Just like is the case with most of the other products on the market, fish finders aren’t the “one size fits all” things that you just walk into a store and pick any that you come across. Each fish, as well as every fishing ground, have their unique necessities and requirements. As a result, no one product is the best fish finder for all situations. This is a buying guide of the best fishfinder GPS combo, helping you find that which will perfectly suit your needs.
Table of Contents
Points To Keep In Mind While Choosing the Best Fish Finder
The main factors that are used in the choice of the best fish finders are dependent upon the design, development, and ultimately the production of the products. Below are some of the categories used by savvy fishermen to make comparisons between different products before making an apt decision:
Transducers: This is the fish finder’s part designed to send out and in return receive the sonar signals underwater. Different fishing types require different appropriately corresponding transducers. The deep signal-sending transducers are needed for ocean fishing whereas anglers on ponds and other small water bodies would prefer a wider angle of sound wave transmission from their transducers. if you need a trolling motor mount, check that the part doesn’t offer this specific mounting option.
Frequency: Higher fish finder frequency results in the reception of more details on your fish finder’s screen. Deep-sea trawlers will need low-frequency transducers while the high-frequency versions work best for shallow angling. The most common range of frequencies is between 50 and 200 kHz.
Cone Angle: This is an angle representing the width of the “net” caught by the signal when deployed from the boat’s bottom into the water. Typical cone angles range between 15 and 20 degrees with other extreme cases going to about 9 and 60 degrees. Advanced anglers prefer products coming with different cone angles hence versatility
Display Screen: It will be prudent for you to consider the modern full-color screens, rather than the traditional sonar black/white screens. Fortunately, these clearer color screens are fast becoming more and more popular hence almost certain that your choice of the product would anyway feature a color screen.
GPS Capabilities: GPS is a must-have feature of any reliable fish finder; no wonder our buying guide specifically narrows down to the fish finder combo and no other. You will need a GPS product when you go fishing. Why buy a separate GPS apparatus when you can have one product that has all you need?
Power: The power of a fish finder is the determinant of the sonar’s operation speed, with fast units featuring higher wattage ratings.
Scanning Capabilities: There are two main ways used by fish finders to do the scanning. These include down scanning and side-scanning. The former is a very powerful, focused, and effective method that only focuses on the fish that is directly underneath the boat. The side scan on the other side covers a wider area but isn’t as precise as the down scan method.
Others: Other features to consider include design & durability, portability, manufacturer, and price among others. Price comes last on the list as it is never a prudent idea to buy your fish finder based on the price factor alone. Learn more about the best portable fish finder .
Why Do You Need a Fish Finder?
This buying guide of the best fishfinder GPS combo helps you to choose the best product. With the most appropriate product, you will end up with the most out of your fishing expeditions. What is the need of aimlessly floating on water and going home after several hours without anything to show for the time spent on the waters? A fish finder will optimize your efforts of putting food on the table.
Types of Fish Finders
There are three main types. These are:
The standalone Fish Finder: They are the most affordable and economical and the best choice to be considered by those looking for a product that goes for less than $200. The models display elements found beneath the boat, with most of them featuring larger screens. The GPS feature isn’t found in these products. They are the best options for small boats floating on inland lakes.
Combination/Chartplotter Fish Finder: This product comes with GPS functions and a split-screen for viewing surroundings. It works best for those owning mid-sized boats, they do fishing on larger water bodies and they also have a little more cash to spend. The combination fish finders are also referred to as combo fish finders
Networked System: These are the most advanced products for the experienced or rather big boys and big girls. There is nothing found in a fish finder that isn’t found in these. Be it vector GPS charts access, access to SiriusXM satellite radio, raster or radar, you will have all these at your disposal. Wi-Fi/Bluetooth options can also be made available. They are thus the best product found on the market
Garmin Echo 551dv Fish Finder


This model, which comes with a tough build and a large display, features a big display screen, with the resolution just being enough to offer clear visual representations of what happens beneath the boat. It is a color screen, which this efficient in enabling the user to differentiate between different animals as well as fish species. The Sonar rewind option allows you the possibility of revisiting the water-bound area previously undertaken thus allowing you to make some informed decisions.
Pros
- The 2,300 feet maximum Depth capability that it can research is good enough for most fishing requirements
- The display is very large and very easy to read. You can make distinctions between almost every product, thanks to the fact that the finest of details are displayed.
- Comes with a quick-release mount thereby making it easy and fast to install and get busy within no time
- It’s accompanied by documentation as well as a power cable. This makes it easier and more reliable to use
Cons
- Would have preferred a longer transducer cable
Garmin Echo 150 Dual-Beam Fishfinder

