It's easy to start a workout on your Apple Watch, and it can usually be done automatically. Here's what you need to know to track your exercise.

To stop a workout on your Apple Watch, you can use the automatic reminder your watch sends you, or go through the Workout app.

Amazon's October Prime Day brought serious discounts on fitness watches—and even though the sale is officially, these last-minute deals are still live.

This budget-friendly wearable packs an impressive set of features for the price.