Vivo iQOO 15 Ultra vs Vivo Y31d
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo Y31d (2026) runs on the Qualcomm Snapdragon 6s 4G Gen 2; launch prices were $799 and $185. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 41/100 (a 48-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 7200); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 505,682); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Vivo Y31d doesn't.
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Vivo Y31d
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 505682
- Better Geekbench Single: 3639 vs 484
- Better Geekbench Multi: 11047 vs 1558
- Bigger battery: 7400 vs 7200 mAh
- Faster charging: 120W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 36/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (92/100 vs 60/100)
- Better display (99/100 vs 55/100)
What makes Vivo Y31d better?
- Lighter: 219g vs 227g
- Cheaper at launch: $185 vs $799
- Better portability (43/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Vivo Y31d, the Vivo iQOO 15 Ultra scores 48 points higher (89/100 vs 41/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 36/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 60/100). Value score: Vivo iQOO 15 Ultra — 92/100, Vivo Y31d — 46/100; 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 Ultra significantly outperforms the Vivo Y31d (99/100 vs 36/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (92/100 vs 60/100). In the "portability" category, the Vivo Y31d is a bit better (43/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Vivo Y31d | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 6s 4G Gen 2 | |
| AnTuTu | 4602290 | 505682 | |
| Geekbench Single | 3639 | 484 | |
| Geekbench Multi | 11047 | 1558 | |
| Display | 6.8" LTPO AMOLED | 6.8" IPS LCD | |
| Resolution | 1440x3168 | 720x1570 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 7200 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 | 8 MP | |
| RAM | 12GB / 16GB / 24GB | 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 8000 nits | 1250 nits | |
| NFC | yes | no | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 163.7×76.8×8.7 mm | 166.6×78.4×8.4 mm | |
| Weight | 227 g | 219 g | |
| Launch price | $799 | $185 |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y31d
- Main: 50MP f/2.0
- Front: 8MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y31d
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo Y31d
- 7200 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 Ultra and Vivo Y31d, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo Y31d by 810.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $614. Vivo Y31d was $614 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (99/100 vs 36/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (99/100 vs 55/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d (92/100 vs 60/100).
portability
In the "portability" category, the Vivo Y31d is a bit better (43/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Vivo Y31d?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo Y31d by 48 points (89/100 vs 41/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo Y31d?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo Y31d — 41/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo Y31d?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 30/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo Y31d?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 36/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo Y31d?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.