Samsung Galaxy A55 vs Samsung Galaxy S25 Ultra
Our Verdict: The Galaxy A55 and Galaxy S25 Ultra are from the same brand, with the A55 a cheaper model than the S25 Ultra. The S25 Ultra has a far higher-resolution main camera, 200MP against the A55's 50MP, and the S25 Ultra has the stronger screen, bigger at 6.8" against 6.6" and sharper at 505 PPI. The S25 Ultra goes up to 1TB of storage, where the A55 tops out at 256GB. Get the S25 Ultra if those extras are worth it to you; otherwise the A55 covers the basics for less.
10 reviews 4.4
12 reviews
Prices updated 26 July 2026
Samsung Galaxy A55
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Samsung Galaxy S25 Ultra
|
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|---|---|---|
| Expert Rating | 4.0 10 reviews |
4.4 12 reviews |
| Screen | 6.6" | 6.8" |
| Display | Super AMOLED | Dynamic LTPO AMOLED 2X |
| Resolution | 1080 x 2340 | 1440 x 3120 |
| Pixels Per Inch | 390 | 505 |
| Rear Camera | 50 Megapixels | 200 Megapixels |
| Front Camera | 32 Megapixels | 12 Megapixels |
| Chipset | Exynos 1480 | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) |
| Battery | 5,000 mAh | 5,000 mAh |
| Storage | 128GB, 256GB | 256GB, 512GB, 1TB |
| OS | Android 14 | Android 15 |
| SIM Type | nano-SIM and e-SIM | nano-SIM and e-SIM |
| Connectivity | Up to 5G | Up to 5G |
| Wi-Fi | 802.11 a/b/g/n/ac/6 | 802.11 a/b/g/n/ac/6e/7 |
| Bluetooth | 5.3 with A2DP, LE | 5.3, A2DP, LE |
| Dimensions | 161.1 x 77.4 x 8.2 mm | 162.8 x 77.6 x 8.2 mm |
| Weight | 213 grams | 219 grams |
| Water Resistance | IP67 dust/water resistant (up to 1m for 30 min) | IP68 - Dust and water resistant over 1.5 meter and 30 minutes |
| Contracts | - |
£33.79/mo
£29.00 upfront |
| SIM-free | - | £569.99 |
| Prices updated 26 July 2026 | ||
| Deals | Deals | |
Cheapest Deals
Samsung Galaxy S25 Ultra
£33.79 per month, £29 upfront.
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Frequently Asked Questions
Which has the better screen, the Samsung Galaxy A55 or Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra has the bigger screen at 6.8" compared to the Samsung Galaxy A55's 6.6", the Samsung Galaxy S25 Ultra has the sharper display at 505 pixels per inch versus 390, and the Samsung Galaxy A55 uses a Super AMOLED panel while the Samsung Galaxy S25 Ultra has a Dynamic LTPO AMOLED 2X.
Which has the better camera, the Samsung Galaxy A55 or Samsung Galaxy S25 Ultra?
The Samsung Galaxy A55 features a 50 Megapixels rear camera, while the Samsung Galaxy S25 Ultra has a 200 Megapixels rear camera. Both devices also have front-facing cameras for selfies and video calls.
What storage options are available for the Samsung Galaxy A55 and Samsung Galaxy S25 Ultra?
The Samsung Galaxy A55 is available in 128GB, 256GB, while the Samsung Galaxy S25 Ultra comes in 256GB, 512GB, 1TB.
What processors do the Samsung Galaxy A55 and Samsung Galaxy S25 Ultra use?
The Samsung Galaxy A55 is powered by the Exynos 1480, while the Samsung Galaxy S25 Ultra uses the Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm).
Which is easier to carry and hold, the Samsung Galaxy A55 or Samsung Galaxy S25 Ultra?
The Samsung Galaxy A55 is the more portable of the two: it's 6g lighter at 213 grams, it's also the more compact phone at 161.1 x 77.4 x 8.2 mm.
Which is more water resistant, the Samsung Galaxy A55 or Samsung Galaxy S25 Ultra?
The Samsung Galaxy A55 is rated IP67 dust/water resistant (up to 1m for 30 min), while the Samsung Galaxy S25 Ultra is rated IP68 - Dust and water resistant over 1.5 meter and 30 minutes.
What operating system do the Samsung Galaxy A55 and Samsung Galaxy S25 Ultra run?
The Samsung Galaxy A55 runs Android 14 and the Samsung Galaxy S25 Ultra runs Android 15. This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.