Multisport Workout
As we mentioned, fitness junkies will love the watchOS 9 updates, but triathlon athletes also are able to make the most out of their Watch.
Apple introduced the Multisport workout, which is a type of workout that’ll automatically switch between swimming, biking, and running.
Your Apple Watch will use its motion sensors to detect the workout you’re doing and switch automatically. You’ll be able to see the data for all three workouts on the summary page of the Fitness apps.