The main difference between the Samsung A and S Series lies in their features. The Samsung Galaxy S Series is Samsung’s premium, top-of-the-range flagship series, while the Samsung Galaxy A Series is their mid-range series of smartphones, designed to be more affordable.
Samsung Galaxy A Series
Galaxy innovation made accessible. The Samsung Galaxy A Series combines affordability with innovative features and the latest smartphone technology.
Explore the Samsung Galaxy A Series
From the latest Samsung Galaxy A56 to the popular Samsung Galaxy A16 5G, we’ve got a phone to suit everyone. Check out our Samsung Galaxy A deals on Pay Monthly phone contracts with Three.
Samsung Galaxy A56 5G
Take epic photos and videos with the upgraded 50MP camera on Galaxy A56 5G. And enjoy up to 29 hours of use with a long-lasting 5,000 mAh battery.
Samsung Galaxy A16 4G
Enjoy stunning clarity and vibrant colours on Galaxy A16 4G’s 6.7in FHD+ Super AMOLED screen.
Samsung Galaxy A55 5G
Built with damage-resistant Gorilla® Glass Victus®, the A55 features a 3-camera layout that can take awesome, crystal clear photos even at night.
Samsung Galaxy A25 5G
The A25 5G makes shooting silky-smooth video easy, thanks to its optical image stabilisation and ultra-wide angle 8MP lens.
Samsung Galaxy A15 4G
The A15’s 6.5in Super AMOLED display creates a smooth and vivid viewing experience, with 800 nits of brightness and a low blue light display for eye comfort.
Samsung Galaxy A54 5G
With 3 great cameras, Galaxy A54 5G sets you up to capture everything in social-ready quality.
Compare Samsung Galaxy A models
Not sure which phone to choose? Compare specs and key features of the Samsung Galaxy A Series to decide which one suits you best.
Phones to view
Samsung Galaxy A56 5G
Display: 6.7-inch
Rear Camera: 50MP + 12MP + 5MP
Front Camera: 12MP
Storage: 256GB
Samsung Galaxy A16 5G
Display: 6.7-inch
Rear Camera: 50MP + 5MP + 2MP
Front Camera: 13MP
Storage: 128GB
Samsung Galaxy A55 5G
Display: 6.6-inch
Rear Camera: 50MP + 12MP + 5MP
Front Camera: 32MP
Storage: 128GB
Samsung Galaxy A25 5G
Display: 6.5-inch
Rear Camera: 50MP + 8MP + 2MP
Front Camera: 13MP
Storage: 128GB
Samsung Galaxy A15 4G
Display: 6.5-inch
Rear camera: 50MP + 5MP + 2MP
Front camera: 13MP
Storage: 128GB
Samsung Galaxy A54 5G
Display: 6.4-inch
Rear Camera: 50MP + 12MP + 5MP
Front Camera: 32MP
Storage: 128GB
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Samsung Galaxy A56 5G
Camera
The cameras on Samsung Galaxy A56 5G are now more advanced than before, absorbing more light for low noise, high-resolution Nightography. This means you get better shots every time, 24-7 The triple rear camera features a 50MP main camera, and you can capture crystal clear detail in your selfies with an impressive 12MP HDR front-facing camera.
Display
The 6.7in FHD+ Super AMOLED screen has slimmer bezels for an immersive experience and a smooth 120hz refresh rate. With a tough, metal frame and glass backplate, it’s as distinctive as it is robust.
Performance and storage
The Galaxy A56 5G’s Exynos 1580 Processor gives you the power to do more. Enjoy a smooth, quick performance with rich graphics as standard. And 256GB storage offers plenty of space for your photos, videos, and more.
Battery and charging
A 5000mAh battery with Super-Fast Charging 2.0 means you can keep on scrolling and creating content all day.
Samsung Galaxy A16 4G
Camera
Take high-quality shots with advanced camera features. Capture memories vividly with a 50MP main camera, 5MP ultra-wide camera, and 2MP macro camera. And you can take clear selfies with a 13MP front camera that makes each moment shine.
Display
The expansive 6.7-inch screen with minimised bezels brings every moment to life. You can dive into your favourite content with stunning clarity and vibrant colours thanks to Galaxy A16’s FHD+ Super AMOLED display.
Performance and storage
Whether you're gaming heavy or powering through work, the MediaTek Helio G99 Octa-core processor is capable of keeping everything running smoothly. It runs on 8GB of RAM and includes 128GB of storage.
Battery and charging
With a 5,000mAh battery, the Galaxy A16 4G keeps going strong on a single charge, offering up to 19 hours of continuous internet use and 18 hours of video playback. And if you need to power up, Super Fast Charging will have you back up and running quickly.
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Samsung series on Three
Frequently asked questions
Samsung has released over 60 Galaxy A Series phones since its launch. The phones that are currently available at Three include the A15, A16, A25, A54, and A55. The numbering of the A series can be a little confusing. To keep things simple, the A15 and A16 are the simpler, entry-level models, the A54 and A55 offer higher specs, and the Samsung Galaxy A25 sits somewhere in the middle.
The first phone in the Galaxy A Series was the Samsung Galaxy Alpha, released in September 2014. The most recent model in the Galaxy A Series is the Samsung Galaxy A16, released in February 2025.
The Samsung Galaxy A Series is perfect for those who want a smartphone with solid specs for everyday use, and at a lower price. Those who are more interested in getting a phone with the best available tech, and use their phone for more demanding tasks, the high spec Samsung Galaxy S Series will be more suitable. The most recent S Series is the Samsung Galaxy S25 Series.
Out of the current A Series phones available, the Samsung Galaxy A55 and the Samsung Galaxy A54 include the most impressive camera setups. They include a triple camera system on the rear, with a 50MP main camera, 12MP ultra-wide, and 50MP macro camera, plus a 32MP front-facing camera for detailed, beautiful selfies.
The Samsung Galaxy A15 and A16 are the most affordable in the A Series currently on offer at Three. But you can of course find great offers on a range of different phones, by visiting our Samsung brand page or our latest offers page.
You can get the following phones from Three in a range of colours:
Samsung Galaxy A15 is available in Blue and Dark Blue
Samsung Galaxy A16 is available in Blue, Black, and Light Grey
Samsung Galaxy A25 is available in Black and Blue
Samsung Galaxy A54 is available in Black, White, and Violet
Samsung Galaxy A55 is available in Ice Blue, Lilac, and Navy.
The Samsung Galaxy A Series doesn’t support wireless charging.
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