Best Fish Finder For Kayaks 2024

Fish Finder For Kayak Under 100
4.9/5 - (8 votes)

Reading the best fish finder for kayaks under $100 reviews is a great way to find the best features, best brands, and best prices when buying a fish finder.

There are many different types of fish finders for kayaks, but not all of them work well underwater.

This article will review some of the best budget fish finder for kayaks that won’t break the bank and will get the job done right!

Best Budget Fish Finder for Kayaks in the Market

1Humminbird PIRANHAMAX 494/100Check Price
2Lucky Handheld98/100Check Price
Deeper Smart92/100Check Price
4Lucky Portable90/100Check Price
5iBobber97/100Check Price
Comparison table – Best Budget Fish Finder

#1 Humminbird PIRANHAMAX 4

Humminbird PIRANHAMAX 4

Humminbird Piranhamax 4

Key Specs:

  • Brand Name: Humminbird
  • Color: Black
  • Dimensions: 3.6 x 3.9 x 6.8 inches
  • Weight: 2.0 pounds
  • Screen Size: 4.3 Inches
  • Connectivity technologies: Ethernet

Humminbird PIRANHAMAX 4 is one of the best fish finders under $100 on the market today. It has an underwater camera and integrated high-intensity LED spotlight that casts light as deep as 320 to 600 feet.

With a GPS waypoint map, this fish finder allows you to mark your favorite spots and save them for future use.

The Humminbird Piranhamax 4 is a dual-beam fishfinder that offers the best of both worlds with an easy-to-use analog-style interface and high-performance digital sonar.

With its clear and bright display, you’ll easily locate fish and underwater structures. The dual frequency sonar system provides accurate and detailed information, while the compact size makes it easy to mount on your boat.


  • Enhanced Fish Detection: The advanced technology of this fish finder provides accurate and detailed information about fish location, depth, and movement.
  • Clear Display: The high-resolution color display ensures a clear view of underwater structures, making it easier for anglers to identify potential fishing spots.
  • User-Friendly Interface: With its intuitive design, this fish finder is easy to operate, even for beginners. The straightforward menu navigation allows for quick adjustments and customization.
  • Depth Capability: The PiranhaMax 4 offers a maximum depth capability of 600 feet, making it suitable for a variety of fishing environments, from shallow streams to deeper lakes.
  • Portable and Durable: Compact and lightweight, this fish finder is convenient to carry and can be easily mounted on a boat or kayak. Its rugged construction ensures durability and reliability in harsh weather conditions.

Our Recommendations

Humminbird PIRANHAMAX 4 Fish Finder is a game-changer for fishing enthusiasts. Incredible accuracy and easy-to-use features make it a must-have. Is the ultimate fish finder for serious fishermen!


  • Easy to use.
  • Easy to install
  • Dual Beam Sonar
  • Included a transducers
  • Automatic night fishing mode
  • Larger display than other models.


  • Battery not included.
  • You have to buy an external battery.

💡 Would you like more information about this product? ➡️ Humminbird Piranhamax 4

#2 LUCKY Portable Handheld

LUCKY Portable Handheld

Lucky Handheld

Key Specs:

  • Brand Name: Lucky.
  • Screen Size: 2.9“
  • Sonar: 200 kHz
  • Max Depth: 328 feet
  • Power Source: Battery Powered

This is a great fish finder for a kayak because the best thing about it is that it is very portable. It can be used as a hand-held device, which means you do not have to install anything.

It comes with 26 feet of wired operating distance. Has a 45-degree beam angle and 200Khz in detection power. It can detect 328 feet in depth underwater.

The best part about this product is that you can also use it as sonar for your boat by simply attaching an air hose.

I recommend this product to anyone who wants a great portable fish finder for their kayak.

It’s also very portable so it’s easy to carry around on top of your boat or in case it falls overboard – preventing water damage!

Plus, this device comes with rechargeable batteries that charge easily via USB cable, making them last longer than some other models available today.


  • Lucky Portable comes with an updated underwater display.
  • 2 User Modes (Transducer and Simulation).
  • Portable handheld design with a wristband for easy carrying.
  • Uses Rechargeable Batteries which charge via a USB cable (Included). This means you can easily replace the batteries if they run out while on your kayak or on land.
  • Offers incredible accuracy for various water depths. The reviews should mention how accurate this device is so you know you’re getting a great product at an affordable price!
  • Can be used for both fresh and saltwater.
  • Suitable for most types of boats, including kayaks.
  • Includes a variety of mounting options to best suit your needs.


  • Excellent for kayaks, canoes, and other small boats.
  • Easy to install and use.
  • Finally, see what’s under the water!
  • Catch more fish than ever before.
  • Waterproof.
  • Has 328 feet of depth capability.


  • Not work in the rain.

#3 Deeper START Smart

Deeper START Smart

Deeper START Smart

Key Specs:

  • Brand Name: Deeper.
  • Screen Size: N/A
  • Sonar: Castable Wi-Fi
  • Max Depth: 165 feet
  • Power Source: Battery Powered

If you’re looking for the best value fish finder for a kayaks under $100, I found a really good one that is perfect if you don’t have a ton of money to spend, but still want something high-quality.

