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Last Updated on August 24, 2021 by Alfred Jenkins

Helix 7 CHIRP MSI GPS G3 9.5

Helix 7 CHIRP MSI GPS G3 Our Best Pick

  • HumminBird Helix 7 CHIRP Mega-Side Imaging with GPS
Check Price
Garmin Striker Plus 49.2

Garmin Striker Plus 4Best for Beginners

  • Garmin Striker Plus 4 with Dual-Beam Transducer and GPS
Check Price
Deeper PRO+ Smart Sonar8.8

Deeper PRO+ Smart SonarBest Portable Fish Finder

  • Deeper PRO+ Wireless Fish finder with GPS
Check Price
Lowrance Elite-9 Ti2 with Active Imaging9.1

Lowrance Elite-9 Ti2 with Active ImagingBest Fish Finder for Professionals

  • Lowrance Elite Ti2 with Active Imaging, 3-in-1 Transducer and Preloaded Maps
Check Price

Imagine how satisfying it would be to catch fish whenever you throw your fishing bait or lure in the water. It seems dope, isn’t it? If you love to go on fishing in your spare time and wish to catch more fish in less time, but you have no idea where to start. Then look no more, sit back and relax. You are at the perfectly right fishing blog that has covered each and everything for you.

If you still have the ambiguity in your mind that, “What are the best fish finders of 2021?” then this article is a must-read for you, fellow angler! At the end of this researched article, YOU yourself will be able to choose the best fish finder to boost your fishing skills.

Best Fish Finder 2021

Before buying anything through the internet, we usually search the product online and compare it with similar products. Why not we should do it? We are investing our money into buying something and it is a rightful act. The ultimate goal is to select the product that best matches our needs, is budget-friendly, and a quality product.

So, we ended up researching the list of best fish finders. We tested different widely used and latest depth finders for boats and reviewed them. Furthermore, we took unbiased opinions of professional and amateur fishers about them for a detailed review.

Finally, we were able to make a list of the best fish finders based on various factors . Some of the important features are screen size, Sonar technology, depth capability, networking, connectivity and installation. These are the main features that a fisher should particularly look for while finding the best fish finder.

Welcome to the detailed reviews and buyer guide of the best fish finder. Let’s begin the list.

Best Fish Finders in a Comparison Table

  • Screen Size: 7-Inch
  • Imaging: Mega SideScan Imaging
  • Transducer: Low Q Chirp transducer
  • Bluetooth: Yes
  • MicroSD Slot: Yes
  • AutoChart Live: Yes
  • GPS: Built-in GPS
Garmin Striker Plus 4 with Dual-Beam transducer
  • Screen Size: 4-Inch
  • Transducer: Dual-Beam
  • Sonar: Traditional Chirp
  • Integrated GPS: Yes
  • Quickdraw Contours: Yes
Deeper PRO+ Smart Sonar
  • Screen Size: 2.55 Inch
  • Sonar Type: Dual beam Frequency
  • Sonar Scan rate: 15 scans per second
  • Casting Range: 330 ft
  • Depth Range: Max 260ft/Min 2ft
  • Connectivity: No internet needed
  • Compatibility: IOS/Android
  • GPS: Built-in GPS
Lowrance HOOK Reveal 5x SplitShot
  • Screen Size: 5-Inch
  • Transducer: Splitshot
  • Sonar: High CHIRP sonar
  • Imaging: DownScan Imaging
  • Aututuning Sonar: Yes
  • GPS Plotter: Yes
  • Display: Sunlight-readable SolarMAX display
Garmin Striker 7SV with transducer
  • Screen Size: 7-Inch
  • CHIRP Sonar: Yes
  • Imaging: ClearVu & SideVu
  • Contours Mapping: Built-in quickdraw
  • Built-in Wi-Fi: Yes
  • GPS: Built-in
Lowrance Elite-9 Ti2 with Active Imaging 3-in-1
  • Screen Size: 9-Inch
  • Display: Touchscreen
  • Transducer: Active Imaging 3-in-1
  • Imaging: CHIRP, SideScan & DownScan
  • Networking: Wireless
  • Connectivity: Smartphone
Humminbird HELIX 7 CHIRP MDI GPS G3 
  • Screen Size: 7-Inch
  • Imaging: Mega Downscan Imaging
  • Transducer : Low Q Chirp transducer
  • Chirp: Dual Spectrum
  • MicroSD Slot: Yes
  • AutoChart Live: Yes
  • GPS: Built-in GPS
  • Screen Size: 9-Inch
  • Display: Touchscreen with keyed assist
  • Transducer: GT54 transducer 
  • Sonar: CHIRP traditional sonar
  • Imaging: ClearVu & SideVu
  • Panoptix Sonar: Yes
  • Wireless Connectivity: Yes
  • Screen Size: 7-Inch
  • Display: Touchscreen with keyed assist
  • Transducer: GT24 transducer
  • Sonar: CHIRP traditional sonar
  • Imaging: ClearVu
  • Panoptix Sonar: Yes
  • Preloaded Charts: Yes
  • Quickdraw Contours: Yes
Lowrance HDS-7 Live with Active Imaging 3-in-1
  • Screen Size: 7-Inch
  • Display: Multi-Touchscreens
  • Processor: Dual-Core
  • Transducer: Active Imaging 3-in-1
  • Imaging: CHIRP, SideScan & DownScan sonar
  • Wireless and Bluetooth connectivity: Yes

