Boaters seeking a Marine GPS Navigator, consider the Garmin GPSMAP 78s. This has a 3-axis compass, barometric altimeter, color mapping, high-sensitivity receiver, new molded rubber side grips, plus a microSD card slot for loading extra maps. It is also water resistant and floats!
It is pre-loaded with a worldwide Basemap so you can go anywhere with ease.
Key features:
Know your heading even when you’re standing still, without holding it level.
Plot barometric pressure over time, which can help you keep an eye on changing weather Share your waypoints, tracks, routes and geocaches wirelessly with other compatible device users. Just press “send” to transfer your information to similar units. the most Add extra maps easily with detailed marine maps available on microSD card. Conveniently plug in BlueChart g2 preloaded cards for water navigation. (Card slot is located in the water resistant battery compartment)
Also compatible with Custom Maps, free software that transforms paper and electronic maps into downloadable maps for your device
This is an Amazon's Choice Product, get yours at: https://amzn.to/3dv6HGN