Samsung Galaxy S21 Ultra vs vivo Y31 5G
37.2Performance20
56.3Display39.6
72Camera29
46.4Battery66.2
78.7Features73.3
9 spec wins — Samsung Galaxy S21 Ultra4 spec wins — vivo Y31 5G
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 40.3, pulling ahead mainly in camera (+43) and performance (+17). vivo Y31 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger performance score: 37 vs 20
- Stronger display score: 56 vs 40
- Stronger camera score: 72 vs 29
- Stronger features score: 79 vs 73
- 400% higher Front camera: 40 MP vs 8 MP
Reasons to pick the vivo Y31 5G
- Stronger battery score: 66 vs 46
- 76% higher Wired charging: 44 W vs 25 W
- 30% higher capacity: 6,500 mAh vs 5,000 mAh
Display
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| Screen size | 6.8 ″+2% | 6.68 ″ |
| Panel type | LTPO AMOLED | IPS LCD |
| Resolution | 3200x1440 | 720x1608 |
| Pixel density | 515 ppi+95% | 264 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,500 nits+50% | 1,000 nits |
Performance
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 4 Gen 2 |
| AnTuTu | 783,817Bottom 22% | — |
| AnTuTu 11 (CPU) | 263,424Bottom 17% | — |
| AnTuTu 11 (GPU) | 126,989Bottom 33% | — |
| AnTuTu 11 (Memory) | 165,563Bottom 35% | — |
| AnTuTu 11 (UX) | 227,841Bottom 20% | — |
| Geekbench 6 (single) | 1,430Top 46% | — |
| Geekbench 6 (multi) | 3,550Bottom 50% | — |
| RAM (max) | 12 GB+100% | 6 GB |
| Storage options | 128GB / 256GB / 512GB | 128GB |
| Storage type | UFS 3.1 | eMMC 5.1 |
Camera
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| Main camera | 108 MP+116% | 50 MP |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 12 MP | — |
| Telephoto | 10 MP | — |
| Optical zoom | 10 x | — |
| Max video | 8K@24fps | 1080p@30fps |
| Front camera | 40 MP+400% | 8 MP |
| OIS | Yes | No |
Battery
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| Capacity | 5,000 mAh | 6,500 mAh+30% |
| Wired charging | 25 W | 44 W+76% |
| Wireless charging | 15 W | — |
Design
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| Weight | 228 g | 209 g+8% |
| Thickness | 8.9 mm | 8.4 mm+6% |
| IP rating | IP68 | IP68/IP69 |
| Frame material | Aluminum | — |
Connectivity
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 5 |
| Bluetooth | 5.2 | 4.2 |
| NFC | Yes | No |
| USB | USB-C 3.2 | USB-C 2.0 |
| eSIM | Yes | No |
Software
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 15 (Funtouch OS 15) |
| OS update pledge | 4 years | — |
Audio
| Spec | Samsung Galaxy S21 Ultra | vivo Y31 5G |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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