Deeper PRO+ 2 Sonar Fish Finder vs Garmin GT56UHD-TM Transom Mount Transducer
Updated August 2026 — Garmin GT56UHD-TM Transom Mount Transducer leads on performance and features.
The Deeper PRO+ 2 offers affordability and portability, while the Garmin GT56UHD-TM excels in advanced sonar technology. Choose based on your fishing needs.
Why Deeper PRO+ 2 Sonar Fish Finder is better
Price
Deeper PRO+ 2 is significantly cheaper at $159.99.
Portability
Deeper PRO+ 2 is a castable device, enhancing mobility.
User-Friendly
Deeper PRO+ 2 has a user-friendly app for easy tracking.
Why Garmin GT56UHD-TM Transom Mount Transducer is better
Sonar Quality
Garmin GT56UHD-TM provides Ultra High-Definition sonar.
Depth Capability
Garmin GT56UHD-TM can scan depths up to 800 feet.
Installation
Garmin GT56UHD-TM offers advanced features for serious anglers.
Overall score
Specifications
| Spec | Deeper PRO+ 2 Sonar Fish Finder | Garmin GT56UHD-TM Transom Mount Transducer |
|---|---|---|
| Sonar Type | Standard | Ultra HD |
| Connectivity | Wi-Fi | Chartplotter |
| Mapping | Yes | No |
| Installation | Easy | Complex |
| User App | Yes | No |
Dimension comparison
Overview of the Deeper PRO+ 2 and Garmin GT56UHD-TM
The Deeper PRO+ 2 Sonar Fish Finder is priced at $159.99, making it significantly more affordable than the Garmin GT56UHD-TM Transom Mount Transducer, which retails for $487.20. This price difference of about 66% highlights a notable distinction in budget considerations for anglers. While both devices cater to fishing enthusiasts, their features and applications vary greatly, appealing to different user needs.
Design and Portability
The Deeper PRO+ 2 is designed for portability, being a castable fish finder that is lightweight and sleek, making it an excellent addition to any tackle box. It's particularly advantageous for kayak, boat, and ice fishing due to its wireless capabilities. In contrast, the Garmin GT56UHD-TM is a transom mount transducer, which requires installation on a boat, making it less portable. This difference impacts how each product fits into an angler’s routine, with the Deeper being ideal for those who prefer mobility and ease of use.
Sonar Technology
The Deeper PRO+ 2 utilizes advanced sonar technology with a range of up to 330 feet and offers various beam types, including wide and narrow options for targeted fishing. It boasts a target separation of 0.4 inches with its narrow beam. Meanwhile, the Garmin GT56UHD-TM features Ultra High-Definition SideVü scanning sonar with a range of 20% greater at 1000 kHz, alongside ClearVü scanning sonar and traditional CHIRP sonar capabilities. The Garmin can provide clear visuals at depths of up to 800 feet, showcasing its advanced sonar technology for serious anglers looking for high-definition clarity.
Mapping and GPS Capabilities
The Deeper PRO+ 2 is equipped with built-in GPS functionality, allowing users to create bathymetric maps easily from various locations, such as the shore or dock. This feature is integrated with the Fish Deeper app, enhancing the user experience by saving all created maps. In contrast, the Garmin GT56UHD-TM does not explicitly mention GPS capabilities but focuses on providing detailed sonar imagery. Thus, if mapping and GPS functionality are essential features for you, the Deeper PRO+ 2 holds a clear advantage.
User Experience and Connectivity
The Deeper PRO+ 2 is noted for its user-friendly app that enhances the fishing experience, allowing anglers to track fish and map water bodies with ease. Its Wi-Fi connectivity ensures a stable connection for data transfer, ideal for real-time updates. The Garmin GT56UHD-TM, while offering high-resolution sonar imagery, is designed to work in conjunction with a compatible Garmin chartplotter, which may require additional investment. Therefore, the Deeper offers a more integrated and immediate user experience for casual anglers.
Installation and Setup
Setting up the Deeper PRO+ 2 is straightforward, as it requires minimal effort to get started, making it suitable for those who may not be tech-savvy. Its castable design means no installation is necessary. Conversely, the Garmin GT56UHD-TM necessitates a more involved installation process, as it includes transom and trolling motor mounts. This difference in installation complexity may influence your decision based on your comfort level with technical setups.
Target Audience
The Deeper PRO+ 2 targets casual anglers and those who enjoy fishing in various settings, such as kayaks and boats. Its affordability and portability make it accessible for a broader audience. The Garmin GT56UHD-TM, on the other hand, is tailored more towards serious fishermen who prioritize advanced sonar technology and are willing to invest more for higher performance. The difference in pricing and features suggests that each product serves distinct user demographics effectively.
Which should you buy?
In deciding between the Deeper PRO+ 2 and the Garmin GT56UHD-TM, consider your specific fishing needs and budget. If you seek an affordable and portable option with GPS capabilities and user-friendly features, the Deeper PRO+ 2 is an excellent choice at $159.99. However, if you're willing to invest approximately $487.20 for advanced sonar technology and extensive depth capabilities, the Garmin GT56UHD-TM may be the better fit for serious fishing applications. Ultimately, your choice should align with your fishing style, preferences, and budget.

