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10 Best Side Imaging Fish Finders 2025 in the United States

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Our Top Picks

#1

Winner

Humminbird XPLORE 10 GPS Fish Finder with Transducer, MEGA Side Imaging+ & HD Touchscreen

Rating
10.0
Chosen by1,322
GPS Integration

Most important from
53 reviews

GPS Integration
Side imaging works so well that it eliminates the need for a separate speedometer pickup, providing convenient on-screen speed data.

The Humminbird XPLORE 10 GPS Fish Finder is a solid choice for anglers wanting a clear and detailed view underwater thanks to its 10-inch HD touchscreen with 1280 x 720 resolution. Its MEGA Side Imaging+ sonar covers up to 200 feet on each side, providing sharp images to help spot fish and understand underwater structures better than many basic models. The unit’s Dual Spectrum CHIRP sonar gives flexible options for detecting fish in different water conditions.

For navigation, it includes built-in GPS with detailed maps covering over 10,000 lakes plus additional US and Canada charts, which is great for planning trips and marking fishing spots. The AutoChart Live feature lets you create your own depth and vegetation maps while on the water, adding extra value for serious anglers. Connectivity is another strong point, with high-speed Ethernet and Bluetooth allowing you to connect to other devices like trolling motors or networked fish finders, plus compatibility with NMEA 2000 systems. The transom mount transducer comes included, making setup easier.

This unit requires a corded power source, which means it needs installation on a boat with power access, limiting portability. While it is not the cheapest option, its powerful sonar, large clear display, and advanced mapping features make it well-suited for fishing enthusiasts who want detailed underwater imaging and sophisticated navigation tools without overly complex tech. Beginners might need some time to get used to all features, but the dual control system (touchscreen plus keypad) helps with ease of use.

Rating
10.0
Chosen by1,322
GPS Integration

Most important from
53 reviews

GPS Integration
Side imaging works so well that it eliminates the need for a separate speedometer pickup, providing convenient on-screen speed data.
#2

Garmin ECHOMAP UHD2 94sv with GT56 Transducer, 9" Touchscreen Chartplotter, Garmin Navionics+ U.S. Coastal

Rating
9.4
Screen Size and Resolution
GPS Integration
Transducer Type

Most important from
263 reviews

Screen Size and Resolution
Side imaging resolution is significantly improved in the UHD2 version, allowing better differentiation of underwater structures.
GPS Integration
Maps come preloaded, though you need a blank 32GB micro SD card for software updates.
Transducer Type
Sonar and charts work great, offering clear underwater imaging.
Connectivity
Works well right out of the box but performs even better once linked to the app.

The Garmin ECHOMAP UHD2 94sv is an impressive option for side-imaging fish finders, especially for anglers seeking clarity and ease of use. Its 9-inch touchscreen is bright and easy to read, even in sunlight, which is a significant advantage during outdoor fishing trips. The included GT56-TM transducer offers excellent traditional, ClearVü, and SideVü scanning capabilities, allowing you to see underwater structures and fish with great detail, enhancing your fishing strategy.

One of the standout features is the built-in Garmin Navionics+ coastal charts, which provide detailed mapping that can guide you to the best fishing spots. The device also offers built-in Wi-Fi connectivity, allowing you to share sonar data, waypoints, and routes with other ECHOMAP UHD2 units wirelessly. This is particularly useful if you're fishing with a partner or need to coordinate with others on the water.

While the ECHOMAP UHD2 is packed with great features, it might have a bit of a learning curve for those who are not tech-savvy. Some users may find the multitude of options slightly overwhelming at first. Additionally, while the touchscreen is responsive, using it with wet hands or in the rain could be a challenge, which is something to keep in mind in tougher weather conditions. In terms of power output and frequency, it performs well within its category, though it’s always good to check if it meets your specific fishing needs. The choice of mounting, whether dashboard or flush, adds versatility but may require some additional tools for installation.

For recreational boaters and serious anglers alike, the Garmin ECHOMAP UHD2 94sv provides an excellent combination of functionality and advanced features, establishing it as a strong contender in the side-imaging fish finder market.

Rating
9.4
Screen Size and Resolution
GPS Integration
Transducer Type

Most important from
263 reviews

Screen Size and Resolution
Side imaging resolution is significantly improved in the UHD2 version, allowing better differentiation of underwater structures.
GPS Integration
Maps come preloaded, though you need a blank 32GB micro SD card for software updates.
Transducer Type
Sonar and charts work great, offering clear underwater imaging.
Connectivity
Works well right out of the box but performs even better once linked to the app.
#3

Lowrance Eagle Eye™ 9 Live + C-MAP®, 9" IPS Screen, Eagle Eye™ transducer, C-MAP® Discover microSD Card Charts for The US and Canada

Rating
9.4
Screen Size and Resolution
GPS Integration

Most important from
127 reviews

Screen Size and Resolution
The screen is clear enough to see even small fish swimming.
GPS Integration
Good mapping with the upgraded C-MAP card.