1- Humminbird HELIX 7 CHIRP MEGA SI GPS G3 (Best Choice)

Humminbird has been making depth finders for boats since 1971, and the Helix 7 Chirp is no exception. While it will cost you a considerable amount of money compared to other brands, it offers great performance, and accuracy.



The Helix 7 allows you to see the underwater world on this affordable 7-inch unit with crystal-clear viewing and clarity. You can easily see up to 125 feet in-depth on either side of your boat.

The high-definition TFT display makes its screen brighter and super easy for you to access it, whether you’re fishing on a rainy or a sunny day.

Perfect Side Imaging

The Mega Side Imaging help you see underwater with up to 3X more output than the standard Side Imaging sonar. The Dual Spectrum CHIRP ensures to multiply your fishing trip’s enjoyment and productivity. It offers two ways to search underwater; wide mode for maximum coverage and narrow mode for maximum detail.

Detailed Underwater Information

Just with the push of a button, you can control the way your sonar looks on the screen; that’s where SwitchFire sonar comes in very handy. With its two display modes, you can increase your accuracy by adding or removing details, finding out water depth, temperature, and turbulence, even watch lure presentations.


The Helix 7 G3N is an extremely desirable option to have in your boat with its affordable and budget price. It offers MEGA Imaging and a low Q CHIRP at a very reasonable price. Both of these features are significant components of a depth finder. With its portability and performance, it does count as the best kayak Fish Finder as well.

2-Garmin Striker Plus 4

Garmin Striker Plus 4 tops the list for a reason. This model is ideal for those who are relatively new to fishing. It’s one of the best portable fish finders for small boats or kayaks, without a doubt.

Garmin Striker Plus 4
Garmin Striker Plus 4

Although it’s one of the cheap fish finders that’s an affordable option for a lot of novice anglers, it still competes with other GPS fish finders. The great performance of the Striker Plus 4 make it the top contender on our list of best fish finders.


Garmin striker plus 4 is a vertically oriented 4-inch model. Although the screen size looks small, we know that the size of something doesn’t always correctly reflect its value. The bright and clear display let you easily read or see the interface, whether you’re under direct sunlight or rain. You can easily set up and access this model while fishing as its user-interface is straightforward and easy to install.

Powerful 2D Transducer

The transducer is an essential component that some fishers even considered it the heart of a depth finder for boat. Garmin Striker Plus 4 is equipped with a dual-beam transducer that’s pretty good at locating and depth measurements. With features like Chirp traditional sonar (2D Sonar), a dual-beam transducer, and a built-in GPS, you will get a crystal-clear view of what is below your boat with high-definition images. The remarkable spotting by Striker Plus 4 also makes sure that you get a noticeable separation between multiple targets underwater.


