Suunto X6HR Heart Rate Wrist-Top Computer Watch with Altimeter, Barometer, and Compass Wrist-top computer/timepiece with heart rate monitor and altimeter, barometer, and compass Helps you analyze and improve your performance for your favorite endurance sport Shows elevation up to 29,500 feet plus vertical speed; 6-hour barometric trend graph to help forcast weather changes Water resistant, tested to 100 meters/330 feet Synchronize with your PC to analyze performance