You’re on the water, scanning for structure, but your current fish finder only shows a narrow cone beneath the boat. You know fish are holding on that submerged ridge, but you can’t see them until you’re right on top. Side imaging changes everything, letting you see a wide swath of the bottom and water column to either side of your boat. This guide breaks down the best side imaging fish finders of 2026, focusing on models that deliver clear, detailed images to help you locate fish faster. Whether you’re a serious angler or a weekend warrior, we’ve got you covered.
We’ve evaluated the top side imaging units from Humminbird, comparing their sonar technology, GPS capabilities, and screen quality. For a broader look at the best fish finders across all types, check out our comprehensive guide.
Buying Guide
Sonar Technology: MEGA Imaging vs. Standard Side Imaging
The heart of any side imaging fish finder is its sonar. Humminbird’s MEGA Imaging technology uses a higher frequency (1200 kHz) to deliver incredible detail, showing fish, structure, and even bait with remarkable clarity. Standard side imaging, like that found in older models, operates at 455 kHz and offers a wider but less detailed view. For the best side imaging fish finder experience, look for MEGA Side Imaging+ which offers up to 200 feet of range on each side, as seen on the Humminbird XPLORE 9 GPS Fish Finder.
Dual Spectrum CHIRP sonar is another crucial feature. It provides both a wide mode for maximum coverage and a narrow mode for detailed scanning of specific targets. This combination allows you to find fish quickly and then zoom in for a closer look. All the models we reviewed include this versatile sonar.
GPS and Chartplotting
A fish finder with built-in GPS is essential for marking waypoints, following contours, and navigating back to productive spots. Humminbird’s Basemap includes over 10,000 lakes and coastal charts, giving you a solid starting point. For even more detail, consider models that support LakeMaster or Navionics charts. The Humminbird Helix 7 G4 GPS Fish Finder is an excellent choice for anglers who want reliable GPS without breaking the bank.
AutoChart Live is a game-changer. This feature lets you create real-time maps of depth contours, bottom hardness, and vegetation as you fish. It’s like having a custom map of your favorite lake, built with every pass. This is especially valuable for kayak anglers and those who fish smaller, less-charted waters. For more on kayak-specific models, see our best kayak fish finder.
Display and Control
Your fish finder’s screen is your window to the underwater world. A larger, high-resolution display makes it easier to distinguish fish from structure and interpret side imaging returns. Look for models with at least 7 inches of screen space, and consider touchscreen capabilities for quicker menu navigation. The Humminbird XPLORE 10 GPS Fish Finder offers a 10-inch HD touchscreen, providing a clear, responsive interface.
Keypad controls are also important, especially in rough conditions or when wearing gloves. A combination of touchscreen and keypad, as found on the XPLORE series, offers the best of both worlds.
Connectivity and Networking
Modern fish finders are part of a larger network. Bluetooth connectivity allows you to pair with wireless trolling motors and receive smartphone notifications. Ethernet ports enable you to share data between multiple units on your boat. NMEA 2000 compatibility ensures seamless integration with other marine electronics. If you plan to expand your setup, choose a model with these features. For ice fishing, a portable unit might be more suitable; check out our ice fishing fish finder recommendations.
Final Thoughts
Choosing the best side imaging fish finder comes down to your specific needs and budget. For those who want the ultimate in performance and screen size, the Humminbird XPLORE 12 GPS Fish Finder stands out with its massive 12-inch display and premium sonar. If you’re looking for a more budget-friendly option that still delivers excellent side imaging, the Humminbird Helix 7 G4 GPS Fish Finder is a fantastic choice, offering MEGA Imaging and GPS at a more accessible price point. Both will dramatically improve your ability to find and catch fish.
Frequently Asked Questions
What is the best side imaging fish finder for the money?
For the best value, the Humminbird Helix 7 G4 offers MEGA Side Imaging and GPS at a reasonable price. It provides excellent performance for most anglers without the premium cost of larger flagship models.
How far can side imaging see?
Side imaging range varies by model and frequency. MEGA Side Imaging+ from Humminbird can reach up to 200 feet on each side, giving you a total swath of 400 feet. Standard side imaging typically reaches 125 to 150 feet per side.
Do I need a transducer for side imaging?
Yes, the transducer is what emits and receives the sonar signals. Some models come with a transducer included, while others, like the XPLORE 10 and 12 control head only versions, require you to purchase a compatible transducer separately. Make sure to check what’s included before buying.
Can I use side imaging in shallow water?
Yes, side imaging works well in shallow water, often better than down imaging, because it scans horizontally. This makes it ideal for finding fish near shorelines, docks, and weed beds. For more tips on using side imaging, visit our side imaging fish finders category.
