Rugged GPS watch built to withstand the toughest environments. Fits wrists with a circumference of 5.1-8.8 inches | Constructed to U. S. Military standard 810G for thermal, shock and water resistance (rated to 100 meters) | Built-in 3-axis compass and barometric altimeter, Plus multiple global navigation satellite systems (GPS, Glonass and Galileo) support helps track in more challenging environments than GPS alone | Monitor your estimated heart rate, activity and stress; Train with preloaded activity profiles | Stay connected with smart notifications (with a compatible smartphone) and automatic data uploads to the Garmin connect online fitness community | Use the tracback feature to navigate the same route back to your starting point; Use the Garmin explore website and app to plan your trips in advance | Battery life: Up to 14 days in smartwatch mode, up to 16 hours in GPS mode, up to 40 hours in UltraTrac battery Saver mode

When you can rely on Instinct, the world can rely on you. This rugged, reliable outdoor GPS watch is built to the U.S. Military standard 810G for thermal, shock and water resistance (rated to 100 meters). The fiber-reinforced polymer case adds strength and durability, and the chemically strengthened, scratch-resistant display is readable in bright sunlight. You can also activate night vision mode, which reduces backlight Settings to a level that doesn't interfere with the operation of night vision goggles. The fully vented silicone bands include two independent, removable keeper loops to ensure a Secure fit and to keep you from getting caught on things. Memory/ History: 16 MB.