5 Best Portable Fish Finders For Your Next Fishing Adventure

Best Portable Fish Finder
Imagine this, you’re on a boat, excited to fish for the first time in a while. Determined with your heart set on catching big games, you cast your line. You are eagerly waiting for the first bite, but you tell yourself not to get restless. Patience is vital when it comes to fishing. Time passes by, but you remain positive. You are sure all this waiting will payback in the end. Another hour passes. And then another. Suddenly the day has already ended. You cannot help but feel disheartened at going back empty-handed. If you desperately want to avoid such an outcome, then it would be wise for you to invest in a fish finder.

Why you should buy a fish finder?

A fish finder is a necessary investment to avoid wasting too much time casting into areas with no fish.

However, with the vast range of fish finders on the market, choosing one out of a bunch can be quite challenging. This article will go over the 5 best portable fish finders, reviewing them in the process, to make the task more comfortable for you.

Top 5 Best Portable Fish Finders Reviewed!

In this article, we will discuss the best portable fish finders currently available on the market. We will be reviewing them on their features and their ease of use.
fish finder
This Garmin fish finder is regarded highly by users for its precision. It uses a Garmin CHIRP transducer available in both 77 kHz and 200 kHz. No doubts about the accuracy of its deductions as the unique CHIRP transducer repeatedly sends out a range of different frequencies to provide precise results. With greater accuracy, the displayed fish arches are not only sharper, but the identified targets appear more distinctly separated. This reduces the frustration of having to read dulled, unclear images.
Both the flasher style display and the standard fish finder display can be used with this device, making it suitable for even ice fishing or jigging. The Striker’s built-in flasher shows you the bottom of the fishing body, regardless of whether it is solid or muddy.
It will also show your jig or weighted bait, and the depth of fish as they swim into the sonar beam’s range. You can even use it to analyze the height of your jig being lifted and dropped and whether fish move closer or away from it, giving you a better understanding of how to cast.

The fish finder uses its high sensitivity GPS technology to precisely locate your present location while maintaining it throughout the waterbody’s surface.  Its marking feature allows anything from high activity areas to stumps and docks to be tagged for the future in the waypoint map.

The waypoint map can be used to mark, view, and navigate to these locations with certainty. Navigation has never been easier, with no option of getting lost.

It even has a speed measurement displayed on the screen. With this, you can make sure your boat is at the right speed for the fish you are pursuing—so no chance for another fish to pass you by. 

garmin striker portable kit
This is another Garmin portable fish finder. This one also features the Garmin CHIRP sonar technology. Available in both 70/200 kHz. The uniqueness of this transducer is credited towards the vast range of different frequencies it uses. Unlike regular transducers that make use of a single frequency, CHIRP emits and interprets several contrasting ones for a deeper analysis. This not only gives greater accuracy but also enhances target separation. Your target will not be able to pass you by with such precision on your side.
While the images are always in real-time, the patented Smooth Scaling graphics present undisturbed imagery when switching between different depth range scales. This device does not experience any lag.
It supports both the flasher style display and the common fish finder display. Both supported by a colored display. The good thing about multiple display modes is that you can use them to accompany different fishing forms.

The best situation to use the flasher display would be when you are jigging or ice-fishing. That aside, this flasher will not only show you the bottom of the water body but the height of jig when lifted or dropped. It will also show you if fish approach your bait or shift past it.

Its GPS and Waypoint Map make the navigation much more convenient. While the Gps feature efficiently upholds your position in real-time. The Waypoint Map allows you to mark down anything from fruitful positions and docks to stumps and vegetation. You can also check the speed of your boat on the screen.

It is a petite model, only 3.5-inches in size, with a keyed interface. This particular design comes with a portable carrying case. The kit includes a sealed, rechargeable battery and charger, a suction cup transducer mount, a kayak in-hull transducer mount, and a foam float, making it quite the lucrative deal. While I would have recommended it for the aspect of convenience alone, the other features elevate it to another level.

