Fish Finders

5 Best Fish Finders Under $300 To Buy in 2021 Review Buyer’s Guide

What is the best inexpensive fish finder?

Fsh finder is an excellent tool that has introduced many new dimensions to professional and recreational fishing. Fishfinder can measure depth, contours, identify the structure, and locate the fish underwater enabling you to hunt more precisely and quickly. and costs from a few hundred dollars to a few thousand dollars. These models are developed for professional purposes.

For recreational purposes, you can buy some inexpensive models that come as low as under $300. These models are excellent for boat, kayak, or ice fishing and can multiply your fishing fun.

We have reviewed the five best fish finders under $300 that can serve the purpose of recreational fishing.

5 Best Fish Finders Under $300

1. Humminbird 410150-1 PIRANHAMAX 4 Fish Finder

Best Fish Finders Under $300 To Buy in 2021 Review Buyer's Guide
Check Price on Amazon

If you are looking for the best entry-level fish finder, then Humminbird PIRANHA MAX has many reasons to be considered. Having many cool features like dual-beam Sonar, Fish ID, wider backlight display, and Fish alarm, it is one of the best fish finders under $300.

The best part of this fishfinder is its bright, clear, and broader display. With 480VX272H pixels resolution and a 4.3’’ screen, it boasts unmatched readability and display qualities. Moreover, the LED backlight makes the view brighter, making it useful in sunlight and low light conditions.

It features a dual-beam SONAR module, which works on two different frequencies, 200 kHz and 455 kHz. As it has a dual-beam Sonar and not a dual-beam Sonar Plus, it can utilize a single beam frequency channel at a time. For 455 kHz, it uses a conical beam of width 216 degrees, while for 200kHZ, it uses a beam of width 28 degrees. This fish finder’s depth capability is 183m meters or 600 ft, which is an excellent figure for a fishfinder under $300.

Fish alarm, depth alarm, and battery alarm are available in this model. You can select different options for depth and size of fish, and it will sound the alarm when corresponding to the specific settings. The FISH ID feature is another fantastic feature of this device. Fish icons will appear on display for the targets that are interpreted by the fish finder as fish. Moreover, it shows clear bottom images and also different color patterns in response to different return strengths.

Having a waterproof rating IPX7, you can confidently take it outside as it can tolerate rain, splashes, and immersion in water. It comes with a tilt and swivels mount so you can adjust it to the perfect viewing angle.

Pros & Cons

  • Dual Beam SONAR module
  • 600 feet depth capability
  • FISH ID feature
  • LED backlight 4.3-inch display
  • User-friendly interface
  • No GPS and mapping

The Humminbird PIRANHAMAX does not support GPS and mapping features like expensive models; it is still an excellent recreational option. User-friendly interface, dual-beam SONAR, and bright display are some of its features, making it the best fish finder under $300.

2. LUCKY Portable Fish Finder to Buy in 2021

Best Fish Finders Under $300 To Buy in 2021 Review Buyer's Guide
Check Price on Amazon

Lucky Portable fish finder is an excellent option for recreational fishing. This unit can find fish, measure the depth, contours, and temperature of the water. It can be sued in both slaty and freshwaters and is an excellent option for boats and kayaks.

This unit has a 2.8-inch LCD with three color options red, blue, and grey. It is an ordinary screen that can only serve recreational purposes, and you can not use it on professional tours.

Furthermore, it works on a single-beam frequency of 15 kHz and having a cone angle of 90-degrees. This fish finder’s depth capability is 147 ft, and therefore you can use the unit in shallow waters.

It’s a light-weight unit that is portable, and you can easily take it anywhere with you. Keep in mind that this transducer is not waterproof and not highly resistant to water.

This fish finder’s wireless operating range is 328 feet, which is an excellent range for a fish finder under $150. It also features a rechargeable battery, which makes it a reliable option.

Pros & Cons

  • Affordable
  • Light-weight
  • 125 kHz frequency
  • 328-feet wireless range
  • Lacks GPS
  • Small screen-2.8 inches

Lucky portable fish finder lacks advanced features likE GPS technology, a large high-resolution screen, and a dual-beam transducer and can only be used for amusement and recreational fishing. The best thing about this fish finder is its low price, making it affordable for many enthusiasts.

3. JOYWEE FF688C 3.5″ Phiradar Color LCD Boat Fish Finder

Best Fish Finders Under $300 To Buy in 2021 Review Buyer's Guide
Check Price on Amazon

JOYWEE FF688C is another inexpensive fish finder that is equally useful in different types of waters like sea, rivers, and lakes. It features a 3.5-inch wide display that is brig and clear, having an anti-reflective screen. With a resolution of V320XH240 pixels, it produces sharp and clear colored images. Therefore it has unmatched screen readability in this price range.

