Rugged and water-resistant design with button operation and a 2.6” sunlight-readable color display Preloaded with TopoActive maps featuring routable roads and trails for cycling and hiking Know where you’re at with a high-sensitivity receiver with quad helix antenna and multi-GNSS support (GPS, GLONASS and Galileo) and 3-axis compass with barometric altimeter Wireless connectivity via BLUETOOTH® technology and ANT+® technology available on GPSMAP 64sx and GPSMAP 64csx models GPSMAP 64csx adds 8-megapixel autofocus camera that lets you geotag photos Battery life: Up to 16 hours in GPS mode