Garmin 010-01870-00 Striker Plus 4 with Dual-Beam transducer vs Garmin GT56UHD-TM Transom Mount Transducer
Updated August 2026 — Garmin 010-01870-00 Striker Plus 4 with Dual-Beam transducer wins on mapping features, Garmin GT56UHD-TM Transom Mount Transducer wins on image quality and installation.
The Garmin Striker Plus 4 is an affordable and user-friendly option for casual anglers, while the Garmin GT56UHD-TM offers advanced features for serious fishermen. Choose based on your fishing needs and budget.
Why Garmin 010-01870-00 Striker Plus 4 with Dual-Beam transducer is better
Price
Striker Plus 4 is significantly cheaper at $159.99.
Ease of Use
Striker Plus 4 is ready to use out of the box.
Display Size
Striker Plus 4 has a compact 4.3” display.
Why Garmin GT56UHD-TM Transom Mount Transducer is better
Sonar Technology
GT56UHD-TM offers Ultra High-Definition sonar.
Depth Performance
GT56UHD-TM can see targets up to 800 feet below.
Versatility
GT56UHD-TM supports multiple scanning frequencies.
Overall score
Specifications
| Spec | Garmin 010-01870-00 Striker Plus 4 with Dual-Beam transducer | Garmin GT56UHD-TM Transom Mount Transducer |
|---|---|---|
| Transducer Type | Dual-Beam | Transom Mount |
| GPS | Yes | No |
| Sonar Frequencies | 50/77/83/200 kHz | 455/800/1000 kHz |
| Display Resolution | 272 x 480 | N/A |
| User Interface | Intuitive | Requires Chartplotter |
Dimension comparison
Overview of the Products
In this comparison, we look at the Garmin 010-01870-00 Striker Plus 4 with Dual-Beam transducer and the Garmin GT56UHD-TM Transom Mount Transducer. The Striker Plus 4 is priced at $159.99, making it significantly less expensive than the GT56UHD-TM, which costs $487.20, a difference of about 204%. Each product serves different needs within the fishing community, with distinct features that cater to various fishing environments.
Features of the Garmin Striker Plus 4
The Garmin Striker Plus 4 boasts essential features suitable for both novice and experienced anglers. It includes a dual-beam transducer with Garmin Chirp traditional sonar, providing crystal-clear images and remarkable target separation. The built-in GPS functionality allows users to mark waypoints and create routes, enhancing navigation on the water. With a compact 4.3” display that's sunlight-readable and an intuitive user interface, the Striker Plus 4 is designed for ease of use in rugged fishing conditions. It supports multiple traditional sonar frequencies, ensuring versatility in various water types.
Features of the Garmin GT56UHD-TM
The Garmin GT56UHD-TM Transom Mount Transducer offers advanced sonar technology for serious anglers. It features Ultra High-Definition SideVü scanning sonar with a 20% greater range at 1000 kHz, along with ClearVü scanning sonar for high-definition images. This transducer provides three scanning sonar frequencies—455 kHz, 800 kHz, and 1000 kHz—allowing for exceptional depth performance. With 500 watts of power, it delivers precise clarity, showing targets up to 800 feet below the boat. The vivid color palettes make it easier to distinguish between different structures and targets, enhancing the fishing experience significantly.
Display and Usability
When it comes to display and usability, the Garmin Striker Plus 4 features a bright 4.3” screen with a resolution of 272 x 480 pixels, which is adequate for basic fish finding and navigation. Its intuitive interface allows for easy operation, even for beginners. In contrast, the GT56UHD-TM is designed to be used with a compatible Garmin chartplotter, which typically features larger and more advanced displays. This means that while the GT56UHD-TM does not have its own display, it provides superior image quality when paired with a high-definition screen, making it ideal for professionals who want the best visual data while fishing.
Installation and Compatibility
The Garmin Striker Plus 4 is ready to use out of the box, requiring minimal installation effort. Its built-in features and simplicity make it a great choice for those who want a straightforward setup. Conversely, the GT56UHD-TM is designed to be mounted on transoms or trolling motors, and while it is easy to install, it requires a compatible Garmin chartplotter for full functionality. This means that users need to invest in additional equipment if they do not already own a compatible display unit, which could add to the overall cost.
Performance in Different Fishing Environments
In terms of performance, the Garmin Striker Plus 4 excels in typical fishing environments, providing reliable data and navigation tools for both freshwater and saltwater fishing. Its rugged design ensures durability in various conditions. On the other hand, the GT56UHD-TM is tailored for more specialized fishing scenarios, offering ultra-high-definition imaging that benefits anglers targeting specific structures or depths. The ability to see up to 500 feet on each side of the boat with SideVü scanning sonar provides a significant advantage for those looking to locate fish quickly and efficiently.
Price Comparison
Price is a critical factor for many buyers, and the difference between the two products is substantial. The Garmin Striker Plus 4 is priced at $159.99, which is about 204% cheaper than the GT56UHD-TM, priced at $487.20. For those on a budget or just starting with fish finding, the Striker Plus 4 presents an attractive option. However, serious anglers willing to invest more for advanced features may find the higher price of the GT56UHD-TM justified given its superior technology and performance capabilities.
Which should you buy?
The decision between the Garmin Striker Plus 4 and the Garmin GT56UHD-TM ultimately comes down to your specific fishing needs and budget. If you are a casual angler looking for a reliable, user-friendly fish finder that offers essential features at an affordable price, the Striker Plus 4 is an excellent choice. However, if you are a serious fisherman who demands high-definition imaging and advanced sonar capabilities, the GT56UHD-TM is worth the investment. Consider your fishing style and environment, as well as your budget, to make the best choice for your needs.