Moreover, it features a dual-beam sonar with frequencies 83 kHz and 200KHZ.itdislays all the underwater bottom terrains like grass, rocks, and ground. Furthermore, it supports 100-level sensitivity settings and a multi-level depth range. It can give back to back readings between a depth of 2 feet to 1000 feet with 1/10 precision.

The best part of this fish finder is that you can choose from ten different languages. It makes it an excellent device for a wide range of users belonging to other cultures.

The maximum output power is 800 watts, and there is also a battery indicator on the screen that keeps you informed about the current status of the battery.

Pros & Cons

  • Dual-beam SONAR technology
  • Excellent readability
  • Multi-level depth
  • Battery indicator
  • No GPS feature
  • Relatively small screen

JOYWEE FF688C is an inexpensive fish finder that features a user-friendly interface and bright colored display. Multi-lingual support and usability in different waters make it a versatile fish finder under $300 to Buy 2021.

4. Venterior Handheld Fish Finder, Portable Fishfinder

Best Fish Finders Under $300 To Buy in 2021 Review Buyer's Guide
Check Price on Amazon

Venterior Handheld Fishfinder is a portable device with a transducer that can measure the depth, identify the underwater structures like weeds, rocks, and sand, and accurately identify the fish location.

This affordable model comes with a round transducer with 125 feet long cable. It can scan down upto 328 feet below the transducer. It uses a single frequency beam with a cone angle of45degrees.

Moreover, it has a user-friendly interface and straightforward controls. It can save the settings when you turn it off. Furthermore, you can select from five sensitivity levels according to the depth of water.

It comes with a black and white screen, which is typical for such cheap fish finders. Moreover, it has a backlight that enables you to use in low light situations. It also has a fish alarm feature that rings whenever it detects a fish. It shows the length of two units meters and feet.

The best thing about this fish finder is its two-year warranty that is provided by the manufacturer. Moreover, they also offer tech-support, which makes it an excellent reliable option.

Pros & Cons

  • Highly affordable
  • Lightweight handheld unit
  • 100 meters depth capability
  • Two-years warranty & tech support
  • Single-beam frequence
  • No advanced features

Venterior handheld fish finder is an excellent option if you love fishing every weekend. This reliable model can scan the schools of fish deep down in the water and be used in the sea, rivers, and lakes.

5. Deeper PRO+ Smart Sonar

Best Fish Finders Under $300 To Buy in 2021 Review Buyer's Guide
Check Price on Amazon

Deeper PRO+ is a member of Deeper’s groundbreaking portable smartphone Fishfinders. This new technology has brought a revolution by developing castable portable fish finders that can easily be used with your tablet or smartphone.

Measuring 2.5in diameter and weighing 2.5 oz is exceptionally portable, enabling you to take it anywhere you want. Moreover, you can easily cast the unit from the rod, and it will show you the beat fishing schools underwater on your smartphone or tablet. It is not essential to have a boat; this fish finder will serve the shore fishing purpose.

It is compatible with iOS and Android systems; you can interact between your transducer and phone via a Deeper app. This app gives you many other features like the weather forecast, fish notes, and solunar forecast.

It boasts reliable connectivity through WiFi with your phone or tablet. It can create its own WiFi field within a range of 330 ft or 100 meters, which is simply amazing. Moreover, this connection is much more stable and robust than a Bluetooth connection.

It can scan deep down upto 260 ft with a target separation of 0.5-inch target separation.

The dual-beam SONAR operates on two frequencies, 290 kHz and 90 kHz, having a cone width of 15degree and 55 degrees, respectively. These wider cones provide a detailed and clear picture of the underwater view. It can send a maximum of 15 scans per second, which is excellent for a Fishfinder under $300.

Another fantastic feature of SONAR Pro Plus is the bathymetric maps-thanks to built-in GPS. You can create your underwater maps from shore and boat and can view these maps later on.

Pros & Cons

  • Portable and castable
  • Best for boat fishing, ice fishing & shore fishing
  • Built-in GPS
  • Solid WiFi connectivity
  • Connection interruptions while boating

Deeper PRO+, with its extraordinary features, offers excellent value for the money. It is the best fish finder under $300 that provides a Dual-beam SONAR, deep scanning, rock-solid WiFi connectivity, and GPS technology, which means you won’t regret it if you go for it.

Buyer’s Guide

Fishfinder is an exciting tool that has made fishing much more productive and added a lot of fun to it. A variety of fish finders is available in the market, and it’s not easy to choose a single model for you. This guide contains all the essential points one must keep in mind before buying a fish finder.


A transducer is the most critical part of a fish finder because it is responsible for sending beams that return to it. It translates these signals to provide you the detailed information about the underwater structures.

Transom mount transducers are handy and are easy to mount. Most of the fish finders come with this type of transducers. For professional and demanding tasks, thru-hull mounted transducers are also available, but the installation is complicated.

