The next watchOS has been unveiled with notable additions in regards to the Workout app, Afib History and watch faces.
Apple showed the new watchOS 9 update during the WWDC 2022 event. New features, including upgraded and enhanced complications on previous watch faces, new ones such as a ‘Playtime’ face done by Joe Fulton and a Lunar face that shows the Lunar-Gregorian calendar relationship.

The Workout app has been redesigned with more runner-friendly features and metrics, like stride length, ground contact time and vertical oscillation.
A new AFib History makes its way on watchOS 9, allowing users to see if there were signs of atrial fibrillation over the course of a certain time period.
Rounding out the details are new custom workouts, alerts like Heart Rate Zones and Pace, training experiences, a Multisport workout for triathletes, Pool Swim workouts and an updated Sleep app. A new Medications app will also be added.
watchOS 9, when released, will be compatible starting with the Apple Watch Series 4 and newer.