Best Portable FishFinder Reviews

Best Portable Fish Finder Review & Buying Guide 2021

Top 6 Portable Fish Finder Reviews - 2021 Updated

Passionate anglers understand what goes into making the fishing experience extraordinary. While newbies may take up fishing as a hobby, there is a lot more that one can get out of fishing apart from dinner. Fishing gives you the chance to bond with your friends and family with every catch you reel in. It gives you the adrenaline rush of experiencing adventure and lets your take in the beauty of your surroundings. However, to have a great fishing experience, you must have the right tools. One of these tools is a portable fish finder.

Every angler has their own preferred style of fishing. While some may opt for shore fishing, others may enjoy deep-sea fishing and lure in big catches of Tuna or Marlin. These preferences dictate the kind of fishing equipment that you need. As a rule of thumb, the more advanced your fishing equipment is, the higher are the chances for your experience to be fun and convenient. However, anglers who do not make proper use of the required fishing equipment basically add strenuous and boring fishing tasks to their trip. It is rather important for anglers to not only know all about the different types of equipment but also have them in their tackle box.

Some of the most common fishing gear includes fishing rods, traps, lines, nets, and hooks. However, with the advancement in technology, another important type of fishing equipment has reached the markets. A must-have device for every angler out there is a portable fish finder. With the help of this sonar device, anglers are able to send pulses of sound waves down through the water. Once these waves hit an object, like a fish or an obstacle, it is displayed on the screen of your portable fish finder. The more advanced your fish finder is, the more it can contribute towards making your fishing experience hurdle-free.

Just like other fishing tools provide many functions, the best portable fish finder will offer you plenty of features that you can make use of. The effective response that you get from your finder allows you to see fish and the structures that you may not be able to see otherwise. However, it is important to conduct a thorough search before you settle upon buying a particular fish finder. Considering the different types of fish finders available in the market, a single misstep in choosing the right finder can work against your experience.

Our Top 3 Portable Fish Finder of 2021

Best Overall
Lowrance HOOK2 Fish Finder

  • Variety of transducers
  • User-friendly interface
  • GPS included
Editior's Choice
Garmin Striker Plus 7sv Fish Finder

  • IPx7 waterproof
  • Up to 5,000 Waypoints
  • Dual-frequency unit
Best Pick
Eyoyo Portable Fish Finder

  • 9-inch LCD screen
  • IP68 waterproof
  • Good battery life

Comparison Table of Portable Fish Fisher Review 2021

Image Product Feature Price
Editor's Choice
Garmin Striker Plus 7sv Fish Finder
• Transducer for built-in Garmin CHIRP • 7-inch bright display • Wi-Fi for access to ActiveCaptain App • Intuitive user-interface Read More. Check On Amazon
Best Overall
Lowrance Hook2 Fish Finder
• Double CHIRP sonar coverage • High-resolution SOLARMAX display • Full chartplotter • GPS navigation options Read More. Check On Amazon
Best Pick
Eyoyo Portable Fish Finder
• 9-inch LCD screen • 1000TVL camera • 12pcs white LED • IP68 waterproof Read More. Check On Amazon
Best HandHeld
HawkEye Fishtrax 1C Fish Finder
• HD color display • Dual frequency • Auto and manual depth-range • Bottom lock and zoom Read More. Check On Amazon
Best Affordable
Venterior Handheld Fish Finder
• Senses fish up to 328 feet down below • Long transducer cable • Runs on 4 AA batteries • Easy-to-see display format Read More. Check On Amazon
Best Display
Garmin Striker 5DV Fish Finder
• GPS for marking waypoints • CHIRP technology • Multiple viewing configurations • Flasher displays option for vertical fishing Read More Check On Amazon

Let's find out Best Portable Fish Finder for Money 2021

You can find quite a large variety of portable fish finders manufactured by various companies out there. However, the best portable fish finder is the one that fulfills your fishing requirements to the core. While some portable fish finders may cover a larger area, others may have a better display or offer you better waypoint-marking features. Read our portable fish finders reviews and learn all about their characteristics and features. To help you choose one, here are some of the best portable fish finders reviews:

Click on below product link for quick switch

  1. Garmin Striker Plus 7sv Fish Finder – Editor’s Choice
  2. Lowrance Hook2 Fish Finder – Best Overall
  3. Eyoyo Portable Fish Finder – Best Pick
  4. HawkEye Fishtrax 1C Fish Finder – Best Handheld
  5. Venterior Handheld Fish Finder – Affordable Price
  6. Garmin Striker 5DV Fish Finder – Best Display

The first on our list of reviews is a portable fish finder for kayak boats: Garmin Striker Plus 7sv. The manufacturer itself needs to introduction as it is well-known for producing the best portable fish finder devices. From the Striker Plus Series, 7sv is highly recommended. This device is especially for anglers who either own kayaks or prefer kayak-fishing. With this portable fish finder, anglers can get a great combination of a fish finder and GPS. Apart from that, it offers a variety of features which make it a must-have for anglers looking for convenience.

