A Samsung Galaxy smartphone is an Android phone from Samsung’s Galaxy family. “Galaxy” is the brand, not a single model or a fixed set of specifications. The letter that follows the name, such as S, A, or Z, tells you which range the phone belongs to, and that range is what mostly determines its design, price tier, and feature level.
What the Galaxy name covers
Samsung uses Galaxy as the umbrella name for its smartphones, and it describes them as Android smartphones. The name spans several phone ranges at different price points, so two phones with “Galaxy” in their names can differ a great deal in size, display, camera, processor, and cost. Treat the brand as a family and the letter as the category.
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What the series letters signal
Samsung’s UK buying guide, Samsung Phone Ranges Explained: Z, S & A, states: “Samsung Galaxy smartphones use letters to distinguish between the different phone ranges.” The same guide says the letters indicate categories and that models within a range can vary in specifications, memory, and connectivity. As of the guide’s October 2026 retrieval, it describes three main ranges:
Galaxy Z: foldable phones
Galaxy Z phones fold. Their defining question is form factor: a compact flip-style design versus a larger foldable that opens into a tablet-sized screen. Because the hinge and folding display change the shape of the phone, Z models need to be compared on how they open and close as well as on the usual specifications.
#1 Best Overall
- PRIVACY DISPLAY: Automatically hide your screen from those beside you. The built-in privacy display can be preset¹ to turn on when receiving notifications, typing passwords, or using specific apps
- TYPE IT IN. TRANSFORM IT FAST: Enhance any shot in seconds on your smartphone by using Photo Assist² with Galaxy AI.³ Add objects, restore details, or apply new styles by simply typing or tapping
- NIGHTS, CAPTURED CLEARLY: From gigs to city lights, record and capture moments after dark with clarity using Nightography so your photos and videos stay crisp and clear on your Samsung Galaxy
- MAKE IT. EDIT IT. SHARE IT: Turn everyday moments into something personal with creative tools built right into your mobile phone, whether it’s a special contact photo, custom wallpaper, an invitation or more⁴
- HELP THAT KEEPS UP: Stay in the moment while Now Nudge with Galaxy AI helps you respond faster and stay organized with smart suggestions⁵ that appear exactly when you need them on your phone
Galaxy S: premium flagships
Galaxy S is the premium flagship line. Samsung positions it for buyers who want the highest feature tier, and the main comparison points are performance, camera system, and display quality. Flagship status is a positioning within the range, so check each model’s specifications rather than assuming the newest S phone is the best fit for every use.
Galaxy A: everyday phones at a more accessible price
Galaxy A is Samsung’s everyday range. The UK guide describes it as offering everyday features at a more accessible price. Compare A models on what matters for daily use, such as battery life, screen, camera quality in ordinary light, and price, rather than on flagship-level performance.
Rank #2
- YOUR CONTENT, SUPER SMOOTH: The ultra-clear 6.7" FHD+ Super AMOLED display of Galaxy A17 5G helps bring your content to life, whether you're scrolling through recipes or video chatting with loved ones.¹
- LIVE FAST. CHARGE FASTER: Focus more on the moment and less on your battery percentage with Galaxy A17 5G. Super Fast Charging powers up your battery so you can get back to life sooner.²
- MEMORIES MADE PICTURE PERFECT: Capture every angle in stunning clarity, from wide family photos to close-ups of friends, with the triple-lens camera on Galaxy A17 5G.
- NEED MORE STORAGE? WE HAVE YOU COVERED: With an improved 2TB of expandable storage, Galaxy A17 5G makes it easy to keep cherished photos, videos and important files readily accessible whenever you need them.³
- BUILT TO LAST: With an improved IP54 rating, Galaxy A17 5G is even more durable than before.⁴ It’s built to resist splashes and dust and comes with a stronger yet slimmer Gorilla Glass Victus front and Glass Fiber Reinforced Polymer back.
Galaxy M: a range listed in some markets
Samsung’s UK guide treats Z, S, and A as the three main ranges and does not list M among them. Samsung’s Brazil guide, Conheça as linhas de celulares Samsung, includes M alongside Z, S, and A. The lineup you see therefore depends on the country. If you are shopping for an M model, confirm that it is sold locally and check its exact specifications.
| Range | Samsung’s description | Where it is listed | What to compare |
|---|---|---|---|
| Galaxy Z | Foldable smartphones | UK guide, main range | Form factor (compact flip vs. larger foldable), hinge and folded size, price |
| Galaxy S | Premium flagship smartphones | UK guide, main range | Performance, camera system, display, price |
| Galaxy A | Everyday features at a more accessible price | UK guide, main range | Battery, display, everyday camera performance, price |
| Galaxy M | Not described in the UK guide | Listed in the Brazil guide; not stated for other markets | Local availability and exact model specifications |
Samsung’s guides say the right range depends on how you use the phone. Their positioning is broad marketing guidance, not an independent benchmark, so use it to narrow your search and then compare specific models.
