iPhone Life - Best Apps, Top Tips, Great Gear

The Apple Watch is a valuable tool for many fitness lovers, offering plenty of helpful workout and health-tracking features. The latest software, watchOS 9, includes options for customizing workouts and training intervals on your Apple Watch, including warmups and cooldowns. If you're unfamiliar with interval training, this is a type of workout where you alternate between periods of intense activity with short periods of rest or lower-intensity activity. Below, we'll cover how to create a custom workout, add a warmup and cooldown period, and create the intervals you need to best achieve your fitness goals!