Main Features

  • Transducer for built-in Garmin CHIRP
  • Built-in Quickdraw Contours Mapping Software
  • 7-inch bright display
  • Wi-Fi for access to ActiveCaptain App
  • Intuitive user-interface

While the Garmin Strike Plus 7sv is classified as an affordable device, it is not to be mistaken as cheap or low-quality. Anglers have claimed that this device provides the latest, innovative features which update regularly. For those looking for consistently improving technology to enhance their fishing experience, this device beats all others. With high performance capability and built-in maps, anglers can mark and find their waypoints to and from the dock without any issues.

As suggested by the name, this device comes equipped with a 7-inch bright display. Anglers can easily view the display in broad daylight with the amazing readability that it offers. Along with that, the interface of 7sv is highly user-friendly and it provides anglers the ease that other devices tend to overlook. Professional anglers as well as freshly inducted ones can make great use of the high-sensitivity GPS function which works well with the Garmin CHIRP Traditional Sonar.

In addition to this, anglers planning on buying this device are also offered with various other features. The CHIRP ClearVU and SideVU features provide anglers with extra help in viewing objects that are present in the surroundings or underneath their boats. This is especially great for those anglers who prefer being aware of any potential obstacles in their path.

Moreover, the Striker Plus 7sv has built-in Wi-Fi which allows anglers to easily access the finder’s ActiveCaptain App remotely. This feature can be paired with any of your smart devices to communicate with the Quickdraw Contours Community and transfer marked waypoints while also receiving update notifications for the software. Anglers can stay in touch with their angler buddies throughout their fishing trip and save their favorite spots to visit them again.

Also, another important feature of this portable fish finder is that it is IPX7 waterproof and the structure is rugged enough to withstand harsh water conditions. Come rain or storm, anglers do not need to worry about their devices coming in contact with water. Not to mention, the boat speed display keeps anglers well informed about their pace. Anglers can easily calculate the duration of their trip and the distances they have to cover and plan their trips accordingly.


  • Dual-frequency unit
  • Up to 5,000 Waypoints
  • Numerous 2D sonar functions
  • IPx7 waterproof


  • Limited networking options
  • Waypoints are only transferrable from Garmin devices

Moving on to the second device on our list of portable fish finders’ reviews, we have Hook2 which is manufactured by Lowrance. Every angler loves a portable fish finder that offers them features that are superior as compared to features in other fish finders. This one especially is classified as an all-in-one package that is equipped with features beneficial for all levels of anglers out there. Whether you are a professional angler or have just started fishing, Hook2 can prove to be an extremely durable device for you – let us tell you why.

Main Features

  • Double CHIRP sonar coverage
  • High-resolution SOLARMAX display
  • Full chartplotter
  • GPS navigation options
  • SideScan and DownScan imaging

New entrants in the world of fishing can now make their experience more adventurous with the help of Hook2 as it is considered the best portable fish finder. The settings for this portable fish finder are fairly easy and offer the perfect blend of simplicity and power. With easily understandable menus to wide-angle CHIRP sonar coverage to SideScan and DownScan imaging, anglers can get the complete picture of any object in their surroundings.

One of the most important features that makes Hook2 the best portable fish finder is the autotuning sonar technology it is equipped with. This feature helps anglers in getting the best image of objects underneath their boats. Hook2’s sonar technology automatically adjusts its sonar settings according to the water and how it changes. Since this device is designed by anglers, it is very user-friendly. It is a great choice for all the anglers looking for an affordable portable fish finder that allows you to reduce the time spent on setting the device and focus more on fishing.

