10 Best Fish Finder For Jon Boat 2025 in the United States

The Humminbird 411920-1 Helix 7 SI GPS G4 fish finder is a solid option for jon boat owners looking for a reliable and feature-rich device. Its 7-inch color TFT screen offers a clear and sizable display, which is particularly beneficial for viewing detailed fish arches and underwater structures. The CHIRP Down Imaging and Dual Spectrum CHIRP sonar provide excellent clarity and detail, enabling you to filter out noise and get a precise view beneath your boat. The device also includes an internal GPS with a comprehensive basemap covering over 10,000 lakes and coastal areas in the U.S., making navigation easier and safer.

Additionally, the AutoChart Live feature allows you to create real-time maps of your fishing spots, which is a valuable tool for avid anglers. The included transom-mount transducer ensures reliable performance, and the softkey controls make it easy to operate in different conditions. However, the device’s portability might be a concern due to its 5-pound weight and larger size. It's not the most compact option, which might be an issue if space is limited on your boat.

The one-year limited warranty is relatively standard but may not offer the extended coverage some users prefer. Despite these minor drawbacks, the Humminbird 411920-1 Helix 7 SI GPS G4 stands out for its advanced sonar capabilities, comprehensive mapping features, and user-friendly design, making it a strong contender for serious fishers using a jon boat.

The Lowrance Eagle Eye 9” Live Sonar is an impressive fish finder that offers a range of features well-suited for use on a Jon boat. One of its primary strengths is the variety of sonar views it provides, including Live Forward, Live Down, CHIRP Sonar, and DownScan Imaging with FishReveal, which can help you locate fish with precision. The autotuning live sonar is another benefit, as it adjusts settings automatically, making it easier for you to get accurate readings without constant manual adjustments. This is particularly useful for beginners or those who prefer a more hands-off approach.

The detailed C-MAP charts with Genesis Live add value by offering comprehensive and up-to-date cartography, assisting you in navigation and fishing spots identification. Another highlight is the 9-inch IPS screen, which ensures clear visibility from all angles, even when wearing polarized sunglasses, making it practical for outdoor use in various lighting conditions. The twist-lock connector system simplifies installation, which is a plus for anyone who isn’t particularly handy with tools or has limited time for setup.

However, there are a few drawbacks to consider. The unit is relatively large and may take up significant space on smaller Jon boats. Additionally, at a weight of 3.05 kilograms, it’s not the lightest option available, potentially affecting portability. The battery powered setup is convenient, but being diligent about power management is important for prolonged use. Lastly, the price point might be on the higher side for casual fishers, considering it sits at a mid-tier position within the market. The Lowrance Eagle Eye 9” offers robust features and reliable performance, making it a good fit for serious anglers looking for an advanced, yet user-friendly fish finder on their Jon boat.

The Lowrance HOOK Reveal 5 SplitShot is a solid choice for Jon boat enthusiasts looking to improve their fishing experience. One of its standout features is the FishReveal technology, which makes it easier to spot and identify fish by combining CHIRP sonar and DownScan Imaging. This is particularly useful for anglers who want clear, detailed views of fish and underwater structures. The device also boasts high-detail inland mapping with preloaded maps of almost 4,000 US lakes and the ability to create custom contour maps using Genesis Live, making it easier to find fish quickly.

The SplitShot transducer offers excellent underwater views with its combination of wide-angle high CHIRP sonar and DownScan Imaging, which should appeal to those wanting detailed images beneath their boat. Additionally, the autotuning sonar feature adjusts settings automatically, saving you time and effort as conditions change. The 5-inch SolarMAX display provides excellent clarity and visibility, even in direct sunlight, ensuring you can see your screen clearly in various lighting conditions.

However, there are a few drawbacks to consider. The 5-inch screen size, while sufficient for many, might be on the smaller side for some users who prefer larger displays. Portability could be somewhat limited as the unit isn't particularly compact or lightweight. Additionally, the 12 Volt DC power source means you'll need an appropriate battery setup for your Jon boat. Despite these minor issues, the Lowrance HOOK Reveal 5 SplitShot is equipped with powerful features that make it a valuable tool for any angler looking to improve their fish-finding capabilities on US inland waters.