Things to Look for When Choosing a Fish Finder | Things Should Know

A fish finder is the virtue of technological advancement. In ancient times then there were many natural signals which the Fisherman’s used to use to detect where the most fishes are. But now through technology. A device can tell us that accurately and even with the amount. Which is incredible. So, having a fish finder is convenient for a fisherman or any enthusiast. It increases the chance of getting fishes. Today you are going to read our complete article of things to look for when choosing a fish finder.

You do not have to waste your time by waiting for when to catch the fishes and where. The fish finder will do it for you. And using a fish finder is very easy too. If you want to save your time and catch fishes from where they are then this device is mandatory for you. Now before buying it there are lots of categories of the fish finder. You should know about their functionality first then purchase according to your need. That is why we are about to share things to look for when choosing a fish finder.

What is a Fish Finder? Look for When Choosing a Fish Finder

A fish finder is an electronic device that can detect fish underwater by using the sonar system. The sonar system works by mirroring the sound. The device sends electronic sounds to the water. And where the sound gets obstacles it shows it digitally to the monitor. That is how you can monitor the placing of the fishes.

Not only the fish position, but you can get information about the depth of water, things under the water also the bottom of the water information too. The graphical representation of the signal shows the exact point of the fishes and other things. Which is accurate almost every time. And using the device is very easy. All you have to do is set up the device properly.

How does a Fish Finder work?

Mainly a fish finder works by using the sonar sensor. It is the only information collecting device of the machine. And knowing that how the fish finder work will help you to use the equipment better. And the sonar sensor uses sound waves to collect data from underwater. The head of a transducer delivers this signal to the water and makes the sound waves. And the same device collects the data too.

The sonar system sends sounds in two-mode infrasonic and ultrasonic. After sending the sound signal the device can detect the obstacles it got and the ratio of reverse sound. And the transducer can detect the data and send the data to the monitor to show you like graphical art. So that you understand more easily. That that is the basic operating system of a fish finder.

How to read a Fish Finder?

There is a screen included with the fish where you can check the graphical chart about the placement of the fish. Some brands are also allowing you to connect your mobile phone with the sensor. So, you can see all the necessary things directly on your phone. Which is very convenient and useful? The device connects via Bluetooth or WIFI. Here are some of the steps to how you can use and recognize the fish finder.

Here are few steps on how you can read the Fish Finder:

Identifying the Fish

The monitor of the fish finder shows the placement of fishes clearly on the monitor by graphical representation. You have seen that and understand where the fishes are and what is underneath the water.

Fish Icons

To make your understanding process easier. They have included a fish icon on the monitor graphical representation. So that you can easily differentiate between fishes and rocks. And also detect the depth.

Fish Arches

Because of the signal of a fish finder gets by a transducer. That is why it picks every obstacle. That’s why sometimes you get similar icons like fish but they are not. That is why you should notice the aches with the fish icons. And by the time you will get the thing.

Analyzing Fish Size

You need to understand the fish size. The monitor doesn’t show the accurate size of the fish. That is why you have to notice the aches. The fish size depends on the arch size. The fish icon size remains the same. You can confirm the size of the fish by seeing the thickness, length, and width of the arch.

Fish Arch Length

They are also not accurate every time. Because the signals get send by the transducer and collect by the same device. That is why there is a delay behind the time. If you see a bigger long line that doesn’t mean it’s a big fish. It happens because of the time interval. While the signal was sending the fish was moving slowly that is why the movement got recorded in the signal. And it shows it to the monitor as a bigger line.

But that doesn’t mean it’s a bigger fish. On the other hand, if a fish is moving fast it will catch less data on the sensor and will show a little line wheatear it is a bigger fish. That is why you have to make sure you are judging by seeing everything about the lines. By the time it gets better.

Fish Width

So, what is the solution to fish length? Yes, the solution is the width of the fish. The length of the fish might get miss read but the length of the fish should be perfect. That is why you should consider the width of the arches. Wider arches mean it is a bigger fish.

Types of Fish Finder

There are different types of fish finders available in the market. They all the different purposes and have different features on them. But you should understand those features and know your purpose and picking features according to that. That is why we have talked about different types of fish finders is available at the market right now.

Are you looking fishfinder?


This is the most basic fish finder in the segment. It has a solid build quality and good economic zone coverage. It has a good amount of bezel on it, with a good amount of screen size. This is best for a place like a lake or a pond. This is the most basic and affordable type of fish finder in the market.

GPS Combo

By the name you can understand what it stands for. It has included a GPS with the sonar sensor. For that reason, you can get navigation on it too. If you have a medium-size boat and want more configuration then this fish finder can be a good pick for you.


