Welcome to our review of the Garmin Fishfinder 140. Here we will examine the features of the Garmin 140, compare and contrast both positive and negative reviews from actual owners, and give an overall recommendation and rating.

Customers have found the Garmin 140 fishfinder easy to use with a clear readout on the 4″ display screen and well worth the money at such a bargain price, especially with the dual-beam transducer which is excellent for shallow water use. 

We are really surprised at all the features that are on this Garmin depth finder at this entry-level price.

This is not the cheapest fish finder out there, but still, under $100, lots of users have raved about this Garmin product.

Easy to install, easy to use, very accurate even in shallow water and overall most are impressed with this portable fish finder that’s under 100 bucks.

Garmin Fishfinder 140 Description & Features

Looking for an affordable entry-level fishfinder with good reviews? The Garmin Fishfinder 140 could be the one instrument you’re looking for on your upcoming fishing trips.

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Garmin Fishfinder 140 Fish Finder

The Garmin 140 also incorporates Ultrascroll which allows for quick screen updates.
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The Garmin 140 features 240 pixels on a 4-level display giving significantly better distinction and contrast to help locate the perfect catch.

The Garmin 140 also incorporates Ultrascroll which allows for quick screen updates.

Are Batteries IncludedYes
Screen Size4.7 Inches
Display Type4-level grayscale FSTN
Item Dimensions LxWxH6.1 x 2.6 x 4.9 inches
Battery Life5 Hours

With user-friendly operation and scaled-down user interface including the ability to change sonar settings without leaving the sonar screen, you will have no problems learning how to use the Garmin and will be finding fish in no time.

Also Check: Garmin 400C Waterproof Fishfinder

Great in shallow water, the Garmin Fishfinder 140 includes a dual-beam transducer, trolling mount, and automatic display rescaling (no more vertical lines!).  

Additional unique features of the 140 include power-down backup, 2X, and 4X zoom capability, and a depth range of 600 feet.


The Garmin 140 portable fishfinder has a four-inch, four-level grayscale display with 128 x 240 pixels and a backlight to enhance the contrast readout of fish and structure.

This depth finder comes with Garmin’s Ultrascroll™ for fast screen updates, a quick adjustment bar if you need to make changes to the settings, and an easy-to-learn and use unit interface so you can get to find fish right away instead of spending time learning how to use it.

  • Full-Featured Sonar
  • 128 X 240 B&W Display – 4.7inch
  • Maximum Freshwater Performance with Dual Beam Transducer With Selectable Narrow (14 Ft) Or Wide (45 Ft) View
  • Ultrascroll High Rep Rate Sonar
  • High-Dynamic Range,
  • Analog Receiver that Performs in water as shallow as 1 foot
  • Visibility Of More Fish with Autogain Technology

Garmin Fishfinder 140 Reviews

Sample Customer Reviews

Reviews of the Garmin 140 Fishfinder are excellent overall with almost 90% of all owners rating this fishfinder as 4 stars or better out of 5.  61% rate it 5 out of 5 stars.

Positive Customer Reviews

I didn’t expect much for the price I paid, but was pleasantly surprised. The screen is very easy to read, and the automatic features actually work without being fine tuned. Far and away the nicest feature about this unit is the dual beam transducer.
— S.W.

The Garmin 140 is well made; solid case and transducer/battery connector, the membrane buttons have a nice feel to them and the mounts for transducer and screen are good. You can read the screen easily in full sunlight. I’ve had it on the water about 6 times already and had good luck with it.
— B.B.

Very good value for money. Great entry level unit. Does all I need.
— J.S.

Garmin Fishfinder 140

  • Full-Featured Sonar With 4.7-Inch, 128 X 240 B&W Fstn Display
  • Ultrascroll High Rep Rate Sonar
  • High-Dynamic Range
  • Analog Receiver Performs In Water As Little As 1 Ft Deep


We hope this Garmin 140 portable fishfinder review has helped you make a decision, one way or the other. If you do decide to get the Garmin 140, please share your own review below.

4.6/5 - (21 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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