Garmin Striker Plus 4 boat depth finder makes fishing more fun and enjoyable for you, and it’s developed to work in any environment. There are a lot of fish finders for kayaks but the the ability to produce great underwater results in low price makes it one of the best kayak depth finders. If you are new to fishing or have a slightly low fixed budget, it’s worth trying and the best portable fish finder on our list.

3-Deeper PRO+ Smart Sonar

Deeper PRO+ is a best-selling portable depth finder designed to deliver dynamic on-water performance with superior stability, durability, comfort, and ease.

Deeper PRO+ Smart Sonar
Deeper PRO+ Smart Sonar

Providing in-depth and extensive scans, the Deeper PRO+ wireless fish finder can be exceptionally useful for you. It’s a prominent addition to an angler’s fishing gear with great accuracy at a low cost.


Deeper PRO+ comes in a small 2.5-inch unit with a very bright display and excellent capability of zooming underwater. Its 3.5 ounces weight makes it easy-to-carry and a castable fish finder that can be used in any fishing environment, from shore to canopy and kayak fishing. The portable size and verstalie design also make it useful as a ice fishing fish finder.

Deep Scanning

The PRO+ has a casting range of 330ft, and with the help of powerful dual beams included, you can scan down up to 260 feet in-depth with clear visibility and accuracy.

Dual-Beam Transducer

Your fishing tour’s productivity can be noticeably increased with the dual beams included; by using the wide scanning beam, you can cover broad areas and then switch to the narrow beam for detailed scanning and results. The transducer sends 15 scans per second underwater and has a great target separation of just 1 “.

WiFi Connectivity

Deeper PRO+ can be synced with iOS/Android devices through WiFi hotspot, so no Internet is needed for connectivity. The connectivity of your PRO+ and smartphone through WiFi rather than Bluetooth gives you an edge with high-speed data transfer and robust integration.

Integrated GPS

With built-in GPS, this enables you to create bathymetric maps from the coast. The bathymetric management platform empowers you to save, share, or review the maps you’ve made.


Whether you plan fishing from shore, small boat, or ice, if you’re looking for a handheld fish finder that best meets your expectations and is also a best budget fish finder, then Deeper PRO+ is explicitly designed for fishermen like you.

4-Lowrance HOOK Reveal 5x

The HOOK Reveal is an ideal candidate for the best depth finder, always ready for all water environments, whether you’re lake fishing, inshore or offshore fishing. The breakthrough design allows anglers to enjoy the most out of their next fishing and boating experience.


Lowrance HOOK Reveal 5x
Lowrance HOOK Reveal 5x

This medium-sized unit is an excellent match for you, whether you are a beginner or an expert. The SolarMAX display provides you crisp and clear views of underwater with exceptional clarity, no matter what the conditions are – even in direct sunlight.

SplitShot transducer

The SplitShot transducer is perfect for anglers who want the best views below the boat. The DownScan imaging by the SplitShot transducer helps increase your fish finding capability with wide-angle CHIRP sonar and high-resolution images.

Auto-tuning Sonar

The auto-tuning sonar feature lets you spend more time fishing and less time redoing your sonar settings. This is very helpful as your fishing conditions change, and it ensures that you get the best underwater images every time by automatically adjusting settings.

Fish Reveal

Lowrance has equipped FishReveal in this latest model that makes it easier for you to find and identify fish. FishReveal works very efficiently because it combines the target separation feature of CHIRP sonar and the high-resolution provided by DownScan Imaging; thus, you see fish light up on the screen through FishReveal.


Lowrance’s HOOK Reveal is a fully-packed and redesigned fishing device that’s built for every conceivable fishing expedition. With a simple user interface and easy installation, this incredible model’s price is relatively fair and worthy to maximize the productivity of your fishing experiences.

5-Garmin Striker Plus 7SV

Garmin Striker Plus 7sv is an offshore-capable device for chasing down shoals of fish. The performance and affordability of Striker 7sv allow you a comfortable all-day fishing experience while using advanced kick-up technology for exploring waters.

Garmin Striker Plus 7SV
Garmin Striker Plus 7SV


The Brighter and sunlight-readable 7-inch display is specially designed to handle your fishing from small ponds to the seashores, whether it’s a sunshiny or rainy day.

