DESC: The Polar AXN 300 watch will help you keep track of your runs with the Slope counter, check your pace down the mountain or up the rock with the Vertical speed feature, and the barometer allows you to track the changing weather. The OwnIndex feature tests your fitness level, so you can set a baseline and track your improvements. The OwnCal feature monitors your energy expenditure (calories) so you know when to refuel your body, also as a bonus the AXN 300 comes with a heart rate transmitter. Other Features: Material: Polyurethane Altimeter: Yes Compass: No Barometer: Yes Heart Rate Monitor: Yes Thermometer: Yes Alarms:Yes, 3 Waterproof: To 100m PC Upload: Yes Calorie Count: OwnCal feature shows your energy expenditure Warranty: 2 Year Use: Alpine, Sking, mountaineering and climbing