How Your Smartwatch or Fitness Tracker and Phone Can Help You Track Your Health

So what can you do with your devices now? And how useful or accurate is the info that features like step counters, sleep trackers, and heart rate monitoring provide?

The Consumer Reports experts who test and write about these devices—including Allen St. John, a senior editor covering technology and privacy at CR, and Charles Davidman, who leads CR’s smartwatch testing program—give you the lowdown.

To see each tip, click or hover your cursor over the black dots on the illustration below (or tap on a mobile device).