Samsung Galaxy A51 vs Vivo S2
20Performance28.9
30.8Display65.5
34.7Camera34.1
29.4Battery70.9
33.3Features57.3
4 spec wins — Samsung Galaxy A519 spec wins — Vivo S2
InnoReviews verdict
Vivo S2 wins this phone face-off, 48.5 to 28.3, pulling ahead mainly in battery (+42) and display (+35). Samsung Galaxy A51 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 A51
- 13% lower weight: 172 g vs 197 g
- Has NFC — the other doesn't
- Has 3.5mm jack — the other doesn't
Reasons to pick the Vivo S2
- Stronger performance score: 29 vs 20
- Stronger display score: 66 vs 31
- Stronger battery score: 71 vs 29
- Stronger features score: 57 vs 33
- 193% higher Wired charging: 44 W vs 15 W
Display
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| Screen size | 6.5 ″ | 6.83 ″+5% |
| Panel type | Super AMOLED | 3D Curved AMOLED |
| Resolution | 2400x1080 | 1260x2800 |
| Pixel density | 405 ppi | 449 ppi+11% |
| Refresh rate | 60 Hz | 120 Hz+100% |
| Peak brightness | — | 3,000 nits |
| Screen-to-body | — | 91.4 % |
Performance
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| Chipset | Samsung Exynos 9611 | MediaTek Dimensity 7360-Turbo |
| AnTuTu | 215,000 | — |
| Geekbench 6 (single) | 350Bottom 1% | — |
| Geekbench 6 (multi) | 1,250Bottom 1% | — |
| RAM (max) | 6 GB | 8 GB+33% |
| Storage options | 64GB / 128GB | 128/256GB |
| Storage type | UFS 2.0 | UFS 3.1 |
Camera
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| Main camera | 48 MP | 50 MP+4% |
| Main aperture | f/2.0 | f/1.8 |
| Ultra-wide | 12 MP | — |
| Max video | 4K@30fps | — |
| Front camera | 32 MP | 32 MP |
| OIS | No | No |
Battery
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| Capacity | 4,000 mAh | 7,050 mAh+76% |
| Wired charging | 15 W | 44 W+193% |
Design
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| Weight | 172 g+13% | 197 g |
| Thickness | 7.9 mm+1% | 8 mm |
| IP rating | — | IP68/IP69 |
| Frame material | Plastic | Plastic |
Connectivity
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.0 | 5.4 |
| NFC | Yes | No |
| USB | USB-C 2.0 | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| OS at launch | Android 10 (One UI 2) | Android 16 (OriginOS 6) |
| OS update pledge | 3 years | 3 years |
Audio
| Spec | Samsung Galaxy A51 | Vivo S2 |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | Yes | No |