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Featuring a bright 2.6-Inch LCD color display with built-in basemap and high-sensitivity GPS receiver, the GPSMAP 78 series takes recreational navigation to a whole new level. All three models are waterproof, and include a built-in microSD card slot for loading additional maps and a dedicated MOB (man over board) button.

User Reviews about Garmin GPSMAP 78S 010-00864-01 Marine GPS Navigator and World Wide Chartplotter

I was in the market for a new GPS and came across this model while doing some research on the web. Although the Garmin GPSMAP 76 was available at very good prices, I decided to opt for the newer GPSMAP 78 model. I this will be only the third GPS I have owned in the past 15 years, so I wanted the very latest generation. The GPSMAP 78 has a very good feature set. It acquires a location very quickly after powering up. I was able to transfer waypoints to the unit when connected to my PC by using Google Earth. Very slick and easy! The only downside so far it the unit has lots of options and setup features. I'm still trying to remember them, but it's getting easier. I did contact Garmin and they confirmed that the unit does NOT charge the batteries when connected to a PC via the USB cable, nor will it operate on USB power. The unit is simply a mass storage device when connected. -- Looks Like a Winner