I train for triathlons. The watch is finally part of that (even though I still wear two watches) ... https://shandor.medium.com/finally-training-is-possible-in-the-apple-ecosystem-32c9587b19f5
I charge the watch every morning with my coffee, when I don't need it. This lets me track sleep, do my training (even if its a 5 hour day of training), listen to music or books (usually books) the entire time while training without carrying my phone, get and reject notifications depending on my focus mode.
I will complain that the GPS in water is not great (virtually none of them are, including Garmin) .
I wish apps did more to utilize the action button, I wish the action button had more choices. I like th paying and unlocking certainly.
How are you setting those timers.. I have not found a convenient method. I would also like a self resetting timer for reminders while I train. Is it a particular app? or am I missing a feature ?