Samsung Galaxy A51 vs Samsung Galaxy S20 Ultra
20Performance29.1
30.8Display54
34.7Camera65.9
29.4Battery55.1
33.3Features73.3
3 spec wins — Samsung Galaxy A5115 spec wins — Samsung Galaxy S20 Ultra
InnoReviews verdict
Samsung Galaxy S20 Ultra wins this phone face-off, 51.1 to 28.3, pulling ahead mainly in features (+40) and camera (+31). 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
- 23% lower weight: 172 g vs 222 g
- 10% lower thickness: 7.9 mm vs 8.8 mm
- Has 3.5mm jack — the other doesn't
- Lower launch price: $399 vs $1,399
Reasons to pick the Samsung Galaxy S20 Ultra
- Stronger performance score: 29 vs 20
- Stronger display score: 54 vs 31
- Stronger camera score: 66 vs 35
- Stronger battery score: 55 vs 29
- Stronger features score: 73 vs 33
Display
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| Screen size | 6.5 ″ | 6.9 ″+6% |
| Panel type | Super AMOLED | AMOLED |
| Resolution | 2400x1080 | 3200x1440 |
| Pixel density | 405 ppi | 511 ppi+26% |
| Refresh rate | 60 Hz | 120 Hz+100% |
| Peak brightness | — | 1,200 nits |
Performance
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| Chipset | Samsung Exynos 9611 | Samsung Exynos 990 |
| AnTuTu 10 | 215,000Top 98% | 500,000+133%Top 77% |
| Geekbench 6 (single) | 350Top 99% | 900+157%Top 78% |
| Geekbench 6 (multi) | 1,250Top 100% | 2,650+112%Top 72% |
| RAM (max) | 6 GB | 12 GB+100% |
| Storage options | 64GB / 128GB | 128GB / 256GB / 512GB |
| Storage type | UFS 2.0 | UFS 3.0 |
Camera
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| Main camera | 48 MP | 108 MP+125% |
| Main aperture | f/2.0 | f/1.8 |
| Ultra-wide | 12 MP | 12 MP |
| Telephoto | — | 48 MP |
| Optical zoom | — | 4 x |
| Max video | 4K@30fps | 8K@24fps |
| Front camera | 32 MP | 40 MP+25% |
| OIS | No | Yes |
Battery
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| Capacity | 4,000 mAh | 5,000 mAh+25% |
| Wired charging | 15 W | 45 W+200% |
| Wireless charging | — | 15 W |
Design
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| Weight | 172 g+23% | 222 g |
| Thickness | 7.9 mm+10% | 8.8 mm |
| IP rating | — | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 |
| Bluetooth | 5.0 | 5.0 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| OS at launch | Android 10 (One UI 2) | Android 10 (One UI 2) |
| OS update pledge | 3 years | 3 years |
Audio
| Spec | Samsung Galaxy A51 | Samsung Galaxy S20 Ultra |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | Yes | No |
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