Get Better Fishing Results With The Best Fish Finders On The Market

I have been fishing all of my life. My mom says that I was catching fish before I was born. I am not a professional but I love to fish. Never in my wildest dreams did I imagine some day I would be writing about the best fish finders.

Technology has changed the way we fish. From the top fishing rods and reels, trolling motors, types of line, and trusting the locals to find the best fishing spot, the sport has came a long way. Nothing makes this more obvious than today’s top rated fish finders.

There are many different fish finders with different features. This can sometimes make it a daunting task to choose the best fish finders. So I decided to do some research and try to help you choose the best fish locator for the money for your fishing needs.

Defining The Best Fish Finder

Everybody will have a different definition of the best fish finders. Some will equate it to best bang for your buck. Others will equate it to quality and range. Yet others will simply mean the best for the type of fishing they do like deep sea fishing, lake fishing, river fishing, or ice fishing.

So I am not going to try to convince you which one is the best quality or best bang for your buck. Instead I am going to show you fish finders in different price ranges and let you decide which one is the best fish finder for you. I do have 3 recommendations but you are the one that has to decide if the fish finder is the right type for your fishing adventures.

If you need help deciding which fish finder would be best for you, I suggest you read our Fish Finder Buyers Guide.

In this article you will find a quick comparison chart of the best fish finders, and then below you will find product listings for each weed eater pulled from Amazon’s product database for you to compare.

But before we go onto the list, here is a helpful video on how to buy a fish finder by West Marine.

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Top Picks For The Best Fish Finder

Editor's Choice Humminbird Helix 10 Review And Best Price Comparison

Humminbird Helix 10 Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Humminbird ...

8.5
2 Simrad Go7 XSE Review And Best Price Comparison

Simrad Go7 XSE Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Simrad Go7 ...

8.8
Best seller 3 Lowrance Hook 7x Review And Best Price Comparison

Lowrance Hook 7x Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Lowrance ...

8.3
4 Garmin Striker 7SV Review And Best Price Comparison

Garmin Striker 7SV Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Garmin ...

7.8
5 Lowrance Hook 5 Review And Best Price Comparison

Lowrance Hook 5 Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Lowrance ...

7.8
Best value 6 Humminbird Helix 5 Review And Best Price Comparison

Humminbird Helix 5 Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Humminbird ...

8.8
Best price 7 Raymarine Dragonfly 4DV Review And Best Price Comparison

Raymarine Dragonfly 4DV Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Raymarine ...

7
8 Lowrance Hook-3x Review And Best Price Comparison

Lowrance Hook-3x Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Lowrance ...

5.3
9 Deeper Smart Sonar Pro+ Review And Best Price Comparison

Deeper Smart Sonar Pro+ Review And Best Price Comparison

Are YOU Tired Of Coming Home Empty Handed? DISCOVER How YOU Can Catch Fish Like The Pros After Reading This Deeper ...

6.5

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How We Determine What Is Best

Why You Should Trust Us When Searching For The Best Fish Finder

We spent over 40 hours researching and writing this list of the best fish finders so you wouldn’t have to spend your time doing the research. We consulted with the top experts in the industry and coupled that with our own personal experience to bring you this list.  We do not accept free products or incentives when we review products in order to keep our opinions unbiased and helpful to our readers.

In making this list of fish finders we kept 3 things in mind: Quality, affordability, and customer satisfaction.

Fish Finder Quality

Best Fish FindersAs an avid fisherman myself the last thing I want to do is cause you to have a bad fishing trip because of a review we gave. So when I decided to make this list of fish finders, quality was the number 1 consideration. My desire is that you catch more fish.

That is why you do not see off brand knock offs on this list. You only see the top names in the fishing industry.

Fish Finder Affordability

Although our list of finders has units with price ranges from $100.00 to $1,000.00 these are not the highest priced finders by any way shape or form. Some of the most expensive finders can run in the multiple thousand of dollars.

Fish Finder Customer Satisfaction

We spent the time reading all the customer reviews left on these top rated  finders to ensure that any fish locator and depth finder we recommend is well liked by real anglers. Every fish sonar we recommend was rated with 4 stars or better at the time of this writing.

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Best Fish Finders 2018 – Editors Choice Award

Here are three fish finders that we feel are the best of the best overall.