the lucky fish finder
The Lucky portable handheld fish finder gives approximate readings. The fish and bottom contour readout pinpoint the location of fish. This also identifies different sizes of weeds and the sand and rocks sitting at the bottom. With the extensive depth detection ranging from 3 to 328 feet, you will be able to locate any fish trying to sneak away beneath your boat.
Although it is considered the best portable fish finder when kayak fishing. It is versatile enough to be used with all of the popular fishing forms; offshore fishing, lake fishing, ice-fishing, you name it. It is suited to be used with any of them. The transducer comes with a 25 feet long wire and a removable transducer float. This will be needed if you decide to use it by floating it on the water’s surface. However, it is not limited to only that. You can even fix it onto your kayak if desired.
It supports multiple sensitivity modes. The benefit of different sensitivity modes is that you are able to choose the one that suits your preferences and the fishing environment that you are facing. One of these features is a fish school alarm. The fish finder will actually alert you if a big fish school is detected on its radar. So even if you are distracted or momentarily busy, you can be rest assured never to miss such opportunities.
It is powered by batteries, and though it provides 4-5 hours of continuous usage, it can be used for even longer if used alongside the battery saver mode. Besides these, it also has a back-lit mode function.
And if you are still uncertain about whether the product lives up to its claims, then you will be delighted to hear that it also comes with a 12-month warranty policy. So, even if you do find any faults or flaws in its performance, you will be able to get a replacement immediately.
reelsonar fish finder
The ReelSonar Wireless fish finder is a unique device that does not include any machine to display images at all. It puts a unique twist on traditional fish finders. By using Bluetooth technology, it relies on your phone screen to be the displaying agent instead. How it works is that it essentially comes as a small circular transducer, which does all the work a regular transducer does. Though instead of displaying the readings on the machine itself, it shows them on your phone screen through the app that accompanies it. You can sync it with your phone from a distance of 100 feet.
It has the best battery life on the market, lasting up to 10+ hours of continuous use, making it perfect for overnight fishing trips. You can even log about your trips mentioning the date, time, location number, and species of fish caught, and even about the fishing lure you used.
For people with more expertise about fish and their habits, the iBobber provides information such as temperature and even includes a lunar calendar to aid the determination of ideal fishing times, fish feeding times, and potential locations.
When the fish bite or latch onto your hook or bite your bait, the iBobber will notify you. This is beneficial for beginners who are just taking up fishing and may need a little extra help. However, if you are not too fond of such notifications and feel as though they take more away from your fishing experience, you can turn them off.
ricank portable fish finder
This fish finder is a compact and portable one, only 2.8-inches in size. Despite its size, however, it is still quite powerful. It uses a 90 degree 200 kHz angled sonar beam with a range of 2 to 120 feet. So while it may not get the job done in the deep sea, it is more than enough to be used on rivers and with kayak fishing, offshore fishing, ice fishing, etc.
But don’t let the seemingly short-range discourage you, as it is still precise enough to identify uneven terrain and water body contours. Weeds and rocks, as well as the size of the fish are also identified by it. Which is useful if you are only after bigger targets. But if you still want a deeper range, it is also available in 328 ft with 45-degree beam instead.
However, the operating depth is an impressive 650 feet, meaning the sonar can be quite a distance far from you or your boat. Therefore you will not need to constantly monitor it to make sure it is not crossing its range if the distance between it and the boat suddenly widens.
Through its color display and LCD screen, the RICANK fishfinder provides an attractive display to read images on. The color display makes viewing the screen easier in bright sunny locations, where reading the colorless dull screens for too long would strain your eyes.
It is powered with a 3.7V lithium battery and provides almost 10 hours of continued use. The battery is rechargeable, and it comes included with a charger. The long battery life is essential for a successful fishing trip. The last thing you would want is your fish finder shutting off and derailing your long-awaited fishing trip.
If you choose the one with a deeper range, you will get a battery-powered fish finder instead. This one will last for 4-5 hours, which is still decent enough for a single venture out in the waters.

Things To Consider Before You Buy a Fish Finder

While having a fish finder is excellent, you still have to interpret the results, pick the right bait, and catch the fish you are after. A fish finder is a tool that will help you, but you still required to put in the work. Moreover, before you get your heart set on the seemingly best portable fish finder for you, there are other things you should keep in mind.

1. Aim for one with a GPS:

In this circumstance, that very GPS function may as well be the only thing getting you home safe that night. But make sure to thoroughly investigate the accuracy of the GPS on the fish finder of your choice. You can easily do so by reading up on customer reviews.
In this circumstance, that very GPS function may as well be the only thing getting you home safe that night. But make sure to thoroughly investigate the accuracy of the GPS on the fish finder of your choice. You can easily do so by reading up on customer reviews.

2. Your Budget:

Not everyone wants to or has the means to casually spend hundreds of dollars over something that ends up neglected and not being used properly. In such cases, it is best to determine which fish finder compliments your budget and which features you can and cannot compromise on.
Surveying and comparing similar devices on the market with the key features in mind will allow you to get the best bang for your buck. If you plan to fish leisurely every once in a while, then it would not be wise to buy a costly and high-tech one.
Purchasing lots of fancy and professional gear would not be smart until you become more experienced. Moreover, it would likely be the best to start off with something less complicated, to eventually get used to it.

