Hmmmmmm...I guess I assumed it had to do with weight, since the trainer had asked me about mine right before discussing heart rate, but you could be right. I frequently use the pulse rate hand grip, too. My new pedometer is pretty cool, though, and has a function for providing heart rate--you simply press a button, then rest your finger on it. Good luck!

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"Life is too short to wake up in the morning with regrets. So love the people who treat you right, forget about the ones who don't, and believe that everything happens for a reason. If you get a chance, take it. If it changes your life, then let it, and if you have to wait for what you really want, take the time because nobody said that life would be easy. They just promised it would be worth it." ~ Unknown author