Suunto's original Wristop Computer, the Vector changed the face of sport watches forever with its groundbreaking combination of features, including an altimeter, barometer, electronic compass, digital log book, and watch. Introduced in 1998, the Vector was the first watch to make it to the summit of Mt. Everest. The Suunto Vector is truly an instrument ready for any kind of outdoor activity. Hiking, climbing, skiing, skydiving all share one common feature; in order to practice them safely, you need accurate, real-time information about the surroundings. And this is where the Vector delivers. Regardless whether you are climbing mountains, riding a muddy bike track, or skiing off piste, Suunto Vector will not let you down even in the toughest of the tough situations. Its ergonomic design with a large display and convenient control buttons makes it easy to use even in the harshest and toughest conditions. It has an electro-luminescent backlight and a user-replaceable battery.