Smartwatch makers promise to turn your wrist into a sleep lab, translating tiny movements and heart rate blips into colorful charts of deep, light, and REM sleep. The pitch is seductive: better data, ...

Smartwatches are like tiny smartphones strapped to your wrist. Most support texting, calls, voice assistants, maps, fitness tracking, tap-to-pay and more. For many folks at NBC Select, a smartwatch is ...

NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we earn a commission. Learn more. A smartwatch is like a tiny phone strapped to your wrist.