ClearVu/SideVu Scanners

The Striker Plus 7sv is an affordable fish finder equipped with CHIRP traditional Sonar in addition with ClearVu and SideVu scanning Sonars. The 3-1 Scanning Sonars ensure the comfortable use of ease and leisure in fishing trips, so that you can hunt more fish with the crystal clear underwater images.

CHIRP traditional Sonar

With the additional help of ClearVu/SideVu scanning sonars, the CHIRP traditional Sonar provides you a photographic and clear underwater view. The excellent target separation with incredible details puts you at the extra edge over fellow anglers and FISH, Of course!!!

Additionally, the most notable feature of this best fish finder is that all this Sonar technology is packed into 1 transducer, which helps you catch more fish and spend less time on your fishing trips.

Built-in Wi-Fi

Striker Plus 7sv features built-in Wi-Fi, so you can connect easily with the other devices of the ActiveCaptain community. Receiving important notifications to your Striker unit directly and keeping your Striker Plus update with essential updates have been made easy for you, thanks to the ActiveCaptain app of Garmin.

ActiveCaptain App

The ActiveCaptain app also strives to keep you connected with fellow anglers and allows you to update your routes and maps in real-time, directly through your Striker Plus 7sv.

6Lowrance Elite-9 Ti2

Whether you’re planning a quick after-work trip or a multi-day voyage, the Lowrance Elite Ti2 is a specially designed wireless fish finder to provide maximum comfort and aid in your next fishing trip with its incredible performance. It’s is a stable, comfortable, and lightweight option with many other angler-friendly features.

Lowrance Elite-9 Ti2
Lowrance Elite-9 Ti2


The Lowrance Elite Ti2 is a grab-and-go fishing beast that owns premium fishing features in a mid-sized unit. It’s equipped with a High-Res touchscreen that makes the display of Elite Ti2 easy to use. Furthermore, the sleek and smooth touchscreen gives you fast and fingertip access to all Elite Ti2 features in no time.

Enhanced Color Palette

One of the best things about this incredible unit is that you can also customize your display with the color palettes of enhanced color and contrast, making it even more comfortable to distinguish fish from the structure, the bottom, and each other.

Active Imaging 3-1 Transducer

The Elite Ti2 provides Active Imaging with a 3-1 transducer that delivers the most superior clarity and the highest resolution images of fish and structure at a more extended range than any other structure imaging technology.


With useful features that make your life easier on the water, like wireless networking, smartphone notifications, and real-time mapping – Elite Ti2 is specifically designed to help you have an easier time finding fish.

7-Humminbird HELIX 7 CHIRP

The HELIX 7 CHIRP MDI is a sturdy fish locator that uses Down Imaging Sonar to provide detailed underwater information to the anglers. It efficiently turns fishing into a fun outdoor activity while doing all of the hard work for you.


The 7-inch ultra-wide and high-definition display gives you sufficient room to view all the necessary fishing insights with various split-screen view options. Helix 7 further features a colored TFT display with a resolution of 800H x 480V that ensures improved underwater imagery with crystal-clear details.

Humminbird HELIX 7 CHIRP
Humminbird HELIX 7 CHIRP

Powerful “Low Q CHIRP Transducer

HELIX 7 CHIRP is powered by Humminbird’s own Low Q CHIRP transducer that provides you comprehensive underwater clarity. The incredible unit can also cover up to 125 feet in depth, letting you explore all the water below your boat with ease.

Dual Spectrum CHIRP

HELIX 7 includes a high-quality Dual Spectrum CHIRP that allows anglers to explore more with two advanced modes. Therefore, you can cover maximum water area with the wide mode, allowing you to target more fish potentially. The narrow mode can significantly cover all the details of a small water area where fish are showing potential activity, increasing your chances of catching more fish.

SwitchFire Sonar

The HELIX 7 is explicitly equipped with SwitchFire Sonar that gives you the control to display returned sonars in your desired way. The two display modes of SwitchFire allows you to add extra or remove unwanted details. As a result, this boat depth finder only displays the essential and fishing related information on the screen while eliminating unnecessary underwater details from the equation.