The Lowrance Eagle Eye™ 9 Live + C-MAP® is a sophisticated fish finder that brings several impressive features to the table. It sports a 9-inch IPS screen that offers clear visibility from all angles, even when wearing polarized glasses, which is a great perk for outdoor use. The screen size and resolution are well-suited for detailed underwater viewing, helping you spot fish with ease.

The device also comes with an Eagle Eye™ transducer that provides four different sonar views (Live Forward, Live Down, CHIRP Sonar, and DownScan Imaging with FishReveal), making it versatile for different fishing conditions. Additionally, the autotuning live sonar ensures you get focused down and forward views without manual adjustments, simplifying usage for less tech-savvy users. The detailed C-MAP charts included on a microSD card for the US and Canada enhance navigation and mapping capabilities, which is crucial for serious anglers.

The new twist-lock connector system promises easy installation in various vessels, whether a boat or kayak, adding to its user-friendliness. However, there are a few drawbacks to consider. Firstly, the product’s weight and dimensions may make it a bit bulky for some setups. Secondly, while its screen is a strong point, users looking for larger displays might find the 9-inch screen limiting. Finally, despite being reasonably new to the market, indicated by its release date, the fish finder might not have a long track record of durability. The Lowrance Eagle Eye™ 9 Live + C-MAP® is a powerful tool for anglers looking for a feature-rich, easy-to-use fish finder with excellent sonar views and mapping capabilities.

Rating
9.4
Screen Size and Resolution
GPS Integration

Most important from
127 reviews

Screen Size and Resolution
The screen is clear enough to see even small fish swimming.
GPS Integration
Good mapping with the upgraded C-MAP card.

Buying Guide for the Best Side Imaging Fish Finders

Choosing the right side-imaging fish finder can significantly enhance your fishing experience by providing detailed images of the underwater environment. These devices use sonar technology to scan the water and display images of fish, structures, and the bottom terrain on a screen. To make an informed decision, it's important to understand the key specifications and how they relate to your specific needs and fishing habits.
Screen Size and ResolutionThe screen size and resolution determine how clearly you can see the images produced by the fish finder. Larger screens with higher resolutions provide more detailed and easier-to-read images, which can be crucial for identifying fish and underwater structures. Screen sizes typically range from 5 inches to 12 inches or more. If you often fish in bright sunlight, a larger screen with higher resolution will be easier to read. For casual or occasional fishing, a smaller screen may suffice.
FrequencyFrequency refers to the sonar waves emitted by the fish finder. Higher frequencies (e.g., 800 kHz) provide more detailed images but have a shorter range, making them ideal for shallow waters. Lower frequencies (e.g., 455 kHz) offer greater depth penetration but less detail, suitable for deeper waters. Consider the typical depth of the waters you fish in to choose the appropriate frequency. Some models offer dual-frequency capabilities, allowing you to switch between frequencies as needed.
Power OutputPower output, measured in watts, affects the depth and clarity of the sonar readings. Higher power output allows the fish finder to send stronger sonar signals, which can penetrate deeper waters and provide clearer images. For deep-sea fishing, a higher power output (e.g., 500 watts or more) is recommended. For shallow or freshwater fishing, lower power output may be sufficient.
GPS IntegrationGPS integration allows the fish finder to track your location and create maps of your fishing spots. This feature is particularly useful for marking productive fishing areas and navigating back to them. If you fish in large or unfamiliar bodies of water, GPS integration can be a valuable tool. For those who fish in smaller, well-known areas, this feature may be less critical.
Transducer TypeThe transducer is the component that sends and receives sonar signals. Different transducers offer varying levels of performance. For side-imaging fish finders, a transducer that supports side-scan capabilities is essential. Some transducers are designed for specific mounting locations, such as transom, hull, or trolling motor. Choose a transducer that is compatible with your boat and fishing style.
ConnectivityConnectivity options, such as Wi-Fi or Bluetooth, allow you to connect your fish finder to other devices, like smartphones or tablets. This can enable features like remote viewing, data sharing, and software updates. If you value the ability to access and share your fishing data on multiple devices, look for a fish finder with robust connectivity options. For those who prefer a standalone device, connectivity may be less important.

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