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.
It offers 2,500 route points and 45 routes, and can be integrated with AutoChart (and Live Navionics) for integration. These premium upgrades are almost always more expensive and will result in higher prices.
GPS fishfinder combination has numerous benefits. You can use the mapping function to locate areas that are suitable for fishing. You can even save the places you've mapped out. It's possible to save fish finding spots in the fishfinder so that you can come back at a later time. It also offers a map that allows you to easily navigate to different places. With the depth gauge, you can also set waypoints.
You don't always need to consider screen size when selecting a fishfinder. I believe that smaller screens are a plus for those fishing on smaller boats or kayaks. It's much easier to mount, to operate, and far less fragile than giant equipment with 12-inch screens.
Two types of GPS fish finder combination are available: the fixed-mount and portable. Portable versions can be mounted on a boat's transom or mounted using suction cups. An alternative is to attach the fish finder GPS combination to your smartphone, tablet, or other device. The main guts of a GPS fish finder combo are transducers. These emit and receive sound waves that are then converted into images on a screen.
You can also create maps and contours. By creating travel paths, you will be able to create a plan every time you go to fish a specific lake. You will be able plan using data from your previous trips.
Worldwide Basemap is Garmin’s standard offering. It works with the same technology as their GPS on land. Access to river maps, ocean maps, and streams down to 100 feet will be available. You will also be able to access data on land like airports, urban regions, and territorial lines.