Keeping track of your physical activity can be hard without a Fitbit, Apple Watch, or other workout tracking device — especially for people who walk as their main form of exercise. The easiest ...

Step counting has been a time-honored fitness metric for decades, even if the 10,000-step rule of thumb was based on a Japanese marketing strategy rather than anything resembling science. The older ...

It seems really weird to think back to a time when your mobile phone couldn’t do the jobs of a dozen other devices. Now that smartphones have supplanted everything from compasses and Rolodexes to ...