This is yet another great model on this buying guide of the best fishfinder GPS combo. It features a 4-inch display size screen and comes with an 8-level grayscale. It’s included a quick-release tilt mount together with the versatile transom-mount transducer that has been credited for making the product’s installation so easy. Its efficiency is attributed to the dual-beam technology, the 200 watts (RMS) rating, and accurate scanning capacity up to 1,300 feet depths in freshwater fishing environments.
Pros
- Comes with a compact design that keeps the fish finder out of your way, regardless of the size of the crafts used
- Features a snap installation design system
- The pricing is very fair. Most of the dual-beam technology products are more expensive as compared to this product that comes with the price of a single beam technology.
- It is one of the best-performing fish finders for inshore fishing
- The user manual is very deficient in vital information
- It isn’t accompanied by the protective plastic covering. If you need it, you have to spend $7.31 more
Raymarine Dragonfly-4 Pro


Pros
- The product is optically bonded, necessitating wide viewing angles, no internal fogging, and enhanced sharp color visibility
- Sonar data can be streamed live to your mobile device such as your Smartphone, thanks to the Wi-Fish mobile app by Raymarine’s
- Comes with a 4.3-inch all-weather display system that features a high-definition LED-backlit screen
- Comes with a dual-channel sonar, with one of the CHIRO’s offering a conventional fish targeting sonar channel
- It is easy to install and use
Cons
- Due to the small screen, an iPad would be needed for easy reading. Reading from an iPad may be challenging under direct sunlight.
Garmin Striker 4


Pros
- The model features rugged construction that enables it to handle the harsh environments as well as the daily wear and tear that come with the continuous activities of the finder
- It works as advertised, producing excellent functionality and reliable performance.
- Digitally advanced with reliable CHIRP sonar, an inbuilt flasher, and a higher sensitivity GPS for improved performance
- Comes with a waypoint map that increases the fish-catching performance no matter what the fish size is
- It is easy to install as well as to use
Cons
- Comes with only basics, with very few extras included
Deeper Smart Sonar PRO+

This is inarguably one of the best products on this buying guide of the best fishfinder GPS combo and by extension, among the best in the world. One of its main selling features is its little 2.5-inch ball size that makes it one of the most portable on the market. To boost the portability feature further, the fish finder is feather-light, weighing just some 3.5 ounces. An integrated Wi-Fi, a GPS, and an included bathymetric map, all improve the product’s fish finding capabilities. With all these features, you will be surprised that it costs less than $200.
Pros
- The sonar sensitivity is adjustable, making its use to be efficient even in muddy and cloudy waters
- Full-color screen viewing through the use of your phone’s screen thus making visual power to be as good as that of your phone’s screen
- It is very small in size as well as very lightweight thus making it one of the most portable fishfinder combos
- Comes with real-time map-making capabilities allowing you to archive hence access the maps in offline mode
- Great investment for serious open lake or ice fishing
- Its features are limited, with the offline mode also offering limited maps
Cons
- Its maximum depth penetration of 260 feet is a bit low
FishHunter Portable Directional 3D Wireless, Fish Finder

This is yet another fish finder that makes work easier for you and by extension, makes it easier to live in the world. This is a completely portable design, featuring a power of five transducers that work at a dual-frequency. This design, which comfortably fits in one’s pocket, enables anglers to know the underwater contours as they fish. At last, you can now see up to distances you never thought were ever possible- up to 160 feet below the water surface
Pros
- Comes with a patented Directional Casting that enables one to know where to exactly cast their trap to catch more fish
- Versatility is its other name is it can perfectly be used for ice fishing, small boat angling, and shore casting as well as for kayak fishing
- It comes with technological advancements such as inbuilt Wi-Fi connectivity with no need for cell phone tower reception. Its connectivity’s range goes up to 150 feet
- It’s a powerful product, coming with 5 powerful tri-frequency transducers further boosting the versatility of the product
- It is the only 3-Dimension wireless sonar that you can get on the market today
Cons
- Wi-Fi connectivity can pose a challenge
Garmin Striker 7SV

