Harvard Health Letter

Can a gadget get you going?

Testing devices that measure how active you are.

Most of us need some added motivation to exercise, and gadgets that tell us how well we're doing can perhaps supply it. We had Christine Junge, an associate editor at Harvard Health Publications, test three of them for the Health Letter.


A pedometer keeps track of the number of steps the wearer takes. Many models also calculate how many calories you've burned. It's the least expensive device I tested and the easiest one to use.

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