Hook2 is a portable fish finder that can claim to be ‘one for all’. This is especially due to the multiple choices it offers in terms of your preferred transducer type. With this portable fish finder, anglers get an option to choose between the TripleShot, SplitShot, and Bullet transducers. The TripleShot Transducer is a 3-in-1 model that offers anglers with the traditional high CHIRP wide-angle sonar along with SideScan and DownScan imaging. Anglers can track baits, mark fish, and identify structures underneath their boats. On the other hand, the SplitShot Transducer offers all of the features of a TripleShot but is a 2-in-1 model. A Bullet transducer is ideal for anglers looking for portable fish finder for kayak boats with a basic GPS plotter and wide-angle broadband sounder.

This fish finder comes in three different display sizes: 5-inches, 7-inches, and 9-inches. The rest of the specifications are the same including the IPX7 waterproof protection which keeps the finder safe from potential damage throughout your fishing trip. The power supply ranges from 10v minimum to 17v maximum and consumes 6.1W at a time. The HOOK2 has a transmission power of 200w rms Sonar and an operating frequency of 200 kHz Wide-Angle Sonar. The beam width is 40 degrees with a depth of more than 80 meters that helps in covering large areas to detect motion or objects.


  • Variety of transducers
  • User-friendly interface
  • GPS included
  • Affordable price


  • No wireless connection updates

The Eyoyo Portable Fish Finder is not your ordinary fish finding device. Anglers who are passionate about capturing some high-quality images underwater are missing out if they have not yet bought this device. While the Eyoyo LCD monitor is great for viewing a clear image of any object or happenings underneath your boat. It also offers the feature of capturing the view underneath. This 2-in-1 device is equipped with numerous features that can help anglers take their fishing adventures a few notches up.

Main Features

  • 9-inch LCD screen
  • 1000TVL camera
  • 12pcs white LED
  • IP68 waterproof
  • Sun-visor

There is nothing better than getting the full picture of the catch you plan to reel in. Thankfully, with the Eyoyo 9-inch Portable Fish Finder anglers are offered a display that is realistic and delicate. It has a TFT monitor which comes with a sun-visor and can be made suitable according to the brightness of the environment. Along with that, it has a 1000TVL camera which is especially manufactured with a program chip. Not to mention, the device features 12pcs IR LED lights which allow for anglers to see fish clearly in the depths of the water.

Since this specific model manufactured by Eyoyo is classified as a top-tier, premium finder, the features it offers are rather useful for those with large vessels. As compared to the previous models designed by Eyoyo, this portable fish finder stands out and is one that most fishermen would want to invest in with complete reliance. From display to imaging and sonar types to its overall capabilities, the Eyoyo 9-inch LCD Portable Fish Finder offers quite a lot for fishermen regardless of their style of fishing.

Moreover, for anglers who want to record the scenes underwater, they can do so with the help of the DVR recording features. This device comes equipped with an 8-gigabyte SD card which allows recording and storing of the captured videos easily. With the 4500mAh high-capacity rechargeable battery cell box, anglers can spend hours at the sea without having to worry about their portable fish finder plus recording camera dying anytime soon. With the high-powered battery, anglers can use this device for anywhere between 6 to 8 hours continuously with one full charge.

Eyoyo has been big on giving anglers a stress-free fishing experience. This is especially due to the IP68 waterproof rating that this device offers. While every angler has their own preference and style of fishing, this device has kept in consideration the requirements of all anglers out there. Whether it rains hard or your device comes in contact with sea water, there is nothing for you to worry about with the superior waterproofing that keeps your device completely safe.

Additionally, anglers get the advantage of having a portable fish finder that imitates fish rather than disturbing them. This device has a special silver look and fish shape which lures fish in instead of scaring them away. This is a great feature especially for anglers who have just started their fishing journey and want to improve their reeling skills. Another benefit that anglers have with this device is the connecting cable which is incredibly long and measures approximately 100 feet.


  • Camera imitates fish
  • Good battery life
  • Great portability


  • Premium product with premium price

Considering the various types of portable fish finders that are available in the market, there is always a tradeoff between the features. While they may offer one of the best features from a certain category, they would certainly lack in the other. Anglers can find plenty of clunky options in the market. These finders need to be connected to a phone to be used which cuts down the reception or SONAR quality. However, with the HawkEye FishTrax 1C, there is no compromise between the features and the quality offered by them.