This Deeper smart fish finder is made with a durable and sleek design so it’s nice and tough in the water.

You can easily see what’s going on when out on the water, which is essential when trying to catch some dinner! It also comes with an app for your smartphone so you can see what’s under the water without having to look at your device.


  • The Start smart fish finder is portable and has a rechargeable battery.
  • It is easy to carry around in your backpack or even pocket.
  • Deeper has developed a smart sonar that uses the latest technology to give you accurate readings on depth, temperature, and fish location.
  • With a max depth of 165 feet (50 meters), it will help you catch more fish than ever before!
  • Work with its own Wi-Fi system without losing your mobile data.
  • Every scan is automatically saved to the location with the date and time.
  • Work well with automatic night fishing mode.
  • Easy to use, no need to worry about complicated settings or instructions.


  • Easy to use.
  • Lightweight.
  • Easy to install apps.
  • Has own Wi-Fi system.
  • Battery Included.
  • Smart technology.
  • Has night fishing mode.


  • Need an Android or iOS device to operate.

#4 LUCKY Portable

LUCKY Portable

LUCKY Portable

Key Specs:

  • Brand Name: Lucky.
  • Screen Size: 2.4“
  • Sonar: 125 kHz
  • Max Depth: 147 feet
  • Power Source: Battery Powered

The best cheap fish finder under $100 is this LUCKY portable one. It does not matter what type of fisherman you are (bass, trout, salmon), this unit will be perfect to meet the needs of every angler.

Whether you like deep-sea fishing or merely cast your line once in a while from the shores, COASTERS is just right for tracking down any fish within 147 feet of your boat.

The Lucky Fish finder transducer controls how many details are shown on the display.

You can set up the sensitivity from 1 to 10. The more sensitive it is, the more detailed it can detect. An alarm will sound when the portable fish finder detects fish corresponding to the alarm setting.

The best things about it are that it is dependable with a 2.4″ TFT LCD color screen so good visibility won’t ever fail you when casting out your line again- no worries there!

Secondly, it is not just limited to saltwater fishing. It also works best for freshwater, too!

Also, you can go to various types of fishing such as kayak fishing, ice fishing, river fishing, sea, offshore, and night fishing.


  • You can set up the sensitivity from 1 to 10. The more sensitive it is, the more details are shown on the display.
  • 2.4-inch TFT LCD color display.
  • An alarm will sound when the portable fish finder detects fish corresponding to the alarm setting.
  • It can distinguish the large, middle, and small sizes of fish in a certain water area.
  • Four different units from the menu.
  • Tie the fishing line to the hole of the sonar sensor.
  • Cast it into the water and wait for catching fish!
  • Included rechargeable battery with a USB cable for charging.


  • Easy to use and lightweight
  • Various ways to use
  • It can detect sensitivity
  • Support around 196 feet wireless.
  • Has 2 fish attractive lamp
  • Included USB cable for charging.
  • The sonar sensor is waterproof.


  • The fish finder isn’t waterproof.

#5 iBobber Wireless Fish Finder by ReelSonar

iBobber Wireless

iBobber Wireless

Key Specs:

  • Brand Name: iBobber.
  • Screen Size: N/A
  • Sonar: 200/455 kHz
  • Max Depth: 135 feet
  • Power Source: Battery Powerd

The iBobber Wireless Bluetooth Smart Fish Finder by ReelSonar is the most starter fish finder you can buy. This smart fishfinder syncs with your iOS (Apple) or Android device to provide accurate sonar readings down to a depth of 135 feet.

The ReelSonar uses patented sonar fish identifier technology that allows you to identify any species of fish on the screen as well as their size and color. Also, compatible with any iOS or Android device and comes in a variety of colors.

This Wireless Bluetooth Smart Fish Finder is one of the most wireless, smart fishfinders. It combines GPS with sonar to provide depth-tagged fish icons color-coded by size on a contour map of your water bed.

The ReelSonar will also tell you the date and time you caught that trophy bass (That’s cool)!

It has a rechargeable battery that lasts for 10+ hours of use and has a charge status indicator light so you know when it’s time to recharge.

The two snap swivel connections allow for use as a handheld or a trolling motor mount.


  • It has 2 snap swivel connections that allow it to be used as a bobber or as a remote fish finder.
  • This wireless fish finder syncs with your iOS (Apple) or Android device to provide accurate sonar readings all the way down to 135 feet.
  • 100% Free apps available for iOS and Android users.
  • Comes with Bluetooth Smart sync up to a distance of 100 feet.
  • Has optional social media sharing features.
  • Automatically record the GPS coordinates of every fishing spot.
  • Color-coded fish icons show you at a glance how deep the fish are.
  • Set up to 3 alarms that will alert you when a strike is detected or when a fish has been hooked.
  • Track your catches and locations on an interactive map with our trip log feature.