AutoChart Live

Another key point in this incredible unit is the AutoChart Live feature. It is an excellent extension that empowers you to create detailed maps of your favorite fishing spots with the push of a button in no time.

8-Garmin ECHOMAP UHD 94sv

Generally speaking, the ECHOMAP UHD 94sv remains the best depth finder you can buy at the present time. It has a bright, sunlight-readable 9″ keyed-assist touchscreen that provides an extreme joy to use in your next fishing trip. The easy-to-install design also makes it effective and user-friendly addition to your fishing arsenal likewise.

CHIRP traditional Sonar

Garmin ECHOMAP UHD 94sv
Garmin ECHOMAP UHD 94sv

ECHOMAP Plus 94sv has equipped a GT54 transducer in addition with the CHIRP traditional Sonar. The CHIRP traditional sonar provides you amazingly clear target separation because it puts more energy onto the target fish than the traditional sonar. 

ClearVu/SideVu Scanning

ECHOMAP UHD 94sv further provides you with CHIRP ClearVu (CV) and CHIRP SideVu (SV) scanning sonars. The CV scanning sonar gives you fully detailed images of what’s below your boat. Moreover, the CHIRP SideVu (SV) scanning sonar shows you incredible details of what lies off to both sides of your boat. You can clearly see underwater structures and submerged objects. As a result, your ECHOMAP spots target fish easily within minutes.


Garmin CHIRP traditional sonar and ClearVu and SideVu scanning sonar come as a combined 1 transducer. Therefore, the best thing about this incredible unit is that you’ll get all of this at a very affordable attractive price. With excellent CHIRP sonar and other features, ECHOMAP UHD would work quite well for you for the long run, whether on a small or a regular fishing boat.

9-Garmin ECHOMAP UHD 74cv

Whether you’re a shore-based angler exploring new waters with your fishing kayak or a boat fisher who sees fishing as a diversion from their busy life, the Garmin ECHOMAP UHD provides you ease and world-class authority.


Garmin ECHOMAP UHD 74cv
Garmin ECHOMAP UHD 74cv

The ECHOMAP UHD combines a sunlight-readable touchscreen together with the keyed assist as additional help. The medium size makes it really easy to install and use on your next fishing excursion.

CHIRP traditional Sonar

The ECHOMAP UHD is outfitted with a GT24 transducer together with Garmin CHIRP traditional Sonar. The GT24 transducer with vivid color palettes assures you crystal-clear images of what is below your boat with incredible details and makes it easier than ever to distinguish targets and structure with remarkable accuracy.

Panoptix Sonar

ECHOMAP UHD can take your fishing to the next level because of the Panoptix all-seeing Sonar that allows you to see all around your boat in real-time.

Quick-Release Bail Mount

The ECHOMAP UHD also features a quick-release bail mount that makes it easy to carry and can be removed and reinstalled within a matter of some minutes.


ECHOMAP UHD is also compatible with the force trolling motor that gives you full control of the motor from the screen with few clicks. Creating personalized fishing maps of 1′ contours on-screen within seconds has become possible because of this great and one of the best sonar fish finders. You can share them with other anglers or store them to utilize and increase your next fishing trip’s productivity.

10-Lowrance HDS-7 LIVE

Lowrance HDS LIVE is also one of the traditional Sonar fish finders with a twist of advanced modern technology to make your fishing trips more productive with a smooth and accurate performance. It’s slightly on the pricier end of the budget, but it does all of the hard work for you with minimum effort and definitely worth the price.

SolarMAX Display

The HDS LIVE model features a 7-inch unit that’s big enough to fit in your boat as a standalone fishing gadget. The SolarMAX technology furthermore provides you with a sunlight-readable touchscreen that allows you to see the complete underwater details with various viewing angles.

Lowrance HDS-7 Live
Lowrance HDS-7 LIVE


The CHIRP Sonar with a 3D/HD StructureScan gets you the most transparent underwater view in addition with a comprehensive range of information. It enables you to see the higher resolution imagery around all the sides of your boat that specifically boost your fishing accuracy.