8.5/10 Read review
85 %
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Set Alert for Product: Humminbird 409970-1 HELIX 10 DI GPS Fishfinder - $1,229.34
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Price history for Humminbird 409970-1 HELIX 10 DI GPS Fishfinder
Latest updates:
  • $1,229.34 - June 18, 2018
  • $2,318.99 - June 15, 2018
  • $1,229.34 - June 2, 2018
  • $1,224.74 - May 31, 2018
  • $1,244.38 - May 29, 2018
  • $1,084.72 - May 28, 2018
  • $1,089.98 - May 27, 2018
  • $981.96 - May 26, 2018
Since: April 16, 2018
  • Highest Price: $2,318.99 - May 22, 2018
  • Lowest Price: $981.96 - May 26, 2018
Last Amazon price update was: June 18, 2018 2:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Humminbird 409970-1 HELIX 10 DI GPS Fishfinder

Humminbird's Helix 10 CHIRP MEGA DI Sonar/GPS G2N Combo delivers crisp images, excellent coverage and an internal GPS so you can spend less time guessing and more time fishing productive spots.
The Humminbird HELIX 10 DI GPS Fish finder is a top notch unit boasting of some great features.

The 10″ screen size makes it much easier to view its split screen. It has easy to use controls that enable you to spend more time fishing and less time setting up or changing functions.

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Last update was in: June 18, 2018 6:59 pm

$1,229.34

Best Fish Finder For Small Boat

8.8/10 Read review
88 %
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Set Alert for Product: SIMRAD 000-12672-001 SIMRAD GO7 XSE 7 PLOTTER WITH 83/200/455/800 TRANSDUCER - $521.09
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Price history for SIMRAD 000-12672-001 SIMRAD GO7 XSE 7 PLOTTER WITH 83/200/455/800 TRANSDUCER
Latest updates:
  • $521.09 - June 8, 2018
  • $584.99 - May 31, 2018
  • $521.09 - April 19, 2018
Since: April 19, 2018
  • Highest Price: $584.99 - May 31, 2018
  • Lowest Price: $521.09 - April 19, 2018
Last Amazon price update was: June 18, 2018 6:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Simrad GO7 XSE Chartplotter/Fishfinder w/TotalScan Transom Mount Transducer

Amp up your chartplotting, fish finding and your wireless connectivity with Simrad's GO7 XSR TotalScan Sonar/GPS Combo. Not only is the 7" widescreen display enhanced with touch-screen controls that remind you of your cellphone's interface, its bright LED is easy to see in bright-light conditions The Simrad G07 XSE is perfect for small sport boats, day boats, and fishing boats. It's brightly lit split screen touch screen displays its charts, internal GPS tracking, and fish finding screens in any type of light. Couple that with its Broadband Sounder and StructureScan HD DownScan and SideScan imaging sonars and you will find fish like a pro even in the deep waters.

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Last update was in: June 18, 2018 6:59 pm

Top Fish Finder 2018

8.3/10 Read review
83 %
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Set Alert for Product: Lowrance 000-14022-001 HOOK-2 7X Fishfinder with GPS Plotter, Tripleshot Transducer, CHIRP, SideScan Imaging, DownScan Imaging & 7" Display - $399.00
Last Amazon price update was: June 17, 2018 8:00 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Lowrance Hook-7X Sonar Mid/High/Downscan Fishfinder

The world's easiest fishfinder, HOOK2 7x TripleShot offers simple menus, easy access to key functions and Autotuning sonar. Powered by proven Lowrance performance, HOOK2 7x features TripleShot 3-in-1 sonar with wide-angle, High CHIRP coverage, SideScan and DownScan Imaging, plus a simple and accurate GPS plotter. The Lowrance HOOK-7 is a fish finder that offers the right features at the right value without compromising the quality fisherman have come to expect from a company like Lowrance. Combining Chirp technology with advanced dual beam signal processing gives anglers a quality fish finder that is easy to use. Its 7 inch display size makes it easy to see.

