The difference in HRMs

Anmri2Win

I use 2 HRM when I exercise, only because I use Wii EA Sports and it will not go unless I have it on. The other is a HRM that sits right over the heard and the readings show on a watch that I wear. So I have now compared the readings for a couple of days and the difference between the Wii HRM and the one over the heart has about a 200 to 300 calorie burn difference, (depending on the exercise), where the HRM over the heart shows the highest burn.
I have also used a pedometer for walking while wearing the HRM and the pedometer was also much lower than the "over the heart" HRM, and the same goes for the monitor reading on my Elliptical trainer (also lower than HRM).
For all you specialists out there, which one should I believe? Which one will be more accurate. I feel like the HRM over the heart is the best and not because is shows a higher burn, but because it's right over the heart (am I wrong in thinking that) and the Wii HRM sits on my arm near the elbow. I know that a HRM is not super accurate as it cannot tell which muscles you are working, but it must help some for logging exercises and figuring out net calories and deficits, right? Any suggestions will be greatly appreciated, thanks!!

hbrittingham

I would go by the HRM if you had to input your gender, weight and age into it. To me, that would be the most accurate.