OnePlus 9 vs Samsung Galaxy A51
38.6Performance20
46.6Display30.8
39.3Camera34.7
55.9Battery29.4
65.3Features33.3
11 spec wins — OnePlus 95 spec wins — Samsung Galaxy A51
InnoReviews verdict
OnePlus 9 wins this phone face-off, 46.5 to 28.3, pulling ahead mainly in features (+32) and battery (+27). 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 OnePlus 9
- Stronger performance score: 39 vs 20
- Stronger display score: 47 vs 31
- Stronger camera score: 39 vs 35
- Stronger battery score: 56 vs 29
- Stronger features score: 65 vs 33
Reasons to pick the Samsung Galaxy A51
- 100% higher Front camera: 32 MP vs 16 MP
- 10% lower weight: 172 g vs 192 g
- Has 3.5mm jack — the other doesn't
- Lower launch price: $399 vs $729
Display
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| Screen size | 6.55 ″+1% | 6.5 ″ |
| Panel type | AMOLED | Super AMOLED |
| Resolution | 2400x1080 | 2400x1080 |
| Pixel density | 402 ppi | 405 ppi+1% |
| Refresh rate | 120 Hz+100% | 60 Hz |
| Peak brightness | 1,100 nits | — |
Performance
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| Chipset | Snapdragon 888 | Samsung Exynos 9611 |
| AnTuTu 10 | 1,040,324+384%Top 46% | 215,000Top 98% |
| Geekbench 6 (single) | 1,450+314%Top 48% | 350Top 99% |
| Geekbench 6 (multi) | 3,650+192%Top 53% | 1,250Top 100% |
| RAM (max) | 8 GB+33% | 6 GB |
| Storage options | 128GB / 256GB | 64GB / 128GB |
| Storage type | UFS 3.1 | UFS 2.0 |
Camera
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| Main camera | 48 MP | 48 MP |
| Main aperture | f/1.8 | f/2.0 |
| Ultra-wide | 50 MP+317% | 12 MP |
| Max video | 8K@30fps | 4K@30fps |
| Front camera | 16 MP | 32 MP+100% |
| OIS | No | No |
Battery
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| Capacity | 4,500 mAh+13% | 4,000 mAh |
| Wired charging | 65 W+333% | 15 W |
| Wireless charging | 15 W | — |
Design
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| Weight | 192 g | 172 g+10% |
| Thickness | 8.7 mm | 7.9 mm+9% |
| Frame material | Plastic | Plastic |
Connectivity
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| 5G | Yes | No |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | 5.2 | 5.0 |
| NFC | Yes | Yes |
| USB | USB-C 3.1 | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| OS at launch | Android 11 (OxygenOS 11) | Android 10 (One UI 2) |
| OS update pledge | 3 years | 3 years |
Audio
| Spec | OnePlus 9 | Samsung Galaxy A51 |
|---|---|---|
| Stereo speakers | Yes | No |
| 3.5mm jack | No | Yes |