Rugged GPS watch with vastly extended battery life through solar charging Water-rated to 100 metres and constructed to US military standard 810 for thermal, shock and water resistance Built-in 3-axis compass and barometric altimeter plus multiple global navigation satellite systems (GPS, GLONASS and Galileo) track in more challenging environments than GPS alone Track your activities for running, biking, swimming, strength and more Help understand your health and wellness better with all-day health monitoring and Pulse Ox Monitor how your body uses energy by tracking heart rate, stress and sleep with Body Battery energy monitoring
eBay