Hi, I have added the activity manually which gives a screen to fill in
duration and type of activity. I've read on the help pages that provided
the added activity data is accurate or synchronises with the tracked data,
it shouldn't count the steps twice. However it did for me as my One only
recognised part of my walk as active minutes, not the whole walk. That may
be because it is steep and rough under foot in places so walking isn't
always fast as on a flat path but still takes effort, like hiking. I will
probably just stop logging my activity walks separately but I enjoy filling
in the exercise logs as it's motivating 🙂