The Garmin 300C Waterproof FishFinder Review

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The Garmin 300C Waterproof FishFinder Review

The Garmin Waterproof Fishfinder 300C
The Garmin Waterproof Fishfinder 300C

You’ve probably heard the name Garmin before, but you might have not ever thought about their fish finders, which are among the best in the business. Not only does this particular model offer a full color and versatile screen, it is one of the most portable that you will find. Let’s dive in deeper to see exactly what you can expect from it, though.

While there is an endless list of reasons you should be interested in this Garmin model, I want to point out a few things in particular that will surely help you on any fishing expedition, no matter where you are headed. Once you take a look at what this fish finder has to offer, it is easy to see why you need to have it. There are very few that are capable of matching this kind of technology in function and in price.


With a fish finder, it is absolutely vital that you be able to see under the water. Otherwise, what’s the point of even having one? This one does it easily, primarily through a few simple features:  

PictureModelDimensionsDisplay SizePrice
The Garmin 300C Waterproof FishFinderThe Garmin 300C
Waterproof FishFinder

11.8 x 8.3
x 5.5
3.5 inches$$$

The Display

The display featured here measures 3.5” in size. That compact size makes it one of the more portable options that you are going to find, but it doesn’t make any sacrifices to do that. Even in direct sunlight you will be able to see all of the fish that you are attempting to catch. There is nothing that will escape you when you have this great view of the water.


Garmin has included a 300 watt sonar that offers a viewing angle of up to 120 degrees. With that power you’ll be able to see down to almost 1,500 feet with ease, making this a great option for almost any place that you’ll be fishing. Having a wide view sonar like this is especially vital for shallow water, but the more space you have the larger the chances that you will be able to catch a big fish.


One of the things that stands out about this particular model is the inclusion of HD-ID technology. This target tracking technology gives you a view like nothing you’ve ever seen before. You’ll be able to identify every fish that swims beneath you and you’ll never have to worry about trying to catch something that is anything other than the perfect catch.


Installation is easier than almost any other model you’ll find. Their easy Mount & Go system takes just a couple of minutes to install and with the quick release mount you’ll be able to remove it even faster. An easily mounted transducer is also included so that you won’t have to worry about permanently installing a transducer.


There are more reasons than not to purchase this particular fish finder, although they are too numerous to list here. Primarily, you should be concerned with things like the following:


The price is unbeatable. No matter what kind of fish finder you are looking for, the price will likely play a large role. For under $200, you aren’t going to be able to do any better than this. Normally a fish finder with this much power sells for a lot more, and this is your best chance of getting a lot more for a lot less money. Don’t underestimate the power of a good price.

Fish Tracking

The HD ID technology is incredibly helpful for anyone who wants to catch more fish and always know where to get them. By analyzing the sonar waves that it receives this device will be able to differentiate from different sized fishes and help you have more success than you ever thought possible. By having the chance to tell fish from other objects under the water, you’ll be making sure you have far fewer headaches when it comes to the results you get at the end of the day.


The power of this model can’t be underestimated. With the power that is going through this fish finder you’ll be able to hunt down a fresh catch every single time. Most lakes you are going to be fishing in might be much deeper than any cheaper fish finder can see to, but this doesn’t have that problem. Anything up to 1,500 feet will be seen by this fish finder without trouble.


When looking at this fish finder, it is hard to find any faults. It truly is one of the best options that you are going to find anywhere. However, think about these:

Smaller Screen

One point that is nit picking is the size of the screen. At 3.5” it is smaller than some of the other ones that are on the market, but that doesn’t mean it is anything less than great. It is still high definition and easy to read in direct sunlight, it just might be smaller than many of the others that you are looking at.

No Speed Sensor

This probably isn’t a big deal for most people, but a speed sensor will need to be purchased separately if you need one. This will make it easier on you in terms of sensor function, but how many people really need a speed sensor on their boat? Especially if they are using a smaller one or even a kayak?

The Final Word

As far as budget fish finders go, there are a lot of places you can go wrong. Simply purchasing the cheapest model isn’t going to do anyone much good, but in this case there are actually affordable ones that will do exactly what they are meant to do. The Garmin 300c fish finder will certainly serve you well for years to come and help you have many more successful fishing outlings. If you want to start having the best catches of your life, check one out today!