Q: A lot of my friends are wearing those new fitness trackers. Do they really work? Are they accurate? I’m considering purchasing one—can you make any recommendations?
—Tom Richardson
A: Tom, great question! These new devices, which you can wear on your wrist like a watch, are not like the pedometers of my youth. They track steps, calories, sleep patterns and, in some cases, blood pressure and heart rate.
I suggest you decide which of those features suits your needs the best, and choose accordingly.