That's the strangest part. At the moment, I have credit for 6 minutes of Exercise even though my highest HR reading for the day so far is 72. Based on the time, that was walking up three flights of steps from my parking garage this morning. It looks like I received 2 minutes of Exercise credit for that. I received one minute of credit two times before that at home and twice since in the office this morning. It doesn't take much more than walking around with a HR in the 60's to get exercise credit.
But I'm at only 187/1,000 active calories (979 total calories).
For sure the exercise ring is easy to get moving a bit. Here's mine from today to illustrate how easy it is.
The red arrow in the morning. The first 2 blips are me drying my hair. I have relatively long hair (can be put in a man bun), and I rub my hair quite vigorously with a towel. That, whilst wearing the watch, counts as exercise. I then left the house a minute or so afterwards and carried the full bin bag down down the steps of my flat and out to the bin. third and fourth blips are at work, walking to the coffee machine (healthy!). Final blip (yellow) is walking up the stairs again to my flat.
If you walk at a decent pace then you'll get exercise minutes. My average walking heart rate is 65, which is obviously decent enough, and it still counts it as exercise.
The grey WorkOutDoors addition are lunch time run of 50 minutes (plus 2-3 minutes walk cool down).