Welcome to our examination of the Garmin Fishfinder 90. Here we will take a look at a description of the Garmin 90, look at and compare reviews from actual users of this model (both positive and negative), and give an overall rating and recommendation.

Garmin Fishfinder 90 Description & Features

Just the thing for any boat where space is limited, the Garmin Fishfinder 90 is a small, beginner’s sonar fish finder that helps make locating fish more straightforward than ever.

Are Batteries IncludedYes
Screen Size4 Inches
Display TypeBlack and White FSTN
Item Dimensions LxWxH4.72 x 2.43 x 4.94 inches
Map TypeFreshwater

The Garmin 90 incorporates a transom & trolling mount, dual-beam transducer for superior shallow water effectiveness, and a 60-degree viewing angle to help you to discover fish that might not be located directly below the vessel.

Garmin FishFinder 90 Fishfinder

  • Full-Featured Sonar With 4-Inch, 64 X 128 B&W Fstn Display
  • Ultrascroll High Rep Rate Sonar
  • Autogain Technology For Visibility Of More Fish

The Garmin 90 Fishfinder is engineered to provide you with rapid and straightforward data when it’s needed.

With Ultrascroll and a 64×128 display, the Garmin 90 provides among the clearest screens for the investment.

You also get automatic rescaling and a power-down backup system that guarantees that your setting will be saved when you power the unit off.

Added capabilities include automatic and manual zoom of 2X and 4X and a depth of 600 feet.


  • Full-Featured Sonar With 4-Inch, 64 X 128 B&W Fstn Display
  • Ultrascroll High Rep Rate Sonar
  • Dual-Beam Transducer With Selectable Narrow (14 Ft) Or Wide (45 Ft) View For Maximum Freshwater Performance
  • High-Dynamic Range, Analog Receiver Performs In Water As Little As 1 Ft Deep
  • Autogain Technology For Visibility Of More Fish

Garmin Fishfinder 90 Reviews


  • Installation was simple and everything needed is in the box. Tested it out on the river and it worked great.
    — J.T.
  • This is a nice affordable fish finder for use on a small boat and or Kayak/canoe use. Swivil mount and compact.
    — C.P.
  • I measured the depth with a pole and compared with Garmin and the accuracy was within 0.5 inches!
    — Z.S.


We hope you found this blog post helpful in learning more about the Garmin FishFinder 90. The Garmin FishFinder 90 is a great choice for salt and fresh water fishermen alike.

With the ability to show you where fish are on your screen, it eliminates guesswork about what kind of bait or lure to use. It also has an amazing sonar display that makes catching fish easier than ever before.

If you’re looking for an easy way to catch more fish at home or in the boat, then this device would be perfect for you.

You can see all sorts of different features here on our website. We hope we’ve answered any questions you may have had about this product today and look forward to hearing from you soon.

4.7/5 - (15 votes)

Welcome to FishFinder Review. Here at we will be examining a variety of popular fish finders, depth finders, GPS, and chartplotters.

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