 We are picky about Heart Rate monitors and this one is our favorite for the price and performance. Polar's M51 a very feature rich Heart Rate Monitor full of information. Two user option is great when you want to share your heart rate monitor but want to capture individual results. Remember OwnCal-tm is designed based on your ability to burn calories not a formula. A must for the individual seeking complete guidance and feedback on each workout. OwnIndex™ - In less than 5 minutes at rest the Polar Fitness test gives you your OwnIndex (fitness level), based on heart rate variability, age, height, weight, sex and activity. User can easily track progress over time. OwnCal™ - counts calories burned during exercise. Provides percentage of calories burned from fat. OwnZone™ Advanced - automatic intensity guidance with high and low areas of user's target zone with visible and audible out of zone alarms You and I - user profiles for 2 people, change of profile with just one button press. Exercise Reminder - three days after the last exercise, a randomly selected, gentle exercise reminder appears every full hour in the display. Dynamic Blue sporty design 1 Storage File Exercise Date and Time HR Limits Time in Zone Avg. HR Calories and % of fat burned Total calories Total exercise time OwnIndex™ |