You will find single, dual, and multiple frequency transducers, from which dual-beam sonar is most common. They work on different frequencies ranging from 90 kHz to 200 kHz. The cone angle is directly related to the frequency beam. The higher frequencies show up more details and perfect for the shallow waters, while small frequencies will work great in deep waters.

It is recommended to buy a fish finder featuring dual beam sonar as it will offer both small and large frequency options making it useful in both deep and shallow glasses of water.

Display Quality

The size and resolution of the screen is another crucial factor to consider when buying a fish finder. The screen resolution is the number of pixels your screen has. Higher the number of pixels higher the screen resolution. The quality of images is entirely dependent upon the number of dots your screen has.

For example, many inexpensive models come with a screen resolution of 240v x 160 h, which is the minimum resolution required to get some readable details. As the resolution increases, the images become sharper, more detailed, and super crispy. Fishfinders with higher resolution screens are expensive, and they are specially designed for professional purposes.

The reflective screens are another big problem, decreasing the readability in bright sunlight. Anti-reflective coatings on-screen are best to go out on sunny days. The backlight LED also improves the readability of the display and is ideal for low light conditions.

The size of the screens is measured diagonally and is an essential feature of the fish finder. It ranges from 3.5-inches to 8-inches. The inexpensive and portable units have smaller, while bulky and expensive units have larger screen sizes.

GPS and Mapping

GPS and mapping is an important feature of any quality fish finders. Many inexpensive models do not have GPS support, but today, many brands have equipped the fish finders with GPS technology. These models are available at affordable prices.

The GPS feature allows you to create maps of the underwater terrains, send the locations, create and save waypoints. This information is kept and can be used in the future. You can also navigate easily and can download the pre-designed maps to get the ebay information available.

Transducer Material

Transducers are available in different materials and each of them serves a unique purpose. The plastic transducers are good if you are using the fish finder for recreational and gaming purposes. These transducers come with a transom mount and are easy to install.

Professionals need a transducer featuring an in-hull mount or thru-hull mount, which means you will need plastic housing for a metal or steel hull. A bronze housing is perfect for a wood hull.

These transducers are not easy to install and you can only install them if you have proper guidelines regarding the mounting process.

Angle of Beam

The beam’s angle depends on the transducer’s frequency and can range from 9-degrees to 60 degrees.

As the beam goes down, it becomes wider and covers a larger area but sensitivity decreases. Some expensive Fish Finders come with transducers that can emit multiple cones at multiple depths giving you extra details.

It is better to get a transducer that can emit a beam between 16-degree to 20-degree-as 20 degrees is a sweet spot for many anglers.


Power is an important feature that tells the accuracy and sensitivity of your device. A fish finder with high wattage will scan deep, and gives quick details as compared to the one with low wattage.

For example, a unit with 100 watts at 50kHz can scan down upto 400 feet; from here, you can know how much power unit you should buy. The expensive units have more than 1000 watts and can scan deep down, for bringing precise, quick, and brief details.

Water Resistance

Water-resistance ability is vital for fish finders to withstand the water environments and rainy seasons. T water-resistant fish finder is less prone to damage if it gets in contact with water.

There are some water-proof units also available. Most of these units have a waterproof rating of IPX7 and can bear the rainwater, water splashes, and quick immersion in freshwater.

Smart Features

Some advanced fish finders have smart features like Bluetooth and WiFi connectivity. These units can be connected to your phone or tablet, and you can view the details on the screen of your phone and tablets. Many of them have downloadable apps that offer specific features. You can analyze and interpret the data on your phone while sitting in your home.

User-Friendly Interface

A user-friendly interface is essential, and it determines how effectively you can use your device. Easy readability, straightforward controls, and color contrasts are some important features that make it easy to use a fish finder.

For example, fish ID is a feature that shows the fish icons on your screen; it interprets any structure as a fish. It shows these icons in variable sizes so that you can ignore the small hunt.


After discussing all the features of a fishfinder, a question arises: is it a reliable device or not?

The well-known brands offer warranty and tech supports, giving you the confidence that you are investing in a long-lasting device. Any unit, cheap or expensive, with a long warranty, is reliable and will last more than any other unit with a short warranty period.

Wrapping Up

All the fishfinders mentioned above are inexpensive and can be used in many water environments like sa, rivers, and lakes. These fish finders do not have advanced features like the expensive models; they still offer robust performance at a smaller level. you need to be careful before buying a fish finder because every model works in different environments in a different way.

Our top-three packs from the list are

  • Humminbird 410150-1 PIRANHAMAX 4 Fish Finder for dual-beam sonar and IPX7 waterproof reading
  • JOYWEE FF688C 3.5″ Phiradar Color LCD Boat Fish Finder with dual-beam frequency module and depth capability of 100 feet, best for deep water fishing
  • Deeper PRO+ Smart Sonar compatible with iOS and Android, WiFi connectivity, and built-in GPS
Back to top button