Fish finder comparisons, sonar features, and setup guidance.

Fish Finder Critic

Find clear fish finder buying guides, sonar explanations, and setup tips. Learn how CHIRP, side imaging, frequencies, depth readings, and settings work.

Latest guides

  • Scotty #230 Powerlock Rod Holder with #241
    Rod Holders

    Best Fishing Rod Holders for Boats

    Compare the best fishing rod holders for boats by mount style, rod capacity, adjustment, materials and use on pontoons, kayaks and larger boats.

  • Skog Å Kust SandSåk 2-in-1 PWC Anchor
    Boat Anchors

    Best Boat Anchor Bags and Covers

    Compare the best boat anchor bag options for storage, wet rope drainage, sand anchoring and deck protection on boats, kayaks and personal watercraft.

  • Humminbird 740093-1 MHX XNT
    Fish Finder Guide

    Best Transducer Mounts for Humminbird HELIX 5

    Compare the best Humminbird HELIX 5 transducer mount options, including transom hardware, metal brackets, mounting plates and kayak-friendly setups.

  • LUCKY Kayak Portable Fish Depth Finder Water
    Fish Finder Guide

    Best Fish Finders Under $200

    Compare the best fish finder under 200 dollars options for kayaks, boats, shore fishing and ice fishing, with sonar, screen and setup advice.

  • VAUBORTTI Aluminum Ball Mount for Garmin Striker
    Fish Finder Guide

    Best Fish Finder Mounts for Portable Units

    Compare the best fish finder mounts for portable units, including clamp, track, ball and drill-down designs for kayaks, boats and shared setups.

  • Humminbird 411660-1 Helix 5 Chirp GPS G3
    Fish Finder Guide

    Best Portable Humminbird Fish Finders

    Compare the best Humminbird portable fish finder options for boats, kayaks and ice fishing, including sonar, GPS, power and transducer choices.

  • Garmin 010-01550-00 Striker 4 with Transducer
    Imaging And Live Sonar

    How Does PingLive Sonar Work?

    Learn how PingLive sonar works, what equipment a wireless live-sonar setup needs, how data reaches your screen, and which fish-finder parts fit your boat.

  • Vivelancia Screen Protector Tempered Glass 2-Pack Compatible
    Screen Reading And Settings

    How to Set Up and Use a Lowrance Eagle Eye 9

    Set up Lowrance Eagle Eye 9 settings for clear sonar, live imaging, GPS, depth tracking, screen views, and practical fishing use in changing water.