Raymarine Dragonfly-4DV Sonar Review

Raymarine Dragonfly-4DV Sonar

Raymarine Dragonfly 4DV Sonar 1

Rating: 3.7/5


Screen Resolution




-It comes with a microSD slot

-It has in-built Wi- Fi

-It is flexible and easy to use

-It is inexpensive

-It is Compact and portable


-The 4.3’’ display is too small for split –screen

-Does not have a built-in sonar recording

-It doesn’t have NMEA connectors

If you are an angler, you need to buy a device that can give you an underwater view and help you catch more fish. Unfortunately, it may not be easy to get a reliable device that can offer you exceptional service under all circumstances.

Raymarine Dragonfly 4DV Sonar 2

So if you are an avid angler, you need to try out the Raymarine Dragonfly-4DV Sonar, which is small but helps anglers to identify objects underwater easily.

This is an award winning a wide-spectrum device that comes with high-speed tracking capability and gives better resolution even when under deep water. It is simple to use and is compatible with socket mounting systems.

Main Usage

Dragonfly sonar employs a wide spectrum CHIRP technology and has the capability to transmit more signals into the water. This way, it can target more fish and give clear images of the structure. The device features a 4.3 inch all-weather LED backlight high definition display, is optically bonded and gives very sharp color with no options of internal fogging.

Also, it features loose mounting ball, MicroSD memory card reader, Transcom mount CHIRP transducer, and a temperature sensor. It also features ball and socket tilt swivel that allows the angler to mount the dragonfly on any surface with ease. The finder is capable of detecting fish and structures that are up to 600’ deep. It comes with a temperature sensor and can be viewed under direct sunlight.

Raymarine Dragonfly 4DV Sonar 3

The unit boasts of automatic sonar optimization and has an easy to master user interface. Also, it comes with buttons that make it easy to use the device. The unit features a transom mount Chirp transducer which comes with a temperature sensor.

Product Features

Screen Resolution:

The screen resolution of a finder is determined by the pixels the screen has. The Raymarine Dragonfly-4DV Sonar comes with a 4.3" Color Display screen with 480 x 272 Resolution. This means that it is capable of displaying 480 dots in each row from right to left and 272 dots going down.

This is fairly good and allows the angler to see more details since it gives images that are sharper and crisper. It is a high-resolution screen that allows the angler to read even when the weather is too bright or when it is cloudy and dark. Also, the unit can scan images and display them on display with numbers that are well spread out and are easier to differentiate and read.


The power of the finder is important and is one of the factors anglers consider before they spend their hard-earned money on a finder. The power determines how fast the unit can display the readings on the screen.

The Raymarine Dragonfly-4DV Sonar works well on an operating voltage of 12 volts and an output RMS 500w.

This makes the unit best suited for deep and shallow water fishing since the sonar waves that are sent and received will be moderately fast and gives readings that are clearer. The fact that it comes with 455/800 kHz sonar frequencies makes it display clear images up to 600’.

Raymarine Dragonfly 4DV Sonar 4

The power is sufficient and makes the sonar the best option for anglers who fish in great lakes and salt water bodies. The unit is cheap and makes the angler map his area of fishing with ease.


The Raymarine Dragonfly-4DV Sonar comes with a colored screen designed to allow the angler to see more details. It can show up millions of colors, a thing that makes the fish finder separate underwater objects from the screen.

This enables the angler to have a clear view of what is going on in the bed of the water. Also, the fact that it can display millions of colors on the screen makes it reliable even when viewing the screen in bright light or when it is cloudy. The screen will remain outstanding in all weather conditions.

Cone Angles & Beams:

The cone angle and beams are important aspects because they determine the depth that a unit can scan and display the images on the screen. Also, the cone angle determines the area that can be covered by the beam and whose images can be displayed.

Raymarine Dragonfly 4DV Sonar 5

The Ray Marine Dragonfly-4DV Sonar finder comes with a 25 degrees transducer cone which comes in handy when viewing.

For down vision, the unit has a fan-shaped beam that allows 60 degrees side- to-side angle and 1.4 degrees front to back. This implies that it is a perfect device for anglers interested in fishing in waters with different depths. The down vision makes it easy to spot fish even when it is hidden in vegetation.


The Raymarine Dragonfly-4DV Sonar is a dual frequency transducer that comes with Mount transducer 83/200/455/800 kHz. It makes the unit to work well in both shallow and deep water. The angler can choose to operate at 83 kHz when pursuing fish in deep water or choose to operate at frequencies above 200 kHz when pursuing fish in shallow waters. As such, the unit can be put to commercial or professional usage.

The finder is capable of a whopping 800 kHz frequency that allows it to display incredible details and gives the angler the option of switching from general to narrower viewing if looking for great details. It also gives them a full picture of the details at the bottom, including the presence of small fish, plants and other objects at the water bed.


This is an affordable fishfinder and is considered an important device that an angler should own.

It has user-friendly features, is well designed to meet the recreational needs anglers look for in a finder. The unit amazingly combines sonar and navigation features. It is the best product you should consider buying.

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