Explore the world with reliable navigation in hand. Rugged and water-resistant design with button operation and a 2.6" sunlight-readable colour display. 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 available on GPSMAP 64sx models. Wireless connectivity via Bluetooth and ANT+ technology available on GPSMAP 64sx models. Battery life: up to 16 hours in GPS mode.