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Last update was in: June 18, 2018 6:59 pm

Best Fish Finder GPS Combos Under $500

There are some great fish finder GPS combos for the avid fishing enthusiast under $500.00. Here are some great ones ranging from $200.00 to $500.00

7.8/10 Read review
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Set Alert for Product: Garmin 010-01809-00 Striker 7SV with transducer - $469.99
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Price history for Garmin 010-01809-00 Striker 7SV with transducer
Latest updates:
  • $469.99 - June 18, 2018
  • $529.99 - June 15, 2018
  • $474.99 - June 15, 2018
  • $469.99 - May 28, 2018
  • $474.99 - May 24, 2018
  • $484.99 - May 23, 2018
  • $469.99 - May 15, 2018
  • $459.99 - May 8, 2018
Since: April 16, 2018
  • Highest Price: $529.99 - May 5, 2018
  • Lowest Price: $459.99 - April 16, 2018
Last Amazon price update was: June 18, 2018 6:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Garmin 010-01809-00 Striker 7SV with transducer

Featuring a crystal-clear transducer with both CHIRP ClearVü™ and CHIRP SideVü™ sonar capabilities, Garmin's Striker Plus 7SV Sonar/GPS Combo delivers an incredible view of the terrain, structure and activity below and to the side of your boat, allowing you to put your lure in front of more fish You will find fish better than ever with the Garmin's fish finder, the Striker 7SV. Log your hot spots and plot your course with Striker's high sensitivity GPS mapping. Adjust the depth you are probing with their smooth scaling depth finder software technology. See the fish clearly with the Garmin Echomap Chirp dual beam sonar.

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Last update was in: June 18, 2018 6:59 pm
7.8/10 Read review
78 %
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Set Alert for Product: "Lowrance 000-12653-001 HOOK-5x Mid/High/Downscan-(12653) HOOK-5x Fishfinder" - $299.00
Last Amazon price update was: June 18, 2018 2:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Lowrance 000-12656-002 Navico Hook 5 with Card & Cover Mid/High Down Scan,

Featuring a brilliant 5-inch color display, the HOOK-5x is powered by high performance sonar with enhanced sonar sensitivity, excellent target separation and superior noise rejection, making it easier to see baitfish and gamefish targets. The HOOK-5x combines the benefits of CHIRP Sonar and DownScan Imagin technology to give you a clear and complete view of all the fish and structures below your boat. Its high performance dual beam scan sonar gives you excellent target separation enabling you to see clearly the baitfish and gamefish targets you are seeking with its fantastic split screen display.

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Last update was in: June 18, 2018 6:59 pm
8.8/10 Read review
88 %
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Set Alert for Product: Humminbird 410210-1 HELIX 5 CHIRP GPS G2 Fish finder - $289.90
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Price history for Humminbird 410210-1 HELIX 5 CHIRP GPS G2 Fish finder
Latest updates:
  • $289.90 - June 12, 2018
  • $295.36 - June 12, 2018
  • $295.35 - June 11, 2018
  • $295.36 - June 11, 2018
  • $295.35 - June 9, 2018
  • $293.41 - June 9, 2018
  • $266.96 - June 8, 2018
  • $293.41 - June 8, 2018
Since: April 10, 2018
  • Highest Price: $295.36 - June 11, 2018
  • Lowest Price: $266.96 - June 6, 2018
Last Amazon price update was: June 18, 2018 6:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Humminbird 410210-1 HELIX 5 CHIRP GPS G2 Fish finder

Improved user-friendly interface and added features like CHIRP sonar make the Humminbird Helix 5 Sonar G2 Sonar/GPS an efficient fish-finding tool. When Hummingbird first released the Helix 5 it sent shockwaves through the fish finder industry because it included side and down imaging in a fish finder that was under $500.00. Now they are continuing to rock the boat by including it in Humminbird's  fish finder, the Helix 5 G2 for under $300.00.

