NIke + question

dietstokes

I have had my nike+ sports watch for several years so far, and I've loved being able to track my mileage. I just received the heart rate monitor that is compatible with the watch for Christmas and I was wondering how accurate the calorie counter is now that I have the heart rate monitor. It has changed the number of calories burned for a 2 mile run/walk by about 50 calories. I know that heart rate monitors can only give an estimated burn, but I was still wondering, how accurate is it? I have been searching for the answer, but thus far come up with nothing. Thanks for any input!

dietstokes

Really, no one?