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

The Humminbird 411670-1 Helix 5 Chirp DI GPS G3 is a solid fish finder for those using a Jon boat. It offers a 5-inch color TFT display, which is a decent size for viewing in a compact boat. The screen resolution is good, making it easier to see details beneath the water. The inclusion of CHIRP Down Imaging and Dual Spectrum CHIRP sonar are major positives, offering clear and detailed views to locate fish and structures underwater efficiently.

The transducer included is of high quality and enhances the performance of the sonar features. The internal GPS capability with Humminbird Basemap adds a lot of value, allowing you to navigate confidently and identify important points of interest. The ability to create real-time maps using AutoChart Live is an excellent feature for those who frequently fish in different locations.

However, the device is not the most portable due to its size and requires a DC power supply, which might not be convenient for all users. Additionally, it ranks #174 in Fish Finders & Depth Finders, showing that there are many other popular options available. The build, primarily made of plastic, may not be the most durable over time. This fish finder is best suited for those who prioritize detailed imaging and GPS navigation over portability and durability.

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 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.