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Last update was in: June 18, 2018 6:59 pm

$289.90 $299.99

7.5/10 Read review
75 %
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Set Alert for Product: Garmin STRIKER 5cv Fishfinder w/ ClearVu Sonar Transducer 010-01807-00 BRAND NEW - $269.99
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Price history for Garmin STRIKER 5cv Fishfinder w/ ClearVu Sonar Transducer 010-01807-00 BRAND NEW
Latest updates:
  • $269.99 - May 31, 2018
  • $240.99 - May 17, 2018
  • $244.99 - May 10, 2018
  • $258.99 - April 26, 2018
  • $259.99 - April 19, 2018
Since: April 19, 2018
  • Highest Price: $269.99 - May 31, 2018
  • Lowest Price: $240.99 - May 17, 2018
Last Amazon price update was: June 18, 2018 6:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Garmin 010-01807-00 Garmin STRIKER 5cv with transducer

Finding fish is easier than ever with STRIKER 5cv fishfinder. Mark and return to your hot spots, boat ramps and docks. You also can share your favorite waypoints and routes with other STRIKER and echoMAP™ combos. Not to be outdone by Hummingbird, Garmin has put out a great entry level fish finder to compete. The Striker 5cv (clear view) is a strong competitor. With 800 pixels in a 5" screen size, you will be able to distinguish where the fish are.

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Last update was in: June 18, 2018 6:59 pm

Best Fish Finders Under $200

Maybe you don’t hit the water every weekend but you would like to have the advantage of having a fish finder when you do. These inexpensive fish finders might just be the best fish finders for you. You still get some of the advantages of the pricier models but don’t pay for all the bells and whistles.

70 %
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Set Alert for Product: RAYMARINE DRAGONFLY 4DV CHIRP DOWNVISION SONAR ONLY T/M - $100.75
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Price history for RAYMARINE DRAGONFLY 4DV CHIRP DOWNVISION SONAR ONLY T/M
Latest updates:
  • $100.75 - June 15, 2018
  • $197.99 - June 8, 2018
  • $182.99 - May 31, 2018
  • $100.77 - May 17, 2018
  • $109.99 - May 3, 2018
  • $100.77 - April 26, 2018
  • $109.99 - April 19, 2018
Since: April 19, 2018
  • Highest Price: $197.99 - June 8, 2018
  • Lowest Price: $100.75 - June 15, 2018
Last Amazon price update was: June 18, 2018 6:59 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Raymarine Dragonfly-4DV CHIRP DownVision Sonar

Change your underwater view and catch more fish with the Dragonfly wide-spectrum CHIRP DownVision™ technology. Easily identify fish and underwater objects with photo-like sonar images. Raymarine offers quite a few fish finders with the most affordable being the Dragonfly 4DV. This is a basic fish finder with few bells and whistles using just standard sonar and lcd display, but if you are just a hobbyist fisherman then this might be just the fish finder you are looking for with its extremely affordable price point.

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Last update was in: June 18, 2018 6:59 pm
5.3/10 Read review
53 %
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Set Alert for Product: Lowrance® Hook-3X DSI Sonar - $79.88
Last Amazon price update was: June 18, 2018 6:59 pm
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Lowrance 000-12636-001 Hook-3X DSI Sonar, W/455/800 XDCR

The Lowrance® HOOK-3x is a fishfinder that offers proven features at a great value without compromising the quality anglers have come to expect from Lowrance.Featuring a LED backlit 3-inch color display, the HOOK-3x is powered by high-performance Broadband sonar with Advanced Signal Processing (ASP), excellent target separation and superior noise rejection, making it easier to see baitfish and gamefish targets. It features a built-in water temperature sensor and supports 83 and 200kHz frequencies, allowing you to select the frequency that works best with current water conditions. Lowrance fish finders like the Hook 3X sonar fish finder is the perfect fish finder for the hobbyist or casual angler. It is the least expensive traditional fish finder made by a quality manufacturer.If you are looking for a cheap fish finder this may be the one for you!

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Last update was in: June 18, 2018 6:59 pm

Best Portable Bobber Style Fish Finder

​Maybe you are a river fishing enthusiast or maybe you like to fish using a kayak or inflatable rubber boat. This portable bobber style fish finder will help you find the big ones that are lurking beneath the surface.

6.5/10 Read review
65 %
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Set Alert for Product: Deeper Smart Sonar Pro+ Wifi+ Gps - $202.79
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Price history for Deeper Smart Sonar Pro+ Wifi+ Gps
Latest updates:
  • $202.79 - May 17, 2018
  • $219.00 - May 10, 2018
  • $202.79 - May 3, 2018
  • $219.00 - April 19, 2018
Since: April 19, 2018
  • Highest Price: $219.00 - April 19, 2018
  • Lowest Price: $202.79 - May 3, 2018
Last Amazon price update was: June 17, 2018 8:00 pm
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
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Deeper Smart Sonar PRO Series - Wi-Fi Connected Wireless, Castable, Portable Smart...

