Not sure why your Apple Watch lights up green on the back? There's more going on under the surface with this vital fitness ...

While your Apple Watch is generally reliable when it comes to reminders, app notifications, and music control, the device isn't without fault. Sometimes, it won't charge, connect to your Wi-Fi, or ...

The Apple Watch is a handy tool for tracking your exercise. With the device on your wrist, it can monitor your physical activity across an array of supported workouts. There are the basics, such as ...