7 Best Kayak Fish Finders Reviewed

Today, we’ll talk about the top five fish finders for boats and the best batteries and power packs for fish finders. 

Our team at Fishing Twist and I carefully reviewed every fish finder on the market to find the best ones for kayak anglers.

We like the Garmin Striker Vivid 4cv Fishfinder . This device is straightforward because of its large 7-inch screen and easy-to-press buttons.

Not only does the Garmin Striker Vivid 4cv in fish finding, but it also offers advanced navigation features. You can create charts, set waypoints, and plan your journeys with ease. It even comes with a built-in GPS for added convenience.

Let’s get started.

Our Top 7 Picks

The 7 Best Kayak Fish Finders

Now let’s cast our fishing line and begin compiling this list.

  • Screen Size: 3.5 inches
  • Type of Connection: GPS Transducer
  • Weight: 0,5 pounds


  • Clear Underwater Images
  • Easy To Use Interface
  • Water Resistant Design


  • Limited Screen Size Option

Everyone who likes to fish and wants to see what’s happening below the water should get this Garmin fish finder. It uses sweeping sonar called Clear Vu, which is like getting a prominent picture of the bottom of a lake or river. You’ll see fish, structures like rocks and plants, and underwater things in fantastic clarity.

The simple keyboard and specific buttons for all the most important features make this fish finder easy to use and put on your boat. The screens come in three sizes: 3.5 inches, 5 inches, and 7 inches.
The unit is also immune to water, so you don’t have to worry about harm if it gets splashed.

With the waypoint map tool, you can easily mark and save places you want to return to, like fishing spots, docks, or buildings underwater.
The map will then make it easy to get back to those places. It also has a depth measure built-in, so you can always see how deep the water is.

This fish finder has the standard flasher view for you if you like that.
It’s easy to see your sonar data with the built-in light, and it works great for vertical jigging and fishing through the ice.

People who like to fish and want a fish finder that is both strong and easy to use should get the Garmin. It’s easy to set up and use, and it comes with a lot of useful tools that will help you catch more fish.

  • Screen Size: 4 inches
  • Type of Connection: GPS CHIRP
  • Weight: 0.7 pounds


  • High-Quality Sonar Tech
  • Accurate GPS Navigation
  • Durable Water Resistance


  • Limited Screen Size

The Garmin Striker Plus four-fish tracker lets you see what’s below the water. It has excellent features that make fishing more fun. With Garmin CHIRP technology, you can see the bottom very clearly. This makes it easy to tell fish from other things. This clarity lets you see even the most minor details, like the spines and structures of fish, which helps you aim your shots more correctly.

One of the best things about it is the built-in Quickdraw Contours tool. It lets you draw your underwater maps of your favorite fishing spots.
Plans with 1-foot lines that show important places like reefs, docks, and houses can be saved so you can find them again later.

With the built-in GPS, it’s easy to get around in the water. You can monitor your boat’s speed and set waypoints to find hidden fishing spots.
Paths make it easy to find your way back. This information is evident on a bright 4.3-inch screen and can be read outside in the sun. And it’s straightforward to use, so you can see it even when it’s bright outside.

It can withstand rough waves and the sun. Its tablet buttons are easy to use even when your hands are wet from fishing.

A Garmin Striker Plus 4 is suitable for everyone who shoots. It has GPS, dual-beam CHIRP sonar, and Quickdraw Contours drawing software on the inside and is built to last. The screen is also readable even in bright sunlight.

  • Screen Size: 7 inches
  • Type of Connection: CHIRP Sonar
  • Weight: 2 pounds


  • Easy To Use Interface
  • High-Quality Sonar Technology
  • Accurate GPS Navigation


  • Consider High Cost

This is a Garmin brand gadget with a 4-inch screen. It weighs 907 grams and measures 2.1″L x 3.7″W x 4.3″H.

The device is a user-friendly 4-inch color fishfinder with recently launched vibrant scanning sonar color palettes. These colors make it easy to distinguish between fish and structure. The set comes with a tilt/swivel bailmount bracket.

The fish finder has a GT20 transducer that supports Garmin’s built-in CHIRP conventional sonar and CHIRP ClearVü scanning sonar.

It has a high-sensitivity GPS lets you mark waypoints, plan itineraries, and track your boat’s speed.

It also contains built-in Quickdraw Contours mapping. This tool lets you map the water body while fishing, resulting in comprehensive maps of your fishing places.

  • Screen Size: 5 inches
  • Type of Connection: Bluetooth
  • Weight: 0.05 grams


  • Long Battery Life
  • Easy To Use Interface
  • Weather Resistant Design


  • Limited Depth Detection

In this picture, you can see the ReelSonar Classic box. It requires less power, and the screen is 5 inches. It’s lightweight, weighing just 0.05 grams.

ReelSonar is a user-friendly smartphone fishfinder. It takes more than 10 hours to charge completely and can detect fish as deep as 135 feet. It has a Bluetooth fishfinder with sonar and comes with apps for both iOS and Android.

The built-in sonar waves can find and show pictures of still and moving things under the water. The fish icons are color-coded to show their size and depth.

A warning on the fish finder lets you know when fish gather under docks and piers. You can use the iBobber’s strike warning to determine when fish are biting.

With this machine, you can fish whenever you want, no matter the weather. You can use it on the beach or on the ice, in salt water or fresh water. You can begin your search as soon as you turn on your fishfinder.

Anyone who likes to fish will love the ReelSonar fish tracker as a gift. This is the best gift you can give your husband, dad, friends, or any fisherman on your list.

