Sleep deprivation, altitude, and exhaustion can mess with your mental bearings and leave you wondering exactly where the hell you are, but Suunto's Ambit3 Vertical Watch will help you pin down your location, your destination, and the path between the two. Featuring GPS navigation, FusedAlti altitude profiles, and visual route tracking, the Ambit3 will take the guess work out of your next vertical endeavor and leave you confident in your pace, route, and progress.Suunto gave the Ambit3 virtually every feature you could want or need whether you're ultra running, trekking, cycling, or competing in a triathlon. The watch has an impressive 15 hour battery life with five second GPS accuracy updates, but can be dialed back to one minute accuracy readings to extend the battery life up to 100 hours. To keep you oriented, the Ambit3 comes with an integrated compass, GPS navigation, and an altimeter. It's also compatible with Apple and Android smartphones, and it's functionality can be expanded with Suunto's Movescount app and other Suunto fitnesstracking apps, so you can plan routes with a topographic map, see your altitude profile, and share your adventure with the Movescount app.