What's with the rings?

I went for a 22 minute bike ride first thing this morning. Before coffee, even! This was followed by a 10 minute cool down. I figured that would close my exercise ring on my Apple watch but it only registered as 18 minutes. I'm not sure how it arrived at 18 minutes but I figured I could make it up later to get the full 30 minutes needed to close that ring.

Around midday, I went for a second bike ride - in 102 degree heat - for 15 minutes. According to the watch, I only needed 12 but Siri didn't chime in to let me know I had closed my exercise ring. After my ride, I checked my watch. It still said I only had 18 minutes total.

Here's what I'm thinking: the teeny tiny elves who've been busy hammering out all those awesomeness medals the watch keeps awarding me have the day off. Or maybe they went on strike. I have been pretty awesome lately.

Of  note, some of the activities that the watch will count as workouts are:

• curling
• golf 
• ping pong
• fishing
• hunting
• sailing

Housecleaning is not listed. Nor is taking a hot bath which I think should count as some sort of water activity.

Oh, well. I'm still awesome.