While most smartwatches offer basic sleep tracking out of the box, there are many hidden features that can elevate your experience. Here are some of them.

Apple Health brings sleep tracking, scheduling and long-term analysis into one place, with your iPhone acting as the hub and the Apple Watch doing the overnight monitoring. Once everything is set up, ...

A person sleeping in bed with a circular smartwatch visible on his wrist. - Andrey_Popov/Shutterstock One of the core things I love about my smartwatch, fitness ...