A smart watch may be under your Christmas tree this week. The nifty gadgets are advertised as a tool to help you stay healthy. But can smart watches be trusted to look out for your heart? A Maryland ...

DEAR DR. ROACH: I see smart watches that are advertised to measure heart rates, oxygen saturation, blood pressure, and even glucose levels. Are these things accurate? -- A.K. ANSWER: The quality of ...

Ready to take your training to the next level? Here are the best heart rate monitors to track your fitness and health goals ...

We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication. While most fitness watches and other devices (like smart rings) can measure ...