With SiRFstar IV GPS technology allows you to keep track of distance traveled, elapsed time and speed. Smart Calories tells you how many calories you've burned.
Training Benefit provides feedback after your workout. Training Load helps you find a balance between training and rest, and ZoneOptimizer helps ensure you remain at the appropriate intensity level during workouts.
Shows your fitness progress. Running Index scores your performance and helps you improve with endurance training programs available via the Polar Web site.
Allow you to improve your running and cycling performance.