Vivo Y31d vs Xiaomi 15 Ultra
The Vivo Y31d (2026) runs on the Qualcomm Snapdragon 6s 4G Gen 2, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $185 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 41/100 (a 44-point difference). Key differences: the Vivo Y31d has the bigger battery (7200 mAh vs 6000); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 522,680); the Xiaomi 15 Ultra has NFC for contactless payments, the Vivo Y31d doesn't; the Vivo Y31d is thinner (8.4mm vs 9.4mm).
Vivo Y31d
Xiaomi 15 Ultra
- Bigger battery: 7200 vs 6000 mAh
- Lighter: 219g vs 225g
- Cheaper at launch: $185 vs $999
- Better portability (43/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 522680
- Better Geekbench Single: 3050 vs 489
- Better Geekbench Multi: 10200 vs 1532
- Faster charging: 90W vs 44W
- Higher performance (92/100 vs 36/100)
- Better camera (87/100 vs 30/100)
- Longer battery life (80/100 vs 60/100)
- Better display (90/100 vs 55/100)
Comparing the Vivo Y31d vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 44 points higher (85/100 vs 41/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 36/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 30/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 60/100). Value score: Vivo Y31d — 48/100, Xiaomi 15 Ultra — 82/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Vivo Y31d (92/100 vs 36/100). In the "display" category, the Xiaomi 15 Ultra significantly outperforms the Vivo Y31d (90/100 vs 55/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Vivo Y31d (87/100 vs 30/100). In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Vivo Y31d (80/100 vs 60/100). In the "portability" category, the Vivo Y31d is a bit better (43/100 vs 29/100).
| Specification | Vivo Y31d | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6s 4G Gen 2 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 522680 | 3030376 | |
| Geekbench Single | 489 | 3050 | |
| Geekbench Multi | 1532 | 10200 | |
| Display | 6.8" IPS LCD | 6.7" LTPO AMOLED | |
| Resolution | 720x1570 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7200 mAh | 6000 mAh | |
| Charging | 44W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 6GB / 8GB | 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1250 nits | 3200 nits | |
| NFC | no | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 166.6×78.4×8.4 mm | 161.3×75.3×9.4 mm | |
| Weight | 219 g | 225 g | |
| Launch price | $185 | $999 |
Vivo Y31d
- Main: 50MP f/f/2.0
- Front: 8MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y31d
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Vivo Y31d
- 7200 mAh
- Wired: 44W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Vivo Y31d and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Vivo Y31d by 82.8% in our overall performance rating.
Launch price difference: $814. Vivo Y31d was $814 cheaper at launch.
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Vivo Y31d (92/100 vs 36/100).
display
In the "display" category, the Xiaomi 15 Ultra significantly outperforms the Vivo Y31d (90/100 vs 55/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Vivo Y31d (87/100 vs 30/100).
battery
In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Vivo Y31d (80/100 vs 60/100).
portability
In the "portability" category, the Vivo Y31d is a bit better (43/100 vs 29/100).
Which is better: the Vivo Y31d or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Vivo Y31d by 44 points (85/100 vs 41/100).
What is the rating of the Vivo Y31d and the Xiaomi 15 Ultra?
The Vivo Y31d has a MobileRank rating of 41/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Vivo Y31d or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 30/100).
Which is more powerful: the Vivo Y31d or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 36/100).
Should you choose the Vivo Y31d over the Xiaomi 15 Ultra?
The Vivo Y31d is a better fit for everyday use. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.