How to keep your app open on your watch until done
I use the app Slopes to track my skiing days. It is a pain to have it "Return to Watch" after only an hour. There are a couple of questions on here that say that's all you can do, but, nay, nay, it can be done.
On your Apple Watch
- Settings/General/Return to clock
- Underneath there are your apps, click the one you want to keep open
- Click Custom
- Turn on Return to App
You're done.
Apple Watch Series 5