Suunto X6 Wrist-Top Computer Watch with Altimeter, Barometer, Compass, Clinometer and PC-Interface Wristwatch/computer great for cross -training sports such as mountaineering, hiking and cross-country skiing" Chronometer memory records accurate altitude profile with 10 or 60 seconds interval Advanced timing functions of stopwatch enable you to record activity lap and split times Accurate altimeter with 1-meter resolution helps to measure vertical performance Features compass and barometer with a barometric graph to help forecast weather changes