This is a product, from a well-respected manufacturer and with a well-celebrated design, for the most serious fish catchers. The product comes with a precise GPS and a tough design for functionality and durability respectively. The Garmin Striker 7SV comes with one of the biggest display systems on the market. Another selling point is the powerful nature that makes it a precise and reliable fishfinder, locating even those elusive swimmers. It is not only from its features that you can come to appreciate it as one of the best fish finders but also from the reviews put down by other users.
Pros
- Comes with numerous transducer frequencies, thus improving the product’s versatility
- Its split screen enables you the ability to view the surrounding environment thus better decision-making
- It is among the toughest and most rugged that has been developed for this industry
- Waypoint map, highly sensitive GPS, and an inbuilt flasher
- SideVu together with ClearVu imaging features makes it more efficient to sight an object
- Low resolution and low-tech navigation capacity
Cons
- The accompanying transducer won’t fit most of the boats
Lowrance HDS-7 Fish Finder

I may be sued for pre-empting that this product is a value product but let us analyze these features. The product features a 7-inch color touch screen, a split-screen that features fully customizable options, and full touchscreen or keypad control capabilities. The product also comes with a LED backlighting feature that allows for adjustability hence allowing crisp light for efficiency under all light conditions, the bright sunlight included. This makes the product to be the best for all your needs, hence the best product on our buying guide of the best fishfinder GPS combo.
Pros
- A large storage capacity capable of storing up to 3000 GPS waypoints as well as integrated wireless connectivity
- Up to thirty-one different language option availability
- A large 7-inch, easy to use touch screen display feature
- Features the shallow and depth alarms and an advanced fishfinder system for better efficiency
- SideVu together with ClearVu imaging features makes it more efficient to sight an object
- A bit pricey
Cons
- A relatively short year warranty
Powersonic 12V 7AH 570 Portable Fish Finder Battery

Fishfinders use batteries and it is prudent you know some of the products that are least likely to disappoint you. One such product is this 12V battery produced by Powersonic. It is a valve-regulated sealed lead-acid accumulator that is easy to handle, rugged for durability, maintenance-free, and very economical. The battery is characterized by wide operating temperatures; high discharge rate as well as deep discharge recovery and long service life. Learn more about how to get the right fish finder.
Pros
- Features a superior performance that is necessitated by the AGM (Absorbent Glass Mat) technology
- The safe operation which has been necessitated by the product’s valve regulation construction for spill-proof
- Yields unrivaled energy density courtesy of the high power/volume ratio
- A wider operating temperature range, high rate of discharge, deep discharge recovery, and long service life makes it versatile for use on an array of electronic devices and in a wide range of environmental conditions
- SideVu together with ClearVu imaging features makes it more efficient to sight an object
- A bit pricey
Cons
- Not the best shipment packaging
Chrome 12V 7AH Sealed Lead Acid (SLA) Battery for 570 Portable Fish Finder