Deeper Smart Sonar PRO+Fish Finder is especially designed for amateur and professional fisherman alike, to find out location of fish, depth, water temperature, bottom contour of water and many more. It can work on smartphones and tablets. Deeper Smart Sonar has truly taken the portable fish finder market by storm with their bobber style fish finder Pro+. This unique fish finder is able to be used like a bobber in shallower water and cast out and retrieved with a fishing rod to help you find where the fish are hiding using standard sonar sound waves. It connects to your mobile phone and has an IOS and Android app. It is perfect for fishing from the bank or kayak fishing.

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Last update was in: June 18, 2018 6:59 pm

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How To Use A Fish Finder

When you purchase your fish finder you will be learning how to read sonar based data. This is different than what you would see if you panned an underwater camera down under your boat. The data is time based, not distance based.

So when you use your new fish finder you will need to remember that what you are seeing is not spacial movement but time scans.

You also will find that you get better images and data if you keep moving rather than stay stationary. The reason for this is that with movement you give your fish finder the ability to get different angles on any fish or object below you.

Tips For Reading The Depth Finder View Screen

Not all fish finders have icons that tell you what is a fish and what is a tree stump. Not always is it easy to tell right off the bat. Here are a few tips to help you read your view screen.

  • A thick line at the bottom shows a soft bottom where a thin line shows a hard or rocky bottom.
  • The right to left movement of your screen is not panning right to left. It is the image based on time.
  • Adjust your sensitivity controls so that objects are clear and distinct from the background.
  • Mount your transducer where it gets a steady flow of water across it rather than near turbulence. This will greatly improve the image you see on your view screen.

Here is a helpful video on how to read your new fish finder with sonar technology.

https://www.youtube.com/watch?v=CkGg5rnK4Cc

Fish Finder Buying Guide

Image of two people fishing on a lake

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​Quick Tips On Selecting The Best Fish Finder

  1. Don’t out cheap yourself when purchasing a fish finder. Make sure you buy the type of fish finder that will work for you in the long run. Many anglers who have not taken the time to read a fish finder buyers guide regret getting too small of a display or one that is not very powerful. They limited themselves in their fishing experience to save a few bucks.
  2. Consider fish finders that can be upgraded. If money is an issue, then pay attention whether or not the unit you are considering can be upgraded. If so, then maybe you can buy an upgradeable unit now and upgrade it next year.
  3. Buy what you need in a fish finder. As we all know, money doesn’t grow on trees. As much as the top notch features are tempting, if you are not going to use them, then you have spent more than you need. Ask yourself what type of fishing will you do? If you are sticking to shallow lakes or streams, then maybe you don’t need the most powerful fish finder out there.

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Understanding The Functions Of A Fish Finder

​There are two main components of a fish finder. They are the display unit and the transducer. The transducer is the component that produces the sonar that is read by the display unit. Here are some important aspects of both of these units.

The Fish Finder Display Unit

Display units come in all types of sizes and shapes. Some are small enough to mount on your rod while others really need to be mounted on the dash of your fishing boat.

The display unit is the part of the system that controls all the aspects of the fish finder system. You set the sensitivity and type of signal produced from the transponder. You don’t want to skimp on the display unit. You can have the most sensitive sonar in the world but if it is displayed on a lousy display it won’t help you find fish.

Fish Finder Screen Resolution

Resolution is the amount of pixels that are used in displaying the image. A pixel is a dot of image information. If you have 800 pixels of resolution then it takes 800 dots to go from the top to the bottom of the image in a straigh line. So 800×800 resolution is 800 dots across by 800 dots down. The larger the display resolution the more defined the screen image is going to be. Do not go below 240 pixels top to bottom. The image will be too fuzzy to be of any use to you and even then it is pretty fuzzy.

Fish Finder Screen Size

​Bigger does not always make better. Smaller screen sizes are better for small boats, kayaks, and rubber flotation devices and larger ones are better for boats with cockpits. However smaller size fish finders do have their drawbacks especially with multi-screen mode or when being viewed from a distance.

