Help understand your health and wellness better with all-day health monitoring and Pulse Ox. Track your activities for running, biking, swimming, strength and more. 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. Rugged GPS watch is water-rated to 100 metres and constructed to U.S. military standard 810 for thermal, shock and water resistance. Vastly extended battery life through solar charging.Instinct is a GPS smartwatch designed to break the rules, conquer the elements and last longer. Now it takes battery life to a new level by harnessing solar power.