  • Screen Size: Not Applicable (Displays Data on phones or tablets using Wi-Fi.)
  • Type of Connection: Wi-Fi GPS
  • Weight: 0.77 pounds


  • Long Casting Distance
  • High-Accuracy Scanning
  • Portable and Easy To Use


  • Limited Depth Scanning

This is a deeper brand product, the ITGAM0303 model. It’s battery-powered and weighs 0.77 pounds. Its dimensions are 5.9″L x 2.95″ W x 5.32″H.

The Deeper Fish Finder has excellent specs and reliable communication. It can cast up to 330 feet and scan down to 260 feet, with a target separation of 0.5 inches.
It connects to iOS and Android devices through Wi-Fi, acting as a hotspot. No internet or cellphone data is required.

Its built-in GPS lets you produce bathymetric maps from the bank, boat, canoe, or kayak. The Fish Deeper app and online platform allow you to access your scans, maps, areas of interest, images, and notes.

The device provides real-time data at two beam frequencies and 15 scans per second. The depth, bottom structure, consistency, flora, and fish may be seen.

The Deeper Pro Plus fish finder is a wonderful addition to your boat or kayak accessories. It installs in seconds and does not need any connections, cabling, or extra batteries. Drilling is unnecessary.

The device’s battery is rechargeable. You may charge it as needed using the included micro USB B connector.

  • Screen Size: 4 inches
  • Type of Connection: Wi-Fi/Bluetooth
  • Weight: 4.5 pounds


  • High-Quality Display
  • Advanced Autotuning Sonar
  • Increased CHIRP Sonar Coverage


  • Heavy Weight (4.5 pounds)

Lowrance makes this, and the model name is Ice Fishing Electronics. It has batteries inside, a 4-inch screen, and weighs 4.5 pounds.

There are five screen sizes for the Lowrance fish finder: 4″, 5″, 7″, 9″, and 12″. It boasts a Solarmax display with excellent clarity for easy viewing.

One of its most impressive features is its autotuning sonar. It adjusts itself depending on the water level to provide the finest view of what’s below.

This fish detector is unique because it provides twice as much CHIRP sonar coverage as most others. This provides a more accurate and full image of what lies underneath, making it an excellent tool for locating fish.

  • Screen Size: 4.3 inches
  • Type of Connection: Ethernet
  • Weight: 2 Pounds


  • High-Power Output
  • Wide Sonar Coverage
  • Preloaded Maps


  • Limited Screen Resolution

The Humminbird PIRANHA MAX is a fishfinder for people who like to fish, boat, and do other water-based activities. It has a 4.3-inch, 480×272 pixel screen. 

This dual beam sonar technology makes it easy to find things beneath it. A detector is mounted on the back of the boat.

The PIRANHA MAX connects via Ethernet and is preloaded with North American maps. The kit includes a Humminbird 410150-1 PIRANHAMAX 4 fishfinder. The product graphic shows the mounting type.

The gadget produces a robust 2400-watt PTP/300-watt RMS. It can detect underwater depths of 320 feet (455 kHz) and 600 feet (200 kHz). 

The sonar coverage is 28° and 16° at -10dB, allowing for a broad detection range.

Buying Guide

Before you start spending money on products solely because of their titles, you should first grasp the product. Take a brief look at these recommendations to help you decide.


A fishing kayak is not the largest watercraft on the sea, but the more space you have for yourself, the better your fishing expedition will be.

However, a decrease in size results in a loss of functions and screen size. So, when making your purchase, think about your eyesight (smaller displays are tougher to read), the space on your kayak, and the mounting surface.


When selecting a mounting platform and brackets for your kayak fish finder, you must consider the size and weight of the instrument. Don’t forget about the design of your kayak.

The mounting platform and brackets should work with both your fishfinder and kayak. At the same time, it should be sturdy enough to hold the device’s weight without bending or flexing the boat. As a result, I would not install a $1,000 fish detector on a modest $100 kayak. As kayak quality declines, the likelihood of losing or destroying your equipment increases.


The transducer is a piece of the fish finder that sends and receives sonar signals to and from the water. The transducer handles converting electrical signals from the fish finder. It then turns it into sound waves that are transmitted into the water.

When buying a fish finder, be sure to understand what kind of transducer your equipment has. There are five different styles of transducers, but the most common are the traditional and CHIRP transducers. 

Traditional transducers are suitable for most fishing conditions. They use a single or dual frequency and are typically mounted on the transom or hull of the boat. In contrast, CHIRP transducers use a wider range of frequencies than traditional transducers to provide more detailed images of the underwater environment. CHIRP technology allows for better target separation and can detect fish in greater detail.


Fishfinders are commonly powered by 12-volt batteries. The most popular battery sizes for this application are 12V 7Ah and 12V 12Ah.

Typically, you may expect one hour of use for every amp hour. So, a 12V 7Ah battery can run a fish finder for around 7 hours.

Choose the appropriate display type and transducer, decide on your budget, think about your fishing surroundings and style, assess extra features, study reviews, and, if necessary, seek advice from professionals.


The fish finder business has benefited from substantial technological advancements. These are the best fish finders on the market, and the technology match that.

I’ll leave you with my own Garmin Striker Vivid 4cv Fishfinder to aid in your decision-making. I’ve only had good luck locating and catching fish with this equipment. Excellent quality is also present in the LCD.

If you’re a northeastern kayak angler targeting stripers in New York, chances are good that I’ll run across you. Anyway, let’s get those lines wet and wish you luck!

These are the best fishing kayaks, by the way, to use with your newly acquired fantasy kayak fish finder.