Interval workouts is the one thing I miss from Garmin. The feature is really superior.
Beginning by defining the workouts in web or app, being able to created nested intervals and the implementation on the watch with interval countdowns and pace/heartrate/whatever alerts is really great*.
Hope with iOS17/watchOS 10 there will be good apps to create workouts and sync to the watch. If not, I already announced that I will implement something that also allows nested workouts. Or we nag WorkoutDoors author
@cfc to implement and interface to export WOD workouts to Apple Training app.
* though the implementation on Garmin also has deficits that are there since few years: basis for pace alerts are always GPS, not the footpod when connected. Also the gauge that is displayed during intervals is pretty worthless.