Fish Finder Multi-Screen Functionality​

​Some fish finders come with the option to view multiple screens at the same time. Some units will show you different views of the bottom and others will show you a map and your sonar at the same time. This functionality works best on units with larger screens.

Fish Finder Screen Colors​

​Modern fish finders have moved away from black and white screens. Color allows you to be able to define the image better. In this case, the more bits of color, the more your image will be defined. They can range from 16 bit color up to millions of shades of color and beyond.

​Additional Features Of Fish Finders

The best fish finders will not just show you the depth of the bottom and what is below. They will show you water temperature, speed you are traveling, GPS position and more. Some even come with alarms to notify you when it finds fish!

The Fish Finder Transducer

Picture of a fish finder mounted on the transcomThe transducer is the unit that produces the sonar signal. It sends a ping into the water and then receives the echo back and translates that into data that the display unit can understand. Most transducers are mounted on the outside of the boat although there are a few that will operate through the boat’s hull.

Here are some key features of transducers.

​Fish Finder Sonar Frequencies

​The frequency is the number of times the transducer emits a sound wave per second. These are measured in KiloHertz. Most transducers will come with either 50, 83, 192 or 200 kHz frequencies. Higher frequencies, like 192 and 200 kHz work best in shallower water, while the low 50 kHz transducers work best for use in deep water. High frequency sonar however, uses more battery power.

Many fish finders have the ability to use more than one frequency at a time making the sonar results better.​ There are 4 major types of frequency types used in fish finders.

  1. Single Frequency. This is in all basic fish finders. It is best used in portable and shallow water situations.
  2. Dual Frequency. The transducer uses 2 set frequencies to gather it’s sonar data. This gives you better clarity.
  3. Multiple Frequency. This is where you have more control over what frequencies are used with variable settings.
  4. Chirp Technology. (Compressed High Intensity Radar Pulse) This technology emits a variety of frequencies simultaneously giving you the most complete sonar image available today.

Fish Finder Transducer Power

The transducer’s power has a direct impact on your fish finder’s clarity and depth. The power of the transducer is measured in watts. The higher the watts, the more powerful it is.

As a practical matter, the deeper you fish, the more power you want but if you are mainly a shallow water angler, then you can get away with a lower wattage transducer. As a rule of thumb, ​at 50 kHz, for every 100 watts of power, your finder/transducer can show readings up to 400 feet.

At 200 kHz, for every 100 watts of power, your finder/transducer can show readings up to 100 feet.Most mid-range finders available are dual-frequency, so you can see readings from both frequencies(usually 50/200 or 85/200) in a split screen fashion.

Cone Angle​

The cone angle is the dimensions of the beam as it is sent from your boat into the water. It looks like an upside down ice cream cone. The wider the degree of the cone angle, the larger of an area is scanned below you. A 50 degree cone angle will theoretically cover more area than a 15 degree cone angle. However you need to remember that the larger the cone angle the less sensitive your fish finder become at deeper depths.

Most units start at 15 – 20 degree cone angles. This is usually a good starting point for your fish finder.​ Higher quality units come with more than one cone so you can use one for down sonar and one for side sonar.

What To Do After Reading Our Fish Finder Buyers Guide

Now that you have read our fish finder buyers guide and have a basic understanding of fish finders here are some fish finder articles and reviews for you to read. We have done reviews on…..

  • Lowrance Fish Finders
  • Garmin Fish Finders
  • Humminbird Fish Finders
  • Simrad Fish Finders
  • Raymarine Fish Finders
  • Deeper Smart Sonar Fish Finders

Just scroll through the list of articles below.

Fish Finder Reviews And Articles

Final Thoughts on Fish Finder Technology

I still remember the days when I had to know how to read the water in order to find fish. However I also love the new technology like chirp technology that makes it so much easier to find the fish and where the fish are biting.

Let me know if you found that this best fish finders list has helped you chose the top fish finder for you. Let me know if there is anything I can add that will help you make your decision on what is the gps fish finder for the money for you. I will try to update the content as time and technology changes. Feel free to share some fishing tips as well.

Duke Taber is the owner of 3 successful websites and is now taking his skill as a webmaster and using it to help non-profit organizations and leaders around the world.

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