I thought this had a heart monitor. SMALL Display. The Calorie Burnt Counter is Kcal vs regular calories. I ran on the treadmill and compared my Calories burned and Distance and it was VERY OFF!  Overall the pedometer said I only burned 83 kcal I ran for 30 mins and walked for 15 mins = 45 mins total in  which the treadmill stated I burned 400 Calories. You must also calculate the kcal according to your age, but my results did not come close to the treadmill measurements.  Dissapointed. I bought this because of the reviews on how accurate it is. But it's not. Have you compared it to something else? a bike or a treadmill?