Main Features

  • HD color display
  • Dual frequency
  • Auto and manual depth-range
  • Polarized LCD
  • Bottom lock and zoom

HawkEye has launched similar models previously but the all new 1C is equipped with all the features that are suitable for beginners as well as professional anglers. Being one of the most powerful units within the FishTrax Series, this device is packed with premium offerings in a compact unit. This makes the device the best portable fish finder in terms of not only its features but also its size and weight.

The FishTrax 1C has specifications that make it stand out from other portable fish finders. These specifications include the intelligent sonar which helps in getting precise readings for up to 240 feet. Apart from that, it as has the VirtuView HD color display which is in fact one of its greatest features, as it offers a glare-free view for better readability with the help of the LED backlight. The sonar feature of this portable fish finder can be trolled, mounted, and even floated, which is unmatchable in terms of convenience when compared with other finder devices.

Additionally, 1C offers the FishArc and FishID features which allow anglers to target the fish with the help of HD booting landscape imaging. This feature operates on an algorithmic software which eliminates the potential of false readings and sounds an audible fish alarm that alerts you when there is a presence of fish near you. Moreover, it comes with an ice-flasher mode which turns the display screen into an ice flasher. This allows anglers to see the returns in a circle shape with different colors for how soft or hard an object possibly is.

For anglers who love a crystal-clear display and are looking for portable fish finders for kayak- or shore-fishing, the HawkEye FishTrax 1C is the best portable fish finder they will come across. Considering the all-inclusive features in a tiny pack and a price that is unmatchable with other finders of similar type and category, this fish finder is a must-have! Also, professional anglers have claimed that this particular portable fish finder fulfills their basic fishing requirements but also offers advanced features that can prove to be highly useful in enhancing the fishing experience.


  • VirtuView HD color display
  • Dual-beam intelligent sonar
  • LED backlighting
  • Ice-mode digital flasher


  • Unit cover not included

Next, we have included the Venterior Handheld Portable Fish Finder in our portable fish finders reviews for all the fishing lovers out there. Anglers who enjoy fairly long fishing excursions consider this the best portable fish finder. There are plenty of amazing features that this device offers. However, one of the most important features that makes this device beat all other finders is its long-lasting battery – it can last your entire trip!

Main Features

  • Senses fish up to 328 feet down below
  • Long transducer cable
  • Runs on 4 AA batteries
  • Easy-to-see display format
  • Five sensitivity settings

The Venterior Handheld Portable Fish Finder is a great choice for anglers who prefer semi-serious fishing without spending a fortune on fancy models with complicated features. With the simple LCD screen this device is equipped with, anglers can see data displayed in green with gray in the background. It has an anti-UV coating which allows for the device to last longer in the sunny summers. Additionally, this portable fish finder uses simple graphics for displaying data and shows information like the depth of water and the size of any sonar hits. While the screen is simple-looking, it does show important information with an easy-to-see format.

Moreover, this portable fish finder works at depths of 3 feet down to 328 feet. While that is just the depth of the sonar, the connecting cable on the other hand is 25 feet long which means anglers can get reading from as deep as 25 feet away from the current position. One drawback claimed by anglers is that the device is not waterproof. This restricts them to an extent and requires for them to be cautious not to submerge the device in the water. However, the transducer and the sonar sensor are both waterproof.

Another feature that makes this device the best portable fish finder is its sensitivity settings which allow anglers to adjust the sensitivity according to their preference. There are five different sensitivity settings as per which you can save the device’s battery life or display a full range of data for several minutes. One setting can work as a battery-saving mode where the screen stays off. The other setting of backlight mode can help anglers see things clearly on the screen at night. The unit-of-measure mode allows you to change between meters and feet and the fish alarm setting alerts you when there are fish nearby.

The beauty of this portable fish finder is that it can easily be used in all conditions. It can even be used for ice fishing as long as the sensors are kept above 0-degree Fahrenheit. Since ice water is just above 32 degrees, anglers are good to go for ice fishing. Using this, they can detect fish underneath the ice before they drill a hole and clear a patch of ice by removing any snow. All that needs to be done is to place the sensor on top of the ice pointing downward so it picks up movement. The other option is to drill through the ice and let the transducer down into the water.


  • 25-foot transducer cable
  • Option to mount it to the boat or hang around your neck
  • Backlight for night fishing
  • Ideal for ice fishing


  • Does not have a color display
  • Main unit not waterproof

From the Garmin Striker series, we have another device on our list which is claimed to be the best portable fish finder for anglers who love a multi-functional device. The Striker 5DV is a finder that helps anglers in finding the best location for fishing at any time of the year. Not only does it allow anglers position themselves over fish-holding structures and schools of baitfish but also its amazing GPS features let anglers mark hot spots for them to return to again.