  • Easy to use and lightweight
  • Interactive mapping
  • Easy-to-install apps
  • Has Bluetooth Smart sync system
  • Well-portability and flexibility
  • Included the Lunar calendar and weather
  • Included USB Charger
  • Has fish alarms


  • Not found yet

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Our Video Review: Best Fish Finder under $100

Buying Guide: Consideration Before Purchasing a Fish Finder

A fish finder is a Bluetooth, wireless, or GPS device that is used to find fish underwater.

Not only can it tell you the depth and water temperature, but it also has a sonar system that emits an electromagnetic signal to search for fish below.

You can find one of these fish finders in any price range from under $100 to several thousand dollars.

We’ve created a list of important factors to consider when purchasing a fish finder under $100. Here, are some things you should know before buying a fish finder.


Depending on what model you buy, the price will range from under $100 to higher. So you must know what you are getting into.

Generally, you should expect to pay a few hundred dollars for the device and one or two transducers, depending on the model.


Fishfinders are typically designed to be worn on a harness or around the neck. Generally, there are three different sizes of transducers: small, medium, and large.

Small transducers are just under 3.5 inches in length, medium transducers range from 4.5 to 8 inches and large ones measure 8 to 13 inches.

With all of the features that these transducers offer, it is important to make sure that you get the right size for your needs.

Battery Life:

Buying a fish finder with long battery life is preferable. A long-lasting battery is important so that you don’t have to change batteries every couple of days.

This will also prevent you from having to come back to the fish tank when your battery has run out.


A good fish finder will have a lot of features. These features include; live video, sonar detection, depth finder, target imaging, and more.

You can also browse various online fish finder reviews to make your buying decision easier.


Most fish finders have a warranty. Some might have a year warranty and others have a 2-5 year warranty. Make sure you research this policy thoroughly.

Typically, a warranty is a great option for your next fish finder purchase, as it gives you peace of mind when it comes to purchasing.

In case something should go wrong with the fish finder, it has a warranty to support you.

Auto Setting:

If you don’t know how to set a fish finder, you’ll be hard-pressed to fish with this device.

Having a large database to choose from can help you when selecting the settings that are best for you.

For example, you could choose the auto setting that allows you to start fishing by just pointing the device toward the current’s depth.

You may want to adjust this according to the fish you are targeting.

Which is better: handheld or waterproof fish finders?

A handheld fish finder is easy to use and less expensive to purchase, but they are generally not waterproof.

A waterproof fish finder is more difficult to use because it has to be connected to a long power cord, or batteries that need replacement often.

They are also more expensive since they have the battery case built-in and have a complete line of fish finders, including Depth Finders, Sonar Fishfinders, and Vibrating Seat Depth Finders.

Just like with many other products today, handheld and waterproof fish finders both have their advantages and disadvantages.

The main difference between the two is that a waterproof fish finder will have a display screen that can be easily removed from its housing for underwater viewing whereas a handheld unit will usually just be a conventional fish finder.

This can be good for durability, but it also makes the device heavier and less durable than waterproof models.

What Features Do You Want To A Fish Finder?

First, think about what features are important to you. For example, if you are a novice angler, you probably want to start with a device that only has an on/off switch for underwater functioning.

With most devices, a button on the side of the unit can be used to toggle between day and night mode.

Or, if you are an experienced angler, you can use the keyhole touch panel to control the functions.

FAQs: People Also Asked

What are the best fish finders under $100?

Humminbird PIRANHAMAX 4 is one of the best fish finders under 100. It has all of the features that you would expect from a premium unit, including dual beam sonar technology, a down imaging system, wireless, and multiple functions to help with positioning.

How Much Should You Spend For a Fish Finder?

You should know that most inexpensive fish finders have less resolution than more expensive ones. If you are just getting into fishing, this shouldn’t matter since you probably won’t be targeting monster fish. As an experienced angler, however, you will want to look for a more durable and reliable fish finder that will last for years.

What Type of Fishfinder Should You Buy?

There are several types of fish finders available. These include depth finders, sonar units, and vibrating seat depth finders. The depth finder is the least expensive and should be used as a primary device. This unit detects the presence of fish below by sending out sound waves. These sounds bounce back into the fish finder, showing you the exact location of the fish. So, you should buy the type of fishfinder which fulfills your needs.

How do you choose a good fish finder under $100?

It is important to find a good fish finder under $100 because if you have a less-than-ideal device it could lead you in the wrong direction while fishing. This means that while fishing on a budget, you should consider what features are available with your purchase. To summarise, you should choose a good fish finder that fulfills your needs on your budget. It should be durable and reliable to last for years.

Do fish finders on kayaks work?

Yes, they work! Fish finders use sonar to send out a sound pulse and then track the return signal to identify objects under the water. They come in both portable and mounted versions and can be helpful in finding fish, mapping the bottom of a lake or river, and locating obstacles underwater.


Buying the best fish finder on a budget is a great way to get some fresh, local seafood, especially if you are an avid outdoorsman.

No matter the price, every fish finder can be beneficial. It’s important to do some research and shop around to find the best fish finder.

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