Rank #3
- TYPE IT IN. TRANSFORM IT FAST: Enhance any shot in seconds on your smartphone by using Photo Assist¹ with Galaxy AI.² Add objects, restore details, or apply new styles by simply typing or tapping
- MAKE IT. EDIT IT. SHARE IT: Turn everyday moments into something personal with creative tools built right into your mobile whether it’s a special contact photo, custom wallpaper, an invitation or more³
- FAST. POWERFUL. AI-READY: Power through your day with AI-accelerated performance from our fastest, smoothest and most powerful Galaxy processor yet, built to keep up with everything you do
- IMMENSELY IMMERSIVE: No matter where you are or what you’re watching, your favorite videos and more come to life with the vibrant display on Galaxy S26
- FIT EVERYONE IN THE SHOT: Group selfies are easier on your Samsung phone with a wider front camera⁴ that captures more of the scene, so no one gets left out of the moment
Where the Galaxy S line started
The Galaxy S series is the oldest of the current ranges. Samsung Global Newsroom, in a company history article on its mobile products, says: “The first Galaxy S device was announced in 2010 under the tagline ‘Super Smart.’” That date marks the start of the S series. It does not mean the entire Galaxy brand, including Z, A, and M, began in 2010.
How to choose a range
- Start with your priorities. If you need a foldable screen, look at Galaxy Z. If you want top performance and camera features, look at Galaxy S. If you want solid everyday performance for less money, look at Galaxy A.
- Confirm the range is sold in your country. Check Samsung’s official site for your region, because the Brazil guide includes M while the UK guide does not list it as a main range.
- Compare exact models. Within each range, check the display, processor, cameras, memory, battery, connectivity, and price of the specific model. Specifications can change between models in the same range.
- Match accessories to the exact model. Samsung’s UK guide points readers to phone cases for Galaxy models. Buy a case made for your precise model. Foldables in particular need a design-specific case because the folding shape differs from standard phones.
Common misunderstandings
- Not every Galaxy phone is foldable. Only the Z range is foldable.
- Not every Galaxy phone is a flagship. Flagship status applies to the S range.
- The letters are not a guarantee of identical features. Models within one range can differ.
- Regional catalogs differ. A range or model that appears in one country’s guide may not be sold in yours.
In short, a Samsung Galaxy smartphone is any Samsung Android phone in the Galaxy family. The letter tells you the range: Z for foldables, S for premium flagships, A for everyday phones at a more accessible price, and M where Samsung lists it locally. Always confirm the exact model and its availability before buying.
Quick Recap
Best Value
- Please note, this device does not support E-SIM; This 4G model is compatible with all GSM networks worldwide outside of the U.S. In the US, ONLY compatible with T-Mobile and their MVNO's (Metro and Standup). It will NOT work with other CDMA carriers, and it is also not compatible with their MVNO (Visible, Xfinity Mobile, US Mobile, Cricket Wireless, etc).
- Compatibility with certain third-party devices and accessibility accessories, including some hearing aids, may vary depending on manufacturer support, Bluetooth protocols, software compatibility, and regional firmware limitations. For additional hearing aid compatibility information, please refer to Samsung’s official support documentation.
- Camera: 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 2 MP, f/2.4, (macro). Battery: 5000 mAh, non-removable | A power adapter is NOT included.
Rank #4
- YOUR CONTENT, SUPER SMOOTH: The ultra-clear 6.7" FHD+ Super AMOLED display of Galaxy A17 5G helps bring your content to life, whether you're scrolling through recipes or video chatting with loved ones.¹
- LIVE FAST. CHARGE FASTER: Focus more on the moment and less on your battery percentage with Galaxy A17 5G. Super Fast Charging powers up your battery so you can get back to life sooner.²
- MEMORIES MADE PICTURE PERFECT: Capture every angle in stunning clarity, from wide family photos to close-ups of friends, with the triple-lens camera on Galaxy A17 5G.
- NEED MORE STORAGE? WE HAVE YOU COVERED: With an improved 2TB of expandable storage, Galaxy A17 5G makes it easy to keep cherished photos, videos and important files readily accessible whenever you need them.³
- BUILT TO LAST: With an improved IP54 rating, Galaxy A17 5G is even more durable than before.⁴ It’s built to resist splashes and dust and comes with a stronger yet slimmer Gorilla Glass Victus front and Glass Fiber Reinforced Polymer back.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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