Let me begin by talking about the elephant in a room. This fish finder doesn't have MicroSD slots, and it does not have GPS. It does have mapping. This means that the fish finder comes with everything and Garmin can't sell or download additional mapping.
There are many options when it comes to sonar, GPS and navigation. That's why I believe it is the best option. DualBeam is an excellent feature for anyone looking for side and down imaging. This will give you the best versatility on the sea.
Before I begin, I have to mention that so many of the premium features in this fishfinder are premium upgrades. The barebones models have nothing but a standard fish finder. If you don’t plan to upgrade, you’d be better off getting a lower model.
This review is about GPS. Let's discuss it. It supports network compatibility. You can get live radar, camera, Bluetooth connectivity, smartphone connectivity, chartplotting and maps. All this can be done directly from the fishfinder.
The FishReveal technology is one of the most impressive features of Hook Reveal. You can now see both structures and fish arches simultaneously. Although this is becoming a more common feature in fish finders, it still impresses.
Let's start with the elephant in the room. This fish finder has GPS, it does have mapping, but it doesn’t have a MicroSD card slot. You are left with what comes with your fish finder unit. Garmin doesn't offer any additional mapping.
Genesis Live mapping has some of the best features in the industry. C-Map contours can be viewed with high resolution detail. One-foot contours are also available for over 5,000 lakes in the United States. You can also fish in the Canadian Lakes if you are fishing up North. You will need an SD card to access the information.