Humminbird 409470 Fish Finder Review

  • Humminbird 409470 Fish Finder Review
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Humminbird creates expensive, but well worthwhile fish finders that are consistently ranked as some of the best in the entire world. There is a good reason for that, once you start looking at all of the features that are included as standard features. The sonar alone makes it a worthwhile product, but once you see the GPS power of it as well, you’ll see why the 698ci is absolutely top of the line.

What To Look For:

There are three primary things that you should be looking for if you want to have the best fish finder possible. Once you understand them, we’ll look at how well the 698ci meets all of these criteria without any difficulties.

A Great Sonar

Sonar will be responsible for showing you what is going on underneath your watercraft. The amount of power going to it will make a difference, but you need to look at the frequency and the angle that it uses. Most will only have a 60-degree angle available, although some will use a dual beam system, like here, to specialize the kind of view that you are receiving the water.

A Great GPS

If you want to take on some of the waterways and lakes that are out there, you’ll have to be able to see where you are and where you’re going. That is where a GPS comes into play, using satellites to keep you in view and allow you to save your location so that you can come back to it whenever you want.

A Great Display

Every fish finder you look at is going to have a display, but without a good one, you’ll be left looking at a screen that doesn’t truly offer you anything important. With a high-quality display, you’ll be able to see it during the day, even in bright light, and always know what kind of fish is under you and where the water temperature changes. This lets you find the best places to fish without having to ever resort to trial and error.

The Sonar

The sonar is the most important part of any fish finder. Without it, how will you ever be able to find the fish that you are looking for?

Side Imaging Sonar

Side imaging sonar stands out with this particular model due to the ability to see 180 degrees of the world beneath you. This side to side motion sonar makes it possible to see virtually everything that is going on in extremely high detail, thanks to the ultra-thin beam that scans up to 240 feet on each side of your craft.

Down Imaging Sonar

Down imaging sonar is incredibly unique in that it gives you a “fish-eye” view of the world below. This means you will be able to see, through the use of high-frequency sound waves, everything as if you were a fish, something that is unparalleled anywhere throughout the fishing world.


Switchfire sonar is one of the biggest innovations that Humminbird has made. By switching between Clear and Max mode, you can add and remove detail in a way that lets you dial in exactly what you would like to see for your purposes.

DualBeam Plus Sonar

The DualBeam Plus sonar system builds on the switch fire technology and uses to separate beams, functioning at different frequencies, to let you get the most accurate results anywhere. You will be able to search through a wide area with a larger beam; a closer beam will give you a highly detailed look, and combining those two will make it possible to have the perfect view when and where you need it.


The built-in GPS of Humminbird systems is one of the tops in the industry, and with good reason. Where many companies have a GPS that is accurate within several meters, this one is accurate within very feet of your location.

With the waypoint management features as well, you can store all of your favorite fishing locations and make sure you can always make it back to where you have had the most success in the past. There is also the ability to move them onto an external SD card so that you can load them into your computer. You can also sort all of your waypoints by location, recently used, and more.


The display that Humminbird has included is par none, but that should be expected. With a 640 X 480 resolution and measuring 5”, this 256 color display is one of the clearest that you can find anywhere. It is even highly visible in direct sunlight, which is often the case when you are out fishing on a body of water that is highly reflective.


Quick Disconnect

Having a way to disconnect your GPS fish finder is important if you are going to keep your belongings safe as well as save time and space by making it easy to attach. That is where the Quick Disconnect comes in. This will let you easily remove the fish finder and re-attach it when you need it, without ever having to worry about installing it permanently.

Tilt and Swivel

Rather than being stuck in a place like many other models, this one allows you to tilt and turn the device so that you have the best view at all times. You won’t be stuck in one place here, especially since it is already incredibly portable.

The Final Word

Overall, you’ll see that this is one of the best options that you will find. Think about the things that we’ve covered above and see if it seems like a fit for you. If you are a serious fisherman, though, it is very likely that this will be one of the best matches for exponentially increasing your ability to catch fish in a way that you might have never thought possible. Pick one up today and start fishing!