Main Features

  • GPS for marking waypoints
  • CHIRP technology
  • Multiple viewing configurations
  • Flasher displays option for vertical fishing
  • Accurate readings to over 1000-foot depths

The first most important feature in the Strike 5DV Portable Fish Finder is the built-in GPS. With the help of this GPS, anglers can mark any fish-holding structures and save productive waypoints for them to return to later. Anglers get the benefit of planning their fishing trip in advance and heading to fish-loaded spots on lakes by saving a series of waypoints. This is especially useful as Garmin saves the points in an alphabetical listing and allows viewing options to see real-time locations. An added bonus with this feature is that anglers can electronically share these waypoints with other Garmin users.

The built-in flasher is another amazing feature that can prove to be of great help. Instead of using a separate flashlight for vertical fishing presentations, Garmin Striker 5DV users can switch to the sensitive flasher display options. In this display, anglers can get information regarding the bottom type, depth, vegetations, as well as depth of individual fish that are near their boats. Some professional anglers like to monitor their lure or bait as it moves through the water column to note the reaction of fish that they have marked.

While other portable fish finders focus on providing anglers with the basic required features, Striker 5DV is a device that stands out. This is mainly owed to its versatility and how it is designed to be suitable for both saltwater and freshwater fishing. The displayed readings are accurate to 2,300 feet in freshwater. Due to the increased density, the 5DV is able to read 1,100 feet in saltwater. Along with that, this portable fish finder comes with a portable carrying case which allows for anglers to transport their device anywhere conveniently. The case is waterproof and has a rechargeable battery included in it.

Lastly but importantly, the Garmin Striker 5DV is featured with a 5-inch color display which has a backlight. This display screen has high-resolution results and is readable in all types of outdoor light conditions. Anglers can get an accurate idea of what is happening beneath the surface of their boats. With the split-screen mode, anglers can view various configurations at one time. Viewing options include bottom imaging, flasher, and GPS. Additionally, the included transducer sends a stream of frequencies continuously using CHIRP technology and Down-Vu Scanning.


  • Affordable price point
  • CHIRP technology
  • High-resolution display
  • Ideal for ice fishing


  • Lack of included directions
  • Complicated to find boat speed settings


When it comes to fishing, quite a few factors contribute to making any fishing excursion adventurous and fruitful. While some anglers look for serious fishing equipment, others may like getting tools that allow for them to have their fair share of fun along with reeling in some good catch. However, what remains common between all types of fishermen is their need for certain tools which specifically include the perfect portable fish finder.

Whether you are a first-time buyer or a passionate angler looking for an upgrade of fishing gear, this article explains the important features in detail to make it easy for you to select the right finder. This will not only save you the hassle of finding the best portable fish finder, but it will also save you from buying a fish finder that does not fulfill your requirements.

For our list of portable fish finders reviews, we have gathered the most-used and highly-rated devices that anglers around the world can swear by and are completely satisfied with. To make it even easier for anglers looking to buy a new portable fish finder, we have come to decide our top favorites.

The first one on our list is the Garmin Striker 5DV as it does not just come at an affordable price but offers features that allow for it to be the best portable fish finder out of all the others. Then we have the Venterior Handheld Portable Fish Finder for all fishing enthusiasts out there who like long fishing trips and a device that does not die on them midway. Lastly, we recommend the Eyoyo 9-inch LCD Portable Fish Finder for anglers who want to pack fishing and photography together for best image results.

That being said, we highly suggest that you make your choice based on your particular fishing requirements – Good luck and happy fishing!

List Of Best Portable Fish Finder Reviews 2021 (Jan Updated)

  1. Garmin Striker Plus 7sv Fish Finder – Editor’s Choice
  2. Lowrance Hook2 Fish Finder – Best Overall
  3. Eyoyo Portable Fish Finder – Best Pick
  4. HawkEye Fishtrax 1C Fish Finder – Best Handheld
  5. Venterior Handheld Fish Finder – Affordable Price
  6. Garmin Striker 5DV Fish Finder – Best Display

Your Guide to Buying the Best Fish Finder

With numerous types of fish finders out there, if you are looking to buy one for yourself, there is a high chance that you may get confused with all the technicalities. In this case, your experience may become rather become daunting. That is why we have listed down a few main features for you to understand and learn from if you are a first-time buyer or an angler who is looking for an upgrade. This will not only help you in finding the best portable fish finder, but also save you from drilling a hole in your pocket as you would know about the exact features you need in a portable fish finder.

