The Garmin GPSMAP 79s is a portable handheld GPS device specifically designed for marine use, featuring a 3-inch screen and a worldwide basemap for navigation. It is equipped with a compass, waypoint icons, and geocaching mode for added convenience. With its IPX7 waterproof design and compact size, it is perfect for GPS navigation while out on the water. The device also has a USB input for data transfer and a 1-year manufacturer warranty for added peace of mind. Weighing 350g and in a sleek white colour, the Garmin GPSMAP 79s is a reliable and user-friendly GPS system for marine enthusiasts.