10 Best Fish Finders 2025 in the UK

The Garmin STRIKER Plus 4 is a compact and user-friendly fish finder ideal for casual anglers and small boat users. Its 4.3-inch bright display is easy to read even in sunlight, making it practical for daytime fishing trips. The device uses a dual-beam transducer with Garmin’s CHIRP sonar technology, which provides clear underwater images and helps distinguish between fish and other objects, improving your chances of spotting fish accurately.

It features built-in GPS and Quickdraw Contours mapping software, allowing you to mark fishing spots, create custom maps with detailed 1-foot depth contours, and track your boat’s speed. This is useful for both beginners and more serious anglers who want to navigate and remember productive locations. The unit is rugged with an IPX7 water rating, meaning it can handle splashes and rain without trouble.

While the screen size is relatively small compared to higher-end models, which might limit how much detail you can see at once, this model offers good value with decent sonar clarity and GPS features, especially for small boat or kayak fishing. Those needing a larger screen or more advanced mapping capabilities may want to explore higher-tier options.

The Deeper PRO+ 2 is a versatile and portable fish finder that works well for a range of fishing styles including kayak, boat, shore, and ice fishing. It offers multiple sonar beams (wide, mid, and narrow) which help quickly scan large areas or focus on specific spots—great for finding fish efficiently. With accurate target separation down to about 1 cm, it can clearly identify fish and even small lures, making it a solid choice for anglers looking for precision.

Its built-in GPS and mapping feature stand out, allowing you to create bathymetric maps just by casting and reeling, which is useful for tracking fishing spots over time. The device connects to your phone via its own Wi-Fi network for stable communication and uses a free app to display data, making it user-friendly without needing complicated equipment. The screen is relatively small at 2.4 inches with OLED or LCD display, which might feel limited if you prefer a larger, more detailed view. Battery life is decent at up to 9 hours, suitable for a full day out. The product is lightweight and wireless, adding to its convenience and portability.

The Deeper PRO+ 2 is a smart, portable fish finder with accurate sonar and mapping capabilities, ideal for anglers who want an easy-to-use tool they can take anywhere. It works especially well for those who fish from kayak, shore, or ice and want detailed location info without bulky gear. If you prefer larger screens or more powerful sonar, other options may better meet those needs.