Display Size and Resolution

One of the most important features of a fish finder is the size of its display and the resolution it offers. Regardless of whether you like fishing during broad daylight or at night, keep in mind that the number of pixels your chosen model offers will greatly influence the clarity you get. If you want a sharper display, opt for a model that offers plenty of pixels. Similarly, the size of the display matters depending on whether you want a big or small view. That being said, a bigger display may cost more, so you need to prioritize your requirements according to your budget.

Best Fish Finder Display TheOceanScan


The most important part of a portable fish finder is its transducer without which it is practically useless. Transducers send and receive sonar waves that go into the water and bounce off of objects. Once the transducer picks an object, it sends data to the central unit and displays the information on your screen. This is the main feature that aids you in reeling in some great catch. Depending on the type of vessel you are using, the transducer material holds a lot of importance.

Transducer FishFinder TheOceanScan

Power Wattage

The power wattage of any portable fish finder is solely dependent on how you want to use the finder. Every electrical appliance operates on power. Fish finders also have a certain capacity of wattage they work with. The higher the wattage, the better functioning your finder would have. Choosing a fish finder with optimal wattage will offer faster sonar waves and the result you see on your display will appear faster as compared to finders with lower power wattage. However, for those who like fishing in shallow waters, a low-power fish finder will work just fine.

Best Fish Finder Power Wattage

GPS Functionality

Whether you are just starting out or you have been angling for ages, when you are in the sea, GPS maps can help you quite a lot. With a portable fish finder that offers the map feature, you can mark the best fishing spots and waypoints for you to not lose your way and return to your spots safely. Moreover, maps can help you with an overview of where you could find slopy edges and underwater hills. Considering the advancement in technology, you can also find fish finders with features that allow you to share your marked waypoints as well as save them for you to revisit them later as well.

Best Fish Finder GPS Functionality

Mounting Option

For anglers who already own a vessel or are interested in different fishing styles, having a fish finder with mounting options can prove to be of great help. On the other hand, if you are an angler who does not own a boat and prefers renting boats often, mounting options can still be useful but only if they allow for you to easily attach or detach your portable fish finder without causing any harm. The quick-release and adjustments options are especially great. Using these options, you do not need to fumble around with your portable fish finder each time you want to dismount it.

Best Fish Finder Mounting

Best Portable Fish Finder – Frequently Asked Questions

Numerous manufacturers can be found selling portable fish finder devices out there. However, customers have had some questions regarding the basics of these devices. We have gathered some of the most frequently asked questions from anglers. We will be answering these questions in order to make it easier for anyone reading to understand how portable fish finder devices work. With this information, you will be able to make an informed decision with regards to your fish finder purchase.

Is it worth buying fish finders?

Whether a fish finder is worth buying or not is solely dependent on the usage of the angler. For those who are passionate about fishing and want to reel in catches of their choice, having information regarding their surroundings in the water can be very useful. Portable fish finders can surely prove to be helpful in the sense that you can use these devices to access details about of the water, fish, potential obstacles etc.

What is the purpose of a fish finder device?

Fish finders are an advanced version of sonar devices which help anglers in locating schools of fish. This is done by transmitting sound waves downward into the water and receiving echoes from the bottom if there are fish present in the current spot.

How long will a fish finder battery last?

Depending on your usage and the kind of fish finder you have bought, the ideal time for a fish finder using about 2amps is around 50 hours. However, if you are not certain about your trip’s duration, an extra set of batteries can help you.

What do fish look like on a fish finder?

When trying to detect fish on the display screen of a fish finder, anglers are to consider the fact that all fish may look the same with a 2D sonar. However, they appear much smaller when using side imaging as it features a down beam which shows as a narrow slice of the water column. That is why anglers are likely going to see circles or small ovals depending on the model of the fish finder they have.

Are portable fish finders any good?

Portable fish finders can be of great use especially for anglers who do not own a vessel and cannot permanently mount a unit. For rental boats or temporary mounting on small boats, portable fish finders can be a superb solution as they can be carried and transported easily from one place to another.

Check out all the other fishing gear article put together by the expert team here at The Ocean Scan