Back to overview

13-05-2025

Differences Between Samsung Galaxy S and A Series: What Every Mobile Repair Technician Needs to Know

If you run a mobile repair shop, you undoubtedly see Samsung phones on your workbench regularly. Devices from the Galaxy S and Galaxy A series are likely among the most common. While they may look similar at first glance, there are important differences between the two lines. In this blog, we’ll explain those differences in a simple and clear way. This will help you work more efficiently, know what to expect, and explain issues to your customers more effectively.

Back to Basics: The Difference Between the Galaxy S and A Series

Samsung Galaxy S-serie: premium smartphones

The Samsung Galaxy S series consists of Samsung's higher-end devices. They've been on the market since 2010 and have become more advanced each year. Think of models like the Galaxy S23 or S24. These phones feature a sleek design with a glass back and a metal frame. The display is often curved and extends to the edges, giving the device a premium look and feel.

These phones come with fast processors, high-quality cameras, and the latest cutting-edge technology. While that’s great for the user, it often makes repairs more challenging and expensive for you as a technician when it comes to replacing parts.

Samsung Galaxy A Series: Affordable with Solid Performance

The Samsung Galaxy A series is designed for people who want a good phone without paying top dollar. Think of models like the Galaxy A14, A34, or A54. Generally, the higher the number, the more advanced the device.

A-series models usually have a plastic back and a flat screen with slightly thicker bezels. This makes them lighter and easier to open during repairs. As a result, they’re a popular choice for younger users, students, or customers on a tighter budget.

Key Differences for Repair Technicians

Build Quality and Materials

Galaxy S Series: Glass on both the front and back, surrounded by aluminum. This gives the device a premium look, but also makes it more fragile. Removing the back can be difficult and carries a risk of glass shattering.
Galaxy A Series: Usually has a plastic back. Much easier to open without the need for special tools, making it ideal for quick battery or camera replacements.

Important Note: When working on S models, extra caution and experience are essential during disassembly, as there's a higher risk of breakage or damage while opening the device.

Screen Technology and Bezels

Galaxy S Series: Curved, high-quality AMOLED displays. They offer stunning visuals but are expensive and more difficult to replace. The edge-to-edge screens are also more prone to damage when dropped.
Galaxy A Series: Flat LCD or AMOLED screens with wider bezels. Repairs are simpler and more affordable.

When repairing a screen on an S model, you’ll need more time, precision, and specialized tools such as opening tools and ESD-safe equipment to avoid damaging sensitive components.

Internal Structure and Components

Galaxy S Series: Compactly built devices with many advanced components such as high-end cameras, sophisticated sensors, and powerful processors. Repairs are often more complex.
Galaxy A Series: Simpler and more modular construction. Parts like the USB port, speaker, or battery are easier to replace.

Software Support

Galaxy S Series: Typically receives 4–5 years of software and security updates.
Galaxy A Series: Has shorter support, usually 2–3 years.

Note for older A models: Software issues can sometimes resemble hardware problems, but that’s not always the case.

Common Repairs by Samsung Series

Galaxy S-series

Screen replacement (due to curved design and fragility)
Back cover replacement (glass back breaks easily)
Water damage (often after previous repairs where the device wasn’t sealed properly)

Galaxy A-series

Charging port issues (frequent use causes faster wear)
Battery replacement (after heavy use)
Speaker/microphone problems (due to dust or wear)

Features of the Galaxy S and A Series at a Glance

Conclusion

Whether you're working on a high-end Galaxy S or an affordable Galaxy A, it's important for repair technicians to understand the differences between these two series. The S series offers premium materials, powerful performance, and advanced technology, but requires more experience, precision, and tools during the repair process. On the other hand, the A series is more accessible, easier to open, and therefore often quicker and cheaper to repair.

Stay updated on the latest developments and updates by following our blogs and connecting with us on LinkedIn.

FDX LITE

To offer our customers an affordable option, we introduce FDX Lite. These screens have an HD resolution and provide the best quality within this price segment. While we conduct strict quality controls, we have no influence on the production process. FDX Lite screens come with a factory warranty, but damage to the interior of the screen is not covered by the warranty.

Features	FDX LITE
Pixel resolution	High Definition (HD)
Refresh rate	Fast response
Includes	Camera holder, earpiece mesh and proximity bracket
Temperature	Low and controlled
360° Polarized	Supported
Oil resistant coating	Supported
Anti-glare	Supported
Front Glass	Anti-dust and fingerprint oil
Inspection	Tested before shipment
Warranty	Covered

Service Pack

These parts are original and manufactured in a certified environment by the original manufacturer of the device.

Pulled

These parts are 100% authentic and undergo rigorous testing and inspection after being removed from an original pre-owned device.

Refurbished

These parts have been removed from an original pre-owned phone, but the front glass has been replaced with a glass equivalent to the original, while all other materials have remained authentic.

OEM-Equivalent

These parts are professionally assembled by a third party using equivalent components and materials to the original manufacturer.

FDX ULTRA

Soft OLED is a high-quality LTPS-OLED solution offering excellent value for money. Thanks to its flexible COP design, the display is thin, lightweight, and less prone to breakage, while delivering bright and vibrant visuals close to OEM-level quality. The touch response is fast and precise, and each batch is carefully tested for color, stability, and performance. This allows professional repair technicians to rely on consistent quality, high compatibility, and a dependable display that looks premium without the premium price tag.

FDX PRO

Hard OLED is an affordable OLED solution that combines bright, sharp image quality with strong price positioning. The rigid COF panel provides a solid construction that performs well in everyday use. Colors are vibrant, brightness is strong, and touch response remains accurate. Each batch is checked for stability, uniformity, and sensitivity, ensuring technicians can rely on consistent quality. Hard OLED is ideal for customers who want a competitive price without sacrificing reliable performance and visual clarity.

FDX ELITE

FDX Elite is our premium product, where we work closely with the manufacturer to optimize quality. We make improvements based on customer feedback and our own expertise. Due to our direct influence on the production process, we have full confidence in the quality. Therefore, we offer extensive warranty coverage on these screens: even damage inside the screen (which is normally not covered) is included. However, if damage is visible to the naked eye, whether inside or outside, the warranty becomes void. Our FDX Elite screen has an FHD+ resolution and will be the most expensive option due to its added value and extensive warranty. With this quality and service, we aim to provide a worry-free experience for our customers.

FDX PRIME

FDX Prime represents the standard in-cell quality, purchased directly from the manufacturer, just like other suppliers in the market. The choice of manufacturer depends on the quality of the production batch, and the products meet the highest in-cell quality standards in the market. FDX Prime screens have an FHD resolution and come with a regular factory warranty. This means that damage to the interior of the screen is not covered.