I am having the opposite problem. I regularly get 10,000 steps at work alone and since switching to the Active 2 from Fitbit, I am averaging 4000. It doesn't count my flights of stairs either. So far I am very disappointed in the watch.
I am having the same problem as you are. I went from a Fitbit to the Active 2, and it is A LOT harder to get my steps in. I went from getting 8-10,000/day to having to struggle to get 4000.
Is there a way to adjust the sensitivity of the watch's step counting?
This is all unhelpful. Up until today my Gear S3 has counted steps fine. I had to reset as the watch doesn't play well with iPhone, and now it will only count steps when on a watchface that doesn't have a step counter!!!!!
I've tried all the suggestions here but no dice.
Is there an update here re whether the current software has a fix -