Samsung Galaxy S25+: Underwater photography review - our 2026 test.

To learn how to get the most out of your gear underwater, discover the [AquaExposure Training](/lms). # Samsung Galaxy S25+: Underwater photography test - 2026 review.

The world of underwater photography is evolving rapidly. Smartphones are playing an increasingly important role. The Samsung Galaxy S25+ is entering the market with promises. We put it to the test in natural light. No frills, just the facts. We want to see if this model can handle the demands of the ocean. Image quality is our priority. So is the robustness of the system. You want sharp photos and accurate colors. That's what we tested. Forget marketing numbers. Only real-world performance matters here.

The Samsung Galaxy S25+ receives an overall score of 3.5/5 for underwater photography in natural light. It's a good companion for occasional divers. It's also suitable for beginners who want to improve. Its ideal user profile: the photographer who seeks simplicity. Someone who doesn't want to be weighed down by heavy equipment, but still demands quality.

B1 - Optics

The Samsung Galaxy S25+ offers high-quality optics. The image sharpness is excellent. The colors are accurate. In natural light, the images are bright. The sensor handles contrasts well. This is a key feature for underwater photography. You get precise details, even on distant subjects. Distortion is well controlled. This is an advantage for wide-angle shots.

For more details: The S25+ uses a high-performance sensor. Its image processing is optimized. It offers good dynamic range. This helps to recover information in both dark and bright areas.

B2 - RAW

The ability to shoot in RAW is a significant feature. The S25+ allows you to do this. The files are rich in information. You have great freedom in post-production. This is what matters to demanding photographers. Correcting white balance becomes easy. Adjusting exposure is also easier. The RAW format gives you complete control over your image.

"For more information: The S25+ does not offer a heavy native log format. However, the RAW format remains very effective. It allows for in-depth color correction. The files are compatible with standard editing software."

B3 - Storage

The internal storage of the S25+ is generous. You can store a lot of photos. However, data transfer is a bit slow. The USB 3.2 (5 Gbps) gets the job done. But it's not as fast as the S26 Ultra or the S24 Ultra. Quick Share is very effective for wireless transfers. It's a good alternative for fast transfers.

For more details: The S25+ uses USB 3.2 (5 Gbps). The S26 Ultra and the S24 Ultra use USB 3.2 (10 Gbps). Wi-Fi 6E is included. Wi-Fi 7 is available on newer models.

B4 - Thermal

The aluminum frame of the S25+ presents a risk. Condensation may appear, especially after successive dives or in colder waters. This is something to be aware of. The S23 Ultra had this problem. The S26 Ultra and the S24 Ultra are made of titanium, which reduces this risk. Be sure to carefully inspect your device after each dive.

"For more information: The aluminum frame is less effective at dissipating heat than titanium. The temperature difference between the inside and outside of the casing can cause condensation. This can affect the visibility of the screen."

B5 - Battery

The S25+ has good battery life. You can do several dives without worrying about the battery. That's what matters in the field. A day with three dives is manageable, with proper settings management. Disable the GPS. Lower the screen brightness. These small actions extend battery life.

For more details: The battery of the S25+ is optimized. The Snapdragon 8 Elite Gen 2 processor is energy-efficient. This provides a good balance between power and battery life.

Before each diving session, remember to check your external battery. Use our portable battery comparator tool to choose the right power bank for your dive equipment and desired battery life.

B6 - Autofocus

The autofocus on the S25+ is fast. In good lighting, it locks onto subjects well. This is important underwater. However, in low light, it can hesitate. Especially with moving subjects. You need to anticipate or get closer. This is a limitation to be aware of. The real issue is responsiveness and precision.

To learn more: The S25+ benefits from improved autofocus. It uses phase detection algorithms. However, the lack of LiDAR may be noticeable in challenging conditions.

B7 - Enclosure

The choice of case is crucial. For the S25+, the Divevolk SeaTouch 4 Max is a reliable option. It offers perfect protection and full access to the touchscreen. This is a key point for ergonomics, allowing you to use all the functions of your phone without any limitations. Be sure to check the compatibility with your specific model.

To learn more: The Divevolk SeaTouch 4 Max is compatible with many smartphones. The Platinum version is often required for the latest Ultra models. Make sure you have the correct adapter.

Containers

The Divevolk SeaTouch 4 Max is the reference housing. It is robust and reliable. It allows you to use the touchscreen underwater, which is a huge advantage. Other brands offer universal housings, but compatibility can sometimes be uncertain. The SeaTouch 4 Max is a safe bet for the S25+.

Terrain workflow

Your workflow is simple. Prepare your phone. Place it in the case. Check for waterproofing. Submerge it. Take your photos. The transfer is easy. Either via USB cable or through Quick Share. RAW processing can then be done on your computer. It's a seamless process.

Key Considerations

The risk of condensation is the main point to watch out for, especially with the aluminum housing. Be sure to thoroughly dry your device before and after each dive. The autofocus in low light can be a bit slow. Anticipate your shots. The S25+ doesn't have native Log recording. However, the RAW format compensates well for this lack.

Prix

The Samsung Galaxy S25+ is an investment. The price of the phone, plus the cost of the waterproof case. It's a budget to consider. But you get a versatile device that can be used for everyday life and underwater photography. It's a good value proposition for many divers.

The Samsung Galaxy S25+ is a good smartphone for underwater photography in natural light. It doesn't compete with dedicated cameras, but it offers very respectable image quality. Its key strength is its versatility. You get a powerful phone and an underwater camera capable of taking great shots. It's a smart choice for divers who want beautiful images without breaking the bank or carrying extra equipment. The main things to watch out for are managing condensation and mastering the RAW settings. It's a good tool for exploring the underwater world.

Want to master underwater photography with your Samsung Galaxy S25+? AquaExposure is here to help. Our courses are designed for you. Learn composition techniques. Master your device's settings. Discover the secrets of natural light. Visit our learning platform to learn more: [Access a specialized course for photography with smartphones and action cameras](/en/blog/Overheating and condensation on smartphones in underwater housings.

Are you hesitating between several devices? Use our underwater photography equipment comparison tool to compare this device with other tested models.