I have been working out at my health club for about 2 years now. I use a Life Fitness eliptical for the cardio part of my routine. I was speaking with a friend, explaining to her that my heart rate is very inconsistent during my routine. She suggested that I purchase a Polar computer if I want to achieve maximum benefit from my activity. I took her advice and was pleased to find that my heart rate was projected onto the eliptical and showed consistent readings. Now I am achieving maximum return on my physical investment !!!!