15 Ultra vs Vivo Y31s 5G
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo Y31s 5G (2026) runs on the Qualcomm Snapdragon 4 Gen 2; launch prices were $799 and $200. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 47/100 (a 42-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 6500); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 560,863); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Vivo Y31s 5G doesn't; the Vivo Y31s 5G is noticeably lighter (207g vs 227g).
Vivo iQOO 15 Ultra
Vivo Y31s 5G
- Higher AnTuTu: 4602290 vs 560863
- Better Geekbench Single: 3640 vs 923
- Better Geekbench Multi: 11033 vs 2249
- Bigger battery: 7400 vs 6500 mAh
- Faster charging: 120W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 47/100)
- Better camera (78/100 vs 37/100)
- Longer battery life (92/100 vs 58/100)
- Better display (99/100 vs 55/100)
- Lighter: 207g vs 227g
- Cheaper at launch: $200 vs $799
- Better portability (50/100 vs 35/100)
Comparing the Vivo iQOO 15 Ultra vs the Vivo Y31s 5G, the Vivo iQOO 15 Ultra scores 42 points higher (89/100 vs 47/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 47/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 37/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 58/100). Value score: Vivo iQOO 15 Ultra — 90/100, Vivo Y31s 5G — 56/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (99/100 vs 47/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (78/100 vs 37/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (92/100 vs 58/100). In the "portability" category, the Vivo Y31s 5G notably outperforms the Vivo iQOO 15 Ultra (50/100 vs 35/100).
| Specification | Vivo iQOO 15 Ultra | Vivo Y31s 5G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 4 Gen 2 | |
| AnTuTu | 4602290 | 560863 | |
| Geekbench Single | 3640 | 923 | |
| Geekbench Multi | 11033 | 2249 | |
| Display | 6.8" LTPO AMOLED | 6.7" IPS LCD | |
| Resolution | 1440x3168 | 1600x720 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 6500 mAh | |
| Charging | 120W | 44W | |
| Wireless charging | 50W | 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 / 24GB | 8GB | |
| Storage | 256GB / 512GB / 1TB | 256GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 164.2×75.4×8.4 mm | |
| Weight | 227 g | 207 g | |
| Launch price | $799 | $200 |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y31s 5G
- Main: 50MP f/f/1.8
- Front: 32MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y31s 5G
- 6.7" IPS LCD
- Resolution: 1600x720
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo Y31s 5G
- 6500 mAh
- Wired: 44W
- No wireless charging
We compared Vivo iQOO 15 Ultra and Vivo Y31s 5G, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo Y31s 5G by 720.6% in our overall performance rating.
Launch price difference: $599. Vivo Y31s 5G was $599 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (99/100 vs 47/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (99/100 vs 55/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (78/100 vs 37/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G (92/100 vs 58/100).
portability
In the "portability" category, the Vivo Y31s 5G notably outperforms the Vivo iQOO 15 Ultra (50/100 vs 35/100).
Which is better: the Vivo iQOO 15 Ultra or the Vivo Y31s 5G?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31s 5G by 42 points (89/100 vs 47/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo Y31s 5G?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo Y31s 5G — 47/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo Y31s 5G?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 37/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo Y31s 5G?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 47/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo Y31s 5G?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo Y31s 5G is a better fit for everyday use.