Apple

I’m at the beach and decide to take a dip. I swim for a bit and my watch recognizes a pool swim workout and asks me whether it should track it. Gladly, but how?

Being already in the water has the screen locked. Pressing the crown, the side button and the workout button cancels the workout. The crown and side button at the same time does noting. When I finish my workout, get out of the water and deactivate the water lock, the workout vanishes as well. How does Apple expect me to handle that swim workout prompt?