Dual-Channel CHIRP SONAR

HDS LIVE comes with the addition of the latest Dual-Channel CHIRP SONAR that provides anglers clearly-defined fish arches and less clutter on your screen. The two simultaneously working CHIRP channels assure you never miss your target by providing all the essential details on display.

Dual-Core Processor

The HDS LIVE utilizes the latest dual-core processor while operating the fish finder, assuring you faster processing speeds and quicker response times while displaying the most recent data on the screen with no lags and delays.


The COLOR SONAR also provides anglers with a dynamic color range that results in high visibility on the screen. A comprehensive range of colors allows you to explore the water with detailed scanning features, such as SideScan and DownScan Imaging and StructureScan with HD/3D quality.

What to consider when you’re buying the best fish finder in 2021.

Many fish finders are currently available, and various new & innovative models are coming into the markets each day. These models are different from each other based on their features, functionality, durability, and prices.

Most of the latest fish finders provide extra features that are not always relevant for you in different fishing environments. It’s relatively easy for a lot of fishing beginners to feel lost. Because of these reasons, It becomes difficult for anglers to choose best fish finder in 2021 for their fishing needs.

But there’s nothing to worry about, Fellow Anglers!

We have put together a complete buying guide that provides all the details you need before buying a fish finder. The most reliable way to find the best fish finder within your budget is the ability to distinguish between the features you must need and the optional features you won’t ever use.

At the end of this guide, you’ll be confident enough to decide, ”What is the best fish finder for you?”, even if you’re a first-time buyer. So, without any fuss or delay, let’s see some of the components below that you’ll see in most of the latest fish finders while surfing the markets.

Different things to know about before Buying a Fish Finder

By understanding the different features of a fish finder, you can easily classify all the components into two categories; the features that your fish finder must provide and the unnecessary features that are optional.

1- Transducers for the fish finders

The way a transducer works is, they cast sound waves in the water in various directions. The waves hit with different objects submerged underwater, including target fish, baitfish, and various underwater structures. The hitting sound waves bounce off, and the transducer receives the waves back for further reading.

The interpretation of received Sonar Waves

The central unit of the transducer interprets the received data in a readable form. The display of your fish finder finally shows the translated data in the form of images. The imagery provided by the transducer is very beneficial to give fishing insights to the anglers. The detailed images further helps to understand different water structures and tells the potential worth of fishing spots.

The transducer you select will vary according to the different waters you’ll choose for fishing. You should choose one that can provide you with clear images when you’re at any of your favorite fishing spots.

2-Mounting locations of a Transducer

You can mount a transducer in various locations on your boat. The location where you install the transducer specifically depends on the boat’s most convenient place, so that it can fit there easily to do the job efficiently.

The most common spot where a transducer is usually mounted is a transom of a boat. You should go for a Transom mount transducer if you’re planning to fish from a small boat and usually do fishing at low speeds.

In-hull transducers are glued directly to the inside of the hull. You should opt for an In-hull mount if your boat’s hull is either made of fiberglass entirely or thick aluminum that partially covers the hull.

You can mount a Thru-hull transducer through a hole drilled in the boat’s base and extend it directly into the water. The Thru-hull transducer is very typical among anglers because it provides the best performance and detailed accuracy.

3-Understanding the Cone Angles

Transducer cones usually vary from 10-60 degrees, but most of the depth finders for boats are coming between 15-20 degrees of cone angles. The transducers with wider cone angles are less effective in shallow waters.

If you are new to fish finders and often go on fishing tours with friends and family, then a transducer with at least a 20-degree cone angle will be your best choice to hunt fish in different water depths easily.

4-Understanding the Scanning Sonars

There are generally two methods that a depth finder for boat uses to scan water structures and lookup for the target fish; Down Imaging and Side Imaging

How Side Imaging works?

The Side Imaging Sonars let you see all the details on both sides of your boat. Furthermore, the main advantage of such a fish finder with a Side Imaging Sonar is that you can horizontally cover a broader range of fishing water.