This type of fish finder is the strongest one. They have a high-frequency sonar system. Which have a bigger range. Usually, it gets used in the deeper water. It can collect data from very deep and can run in different situations. Network capability is also strong. You will get very clear and strong data from this fish finder.


These are the most equipped fish finder. They include lots of features on the fish finder. You will get location, radar, video, FM, etc. features all in one fish finder. Also, the wireless capability. This is for the fancier side. If you need a fish finder that can get used for other mentioned reasons then it will be best for you.

Portable Fish Finder

This type of fish finder comes in a more compact form factor. It has various mounts included with the box. It is perfect for those seasonal fishers and those who fish in a compact place like on a kayak or a smaller boat. This comes with a display, some mount, and a transducer. They are very easy and quick to set up and detach too.

Things to look for when choosing a Fish Finder:


the transducer is the most important part of the fish finder. It cast all the signals and receives them. That is why being strong is very important. The transducer has to go under the water and cast a signal underneath that. After sending the signal it can detect the obstacles of it and can make a 3D model out of it. Companies add various mounts with the transducer because it goes underwater. That is why having a compatible rig is important.

Because the transducer is the most important part of a fish finder so make sure these things are available in the transducer or what are the things you should consider before buying.

Transducer Material

Transducer material matters a lot in terms of the kind of boat you are using. Otherwise because of the boat material you won’t be able to use get accurate information from the wrong kind of material transducer. For a light use or beginner or somebody with a smaller boat. For them, a plastic transducer will be good enough. They can cast and receive data without any issue.

Usually, plastic transducers come with various kinds of mounts. But most of them are built with plastic. And if you have a bigger boat then a metal transducer will be perfect for you. They can cast stronger signals than plastic. Also, the mounts with the transducers come with a metal mount. They have a stronger and permanent attachment system.

Personal Needs

Before buying any tech device, knowing your needs is very important. Otherwise, you get very confused about which one to pick. In terms of the fish finder, there are various types of fish finder available in the market. Everybody thinks the more feature the better.

Well, it’s not true always. To have more features you have to pay more money. And eventually, you see you don’t need those high-end extra features. Then you realize you have paid much for this. So to avoid this we recommend you to understand your need first then choose according to that.

Screen Color and ResolutionLook for When Choosing a Fish Finder

Now the color display has become standard in fish finders. So, you don’t have to worry about the black and white screens. Color displays are brighter and easier to understand. Otherwise, you won’t be able to see the screen in brighter sunlight. For that purpose, a color display is always better.

In terms of resolution, which stands for the number of pixels are available on the screen. The screen resolution affects the quality of output on the screen. To have a clear screen 320 x 320 resolution is the minimum for a display. It will produce more sharp and brighter colors on the display. We recommend going at least with 240 pixels x 160 pixels resolution. Because the screen resolution varied according to the price. Under this resolution of the screen, you will find it hard to read and understand.

GPS and WiFi

It is great to have this wireless capability in a fish finder. It makes your job very easy. With the GPS service, you can locate your position and save it. You can also get directions to the return point. It saves your additional cost for a GPS.

Wi-Fi or Bluetooth connectivity on a fish finder is also very useful. You can wirelessly connect to your mobile phone using the apps. It makes the process more convenient and easier to use. You can save those previous data on your phone too.

Fixed vs Portable Fish Finder

Now it depends on your use and where you are going to use it. If you are a seasonal fisher and use a small boat or kayaks for fishing then a portable fish finder will be perfect for you. You can attach and detach them anytime you want. They are very easy to use too.

But on the other side if you have a havier big boat the pick a fixed fish finder will be fine. because they come with more sturdy mounts. Which attach the transducer better? And you don’t need to remove them often.

Final Thoughts

So, there were the basic categories of a fish finder. We have mentioned all the necessary things you need to know to Look for When Choosing a Fish Finder before purchasing one. And to find out the best fish finder check out this article here. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to we earn from qualifying purchases, no additional cost to you. Learn more.

Things to Look for When Choosing a Fish Finder | Things Should Know
Article Name
Things to Look for When Choosing a Fish Finder | Things Should Know
If you want to learn Things to look for when choosing a fish finder, you can visit our site.
Publisher Name
Publisher Logo

2 thoughts on “Things to Look for When Choosing a Fish Finder | Things Should Know”

  1. Pingback: Best Kayak Fish Finder 2021 | Reviews & Buying Guide | Fishers Hunting

  2. Pingback: Best Portable Fish Finder in 2021 | Reviews & Buying Guide

Leave a Comment

Your email address will not be published. Required fields are marked *