This is also a battery type that features the Absorbent Glass Mat (AGM) technology hence a complete maintenance-free operation is realized. The battery features high-quality material construction after which it undergoes rigorous testing processes to guarantee OEM compatibility, safety, optimal performance, and effectiveness.
Pros
- Effective performance with no water, no leaks, and no spills thus allowing for complete maintenance-free performance
- Unmatched customer care service provision, exceptional 18 months of warranty, and good enough 60-day window of the money-back guarantee
- Weighs just 5.6 pounds, which is portable enough
- Improved Sealed Lead Acid accumulator together with AGM design responsible for the prevention of corrosion and leaks
Cons
- Not a one-product-fits-all
FAQ’s
How Does a Fish Finder Work?
Electrical pulses are sent to the underwater transducers by the fish finders. The pulses are transmitted as sound waves, with resultant reverberations back to the transducer whenever the sound waves hit something. The reverberations are then captured and relayed back to the finder, which in turn translates the information into compositions, shapes as well as sizes. Learn more about how to use a fishfinder
Is it possible to Sync a fish finder with a mobile device?
Yes. Provided your finder comes with such capabilities and your mobile phone can also allow for app installation
What’s the step to take when a transducer breaks?
In most cases, you may be compelled to buy and install a new model but consulting your owner’s manual or manufacturer before taking any step would be prudent
What Do I Do if my Fish Finder Stopped Working?
You need to determine the source of the problem. Try charging the device, and plug it into an Internet-connected computer to see if the computer recognizes the device. If the screen freezes or is slow to respond, try powering the device down and restarting it. You might also want to try downloading updated firmware for your model. If you suspect water damage, consult your owner’s manual for warranty information and instructions on contacting their customer service department.
What step do I take if my fish finder isn’t working?
Start by separately running your transducer cables from other independent wirings to minimize interference. If it doesn’t work, consult the manufacturer.
How does a Fish Finder work?
Fishfinders use underwater sound to locate objects. Sonar sends out sound pulses into the water. Echo returns tell them what object was found. A big tasty fish.
Why Buy a Chartplotter Fishfinder Combo?
- You won’t have to buy two different devices if you go with a chartplotter/fishfinder combo.
- Combo units make installation easier.
- You shouldn’t put all your marine electronics eggs into one basket.
What maps will be available for the GPS?
Sonar devices come in many different types, but most of them work by sending out sound waves and listening for echoes. Some of these devices also send out light beams, which can be used as an additional source of information.
What kind of fish GPS tracker is better for a small boat?
A fish finder plotter combo should be compact in size. It shouldn’t be too cumbersome while paddling or navigating your boat.
Why You Must Buy Lowrance HDS-7 LIVE?
Inbuilt Insight USA Charts help you locate fish. The product also provides you with more than 2 options. You can use either a touch screen or a keypad. You can choose either method depending on the condition you’re fishing in. The product is easy to operate. You can use it anywhere in the water. It is highly reliable because it is waterproof. It is a great fishfinder GPS combo.
The Humminbird 409971-1 HELIX 10 GPS Fishfinder is the best tool for finding fish. You can easily find fish using this model. Features include an easy-to-use interface, great battery life, and many other useful features.
You can upgrade the software any time you want. It has an improved LED screen of 10.1 inches and a built-in fan. It is not weather-sensitive.
Can I mount a transducer inside the hull?
Yes, you can mount an in-hull transceiver inside your boat. But first, you should check online how to do this. There are many different types of boats, and each type needs a unique mounting system. Some boats may require special modifications to be made before installation.
You’ll want to check on your installation before installing.
Where is the best place to mount a transducer?
Fishfinders are usually installed on the port or starboard side of the boat depending on what direction the boat is going. You need to install them near the center of the boat, but close to the side with the downswing of the propeller. This helps maximize the amount of water that is being pushed by the prop into the transducer.
Do you want a kayak fish finder with GPS?
- Fishfinders help you catch fish.
- GPS helps you navigate.
- GPS and fish finders help kayakers navigate safely.
- GPS and fishfinders enable anglers to track drifts, waypoints, and destinations.
- This fish finder lets you know exactly where the fish are.
- It helps you catch fish more efficiently.
Who makes the best fish finder GPS combo?
Hummingbirds, Garmanns, and Lowrance are the leading manufacturers of fish finders. They produce very powerfully and probably the best fish finder GPS combos under 500 dollars.
How much transmission power, and what frequencies?
- Frequency relates to how many data points you receive.
- Higher frequencies work better in shallow water, while lower frequencies work better in deeper water.
- Dual-frequency scanners are better because they cover a wider range of frequencies.
- For scanning deeper depths, use higher power ratings.
Do all fish finders have transducers?
Fishfinders are devices used by fishermen to detect underwater objects such as fish or other aquatic life. A transducer is the part of the fish finder that transmits sound waves into the water.
Conclusion
The Lowrance Elite-7 is the best product on our buying guide for the best fishfinder GPS combo article. The product is a budget fish finder as it offers the best compromise between price and performance. Though other products may have slightly better features than the HDS-7, they are designed for the high-end market segment.
The Lowrance Elite-7 on the other side is capable of producing some of the best fishing performances without breaking the bank. All in all, when looking for a fish finder, it is prudent that you consider the GPS combos. And still, within the GPS, try to understand your needs before seeking to make a choice. Now that you know how to go about it, hit the road and pick yours today.