Side Imaging is very useful, and anglers mostly use it in freshwater, where you won’t have to explore more in-depth as the water clarity is high compared to saltwater, and fish like to swim near the surface.

How Down Imaging works?

On the other hand, a Down Imaging Sonar allows the anglers to scan underwater details vertically. Down Imaging Sonar’s primary goal is to get you detailed and accurate images of a water body where most of the target fish tend to swim near the bottom or more in-depth.

Anglers mostly prefer to use Down Imaging Sonars in saltwater because of salinity in the water and target fish not swimming near the surface. To have a better idea of what’s sneaking beneath your boat, you’ll need the help of a Down Imaging Sonar that supports more wattage of power. The logic is that you will have to explore deeper in saltwater, so you will have to send waves in more depth than freshwater.


Side Imaging Sonar is very useful when fishing in the water where the water clarity is high because of less salinity, and you can easily spot water in typical depth. Down Imaging Sonar is very useful when you’re targeting fish in saltwater, where fish naturally like to swim near the bottom of the water bed.

Furthermore, If you are on the higher side of the budget and can’t decide which scanning Sonar your fish finder must have, you should opt for one that offers both Sonars in 1 unit at an affordable price.

5-Importance of Display

A fish finder’s display is as important in your fishing trip as other components responsible for providing you crystal clear underwater images.

In addition to the display size, the ability to read the screen in various fishing environments, the color range used to display images, and the durability are the key factors to determine a fish finder that can assist you in your next fishing trips.

It would be best to opt for such a fish finder that gives you as much ease as possible while operating it from the display. For example, a fish finder’s touchscreen will help you quickly access the fish finder’s essential functions with few taps. A large HD display screen will allow you to view more underwater details at once.

6-Importance of built-in GPS in a fish finder

A fish finder with GPS compatibility provides important fishing insights to anglers throughout a fishing tour. When you own a fish finder that provides you with not only detailed underwater details but also the latest precise maps, you get an extra edge on your fellow angler, for sure.

A fish finder with a built-in GPS takes you to your favorite fishing spots with ease. Most of the fish finders with GPS compatibility also allows you to note water temperature and other essential fishing insights. You can get your current location on the water within seconds, whenever you want.

Most of the GPS fish finders come in combination with Mapping and Chartplotting specifically. Whether you want to continually stay aware of your current location or where are the most productive fishing spots, you can easily do it with maps and Chartplotters.
Furthermore, you can easily store your newly discovered sites as maps and waypoints in an SD card.

6 Questions you need to ask yourself before buying a fish finder

Before buying anything from the internet, many questions come to our mind before we initiate the call of action and purchase the product, we were interested in getting. If the buyer can get satisfactory answers to those questions, it becomes easy for them to choose the best product for themselves.

Keeping the above things in mind, here are the six questions that any angler should ask himself before buying a fish finder, whether they’re a first-time buyer or upgrading to a fish finder recently released.

1-What is the preferred type of water you’ll be fishing to catch fish?

There are different types of water where anglers fish in their spare time. Fishing in these water bodies differs from each other based on some factors, such as salinity level, depth, etc. As the fishing environment changes, the fish locators vary from one model to another model as well.

Three types of fishing in different water bodies are as follows.

1-Saltwater fishing

Fishing in saltwater requires mostly in-depth scanning because fish like to swim near water beds in such waters. You should opt for such a fish finder that does excellent scanning in the water vertically. In easy words, you should go for a fish finder that’s well known for Down Imaging or Down-scanning.

2-Freshwater fishing

Fishing in freshwater doesn’t require in-depth scanning because firstly, there’s less salinity in the water and water clarity is high. And secondly, fish like to swim near the water surface.

Based on the above factors, you should specifically opt for such a fish finder that does excellent scanning in the water horizontally. In easy words, you should go for a fish finder that’s well known for Side Imaging or Side-scanning.

3-Ice Fishing

Ice fishing is the type of fishing on a frozen body of water where the anglers use an opening in the ice and use the fishing gear to catch fish. Fishing on icy water is slightly more challenging than fishing in saltwater and freshwater because you can never know what’s sneaking beneath the thin layer of frozen icy water without the help of an ice fish finder. That’s where an ice fishing fish finder comes in handy and does all the hard work for you.