3. Choosing the Right Type Of Sonar Based On Your Needs:

Not picking the right type of sonar can quite negatively impact your experience. Worst case scenario, after buying the wrong kind of sonar, you cannot use it with the kind of fishing you partake in. Thus, rendering the unit useless to you. There are two types of SONAR; Down Scan and Side Scan. As its name suggests, the down scan SONAR sends its signals directly below the boat.
The Side Scan, on the other hand, sends out signals angled out in a fan-like shape to the sides of the vessel. If used correctly, the down scan will be able to provide greater accuracy to more profound readings. However, it can miss signals at the side of the boat and can cause blurry images if used in water bodies that are too shallow.
The Side Scan does not require the vessel to pass over the area of interest to generate a reading directly. It also has the least amount of noise pushing back, so images are more transparent. Sadly, it is not suitable for deeper waters, and the quality of images under a specific range will deteriorate.

4. Do not put your focus mainly on getting the cheapest option available:

I know it is easier said than done, but it is best to save up for the best portable fish finder available to you, rather than buying the cheapest one available. Specialty machines like fish finders can be expensive and can be unattainable at times.
However, often the cheaper ones will lack many key features and just lead to an unsatisfactory experience. There is also a big question mark on their accuracy and precision. In such cases, rather than helping you in your fishing journey, they will just set you back. So it is best to avoid them.

5. Putting Emphasis On the Wrong Feature:

What good is a speed meter to you when your main focus is on the highest depth perception? Or what use do you have for a wireless fish finder when you are specifically looking for a mountable one? We are not discrediting these features or calling them useless, but quite the opposite. These features are incredibly important, but to those who have a use for them.
If you do not require a particular characteristic, do not go after a product that is charging higher because of it. Do not go for units with an extensive list of specifications, but particularly seek ones out that cater to your needs alone. Not only will you potentially save some money in the process, but you will easily be able to navigate a less cluttered device.

6. Pay attention to the Wattage:

For most electronics, a higher wattage is a synonym for greater power. This is also applicable to fish finders. The best portable fish finders will feature higher watt readings. This may not be that obvious when buying one, but do check the website or at least the packaging, if you are buying one in person.
With less power, the signals sent out are slower, and this delay will cause small inaccuracies in the readings. Though you will have little need for a higher wattage if you only venture out to freshwater bodies. But for saltwater journeys, it is best to choose the most powerful one available to you.

7. The importance of proper resolution:

The display and resolution on your fish finder should also be one of your top priorities. Nowadays, like most screen-based electronics, fish finders also feature a color display. While black and white shows will get the job done for you, color displays make reading it much more manageable. They are definitely not on par with your phone screen, but when you are riding your boat on a sunny day, you will barely be able to read the black readings against the sun’s hard glare.
So, you will definitely thank yourself for getting a colored screen. Generally speaking, you should get one with at least 240 x 160 pixels. While even this will feel incredibly blotchy, it is better than nothing. So definitely prioritize proper resolution.

Frequently Asked Questions:

1. Do fish finders work?

According to experienced fishermen and regular users, yes, they do work. And quite well, according to their feedback. Many users swear by fish finders. However, like most machines, they are also prone to occasional errors. You should make sure to purchase a well trusted one; cheaper ones may have inaccurate readings.

2. Is a fish finder an absolute necessity for fishing?

No, a fish finder is not an imperative necessity to fish. Like most people, you too can get by without one. However, a fish finder is a great tool to have and can reduce your waiting time drastically. This, in turn, can significantly increase your usual yields.

3. Does getting a fish finder mean I will catch a significantly more substantial amount of fish?

That depends entirely on you and your fishing skills. A fish finder will only allow you to catch more fish, whether or not you can is entirely dependent on you and how you use it. It at most will only save you the time you would have otherwise wasted on trying to locate fish.

4. What is the best portable fish finder?

Again, that depends entirely on you. While all of the fish finders on this list are generally considered a good pick, whether or not it is the best portable fish finder for you depends on which particular form of fishing you would use it for, and what features you give greater importance to.

5. Do all fish finders come with a waterproof feature?

Sadly, no. Not all fish finders are waterproof, which is a shame. Considering how they are in such proximity to water, they most likely should be. But they are not. If you are specifically looking for one, we recommend you to read the product description, making sure to see if it is explicitly mentioned or not.


Overall, a fish finder is quite a useful tool. The products that have been mentioned on this website have high ratings, and all of the products have positive user reviews. However, based upon your personal needs, the best portable fish finder may vary for you. So make sure to read up on your preferred products, and choose the best one for yourself.

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