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Here are the images from the phone tracker activity app showing the complete WALK and total details, well some at least

Your heart rate has to be up more than 101. My average rate when I walk is 138 (lots of uphill walking) and the activity app registers 28 out o 30 minutes.
 
Your heart rate has to be up more than 101. My average rate when I walk is 138 (lots of uphill walking) and the activity app registers 28 out o 30 minutes.

Is that on a reading per reading basis, or average..

as the average for this most recent walk was 109 average.
 
It can't be HR alone. Lucky me takes beta blockers and my HR doesn't get all that hight even when I am walking fast (14:30 pace so not that fast I guess) and my activity minutes come out fine.
 
Is that on a reading per reading basis, or average..

as the average for this most recent walk was 109 average.

The formula for exercise is heart rate + movement or something like that. If your heart rate isn't above a certain number (not sure what that is) it doesnt register as exercise.

On the flip side the other day I had Starbucks and was strolling with a friend and it registered 1 minute of exercise. Must have been the coffee buzz lol.
 
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