2-What is the type of boat you’ll be using for your fishing trips?

Whether you’re fishing from a Kayak, Bass Boat, Center Console, or Pontoon, the type of fishing boat matter as well that you’ll be taking for the fishing trips. The primary reason behind this logic is that the proper installation of a fish finder on any boat depends on many factors. Spare space available on the ship, the safety and durability of the fish finder, and how easy it is for you to operate it efficiently are the key factors to consider before installing a fish finder on any boat.


If you mostly take your kayak on fishing trips, you’ll need a portable depth finder because of the small space available on a kayak. Although you can also choose a mountable fish finder for kayaks but it would be slightly challenging for you to use a mountable fish finder in such a situation.

3-What can be the preferred type of fish finder for your boat?

Different fish finders available in the market can be broken down into three major categories, because of the difference in their installation, how they work, and how you can operate them efficiently from a boat.

Portable fish finders

Most companies have designed the best portable fish finder for small boats, where the spare space on the boat is a significant issue. Some anglers also prefer to use handheld fish finders, even if they’re not fishing from a small boat, because of comfortability and ease of use.

Mountable fish finders

Anglers can also mount their fishing units on various spots on a boat so that they can safely drive the boat to their favorite fishing spots and continually see the display of the fish finder at once. Mountable fish finders also need you to spend some time for a proper installation as the process is not necessarily the same for all boats.

Castable Fish Finders

Fishing with the help of a castable fish finder is very useful when you’re fishing from shore or near the coast. You can attach the floating transducer with the fishing reel and cast it into the water. Because of their unique working, such units usually connect the transducer with the smartphone through Wifi or Bluetooth connectivity. You can get all the underwater images on the synced smartphone in no time.

4-What is your budget, and how many bucks you can invest in a fish finder?

One of the most important questions you should ask yourself before buying anything off the internet is your budget and the maximum amount you can invest in that specific product. Such an action will help you get a fish finder that’s most suited for your fishing needs and meets your budget as well.


If you own a small boat, such as a kayak, and you’re low on budget, you should go for one of the best portable fish finders. It is the most economical choice you can make while choosing from a list of kayak depth finders on a limited budget.

Whereas if you own a medium-sized boat for recreational or commercial fishing, you should opt for a fixed fish finder that falls under a medium budget. The long-run advantage of a mountable fish finder is that you can use it on a kayak (you’ll have to be slightly careful while using it on a kayak), as well as you can easily adjust it on a boat as well.

5- What are the main features and functionalities your desired fish finder should have?

Most of the fishing units come fully packed with various features that you may not need in different fishing environments. If you often fish in freshwaters, you should select a fish finder equipped with a Side Imaging Sonar rather than Down Imaging.

Furthermore, suppose you’re mostly fishing in local small lakes, and you’re entirely familiar with the areas of those small lakes. In that case, you don’t need a fish finder that’s integrated with preloaded maps. As a result, You can save a noticeable chunk of money this way.

6-Are you going to use it as a recreational fisher or a commercial fisher?

The one crucial question that determines your budget is whether you’ll use that specific product for personal or professional usage.

Recreational Fishing

If you’re someone who especially go on fishing trips in your spare time as a recreational activity, you should go for a budget-friendly fish finder that can accurately do most of the tasks to help you catch more in less time.

Commercial Fishing

If you’re commercially attached to fishing and catching more fish is your goal, then you’re a commercial angler. You should prioritize a pricier fish finder equipped with all the necessary features and functionalities to achieve your desired productivity.

The extra amount you invest in a more expensive fish finder will reflect as a wrong decision at first. Despite of the extra money you invest, the additional perks get you more fishing productivity at that price.

Fish Finder FAQs

Alfred Jenkins is a professional fisherman for the last five years. He’s been fishing in many locations worldwide, including Alaska, Chile, and Spain. He has successfully caught over 100 different fish species, including Blue Marlins, Bonefish, Permits, and many other names to mention on the list. He is a true fisherman who spends most of his spare days on the water and loves every second of it.

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