We have Pedometers and Heart Rate Monitors at my school. We had to use both for the PEP Grant that we won. The younger students love the pedometers and the older students hate them. You can do so many activities with the pedometers and the younger students. But, the only downfall is when they realize if the shake their pedometer, the numbers increase.

The heart rate monitors work good for the older students but take a lot of time to clean and get the data.Back to back classes make it difficult to download data and have them ready to go for the next class. I hope this helps!

If I had to pick I would choose the pedometer because it is easier to compare results between students. They also tend to be a lot cheaper as well.