I'm aware that smart watches may under or overcount steps, however as my goal is to spend less time sitting down, and more time being active in some way, it will probably work as a record of daily activity. Also, the sedentary alert is useful for giving me a nudge if I've been sitting for over an hour.
https://www.theverge.com/2019/8/12/20798928/how-to-fitness-tracker-step-count-accuracy-smartwatch-numbers