I have worn a Fitbit for years. I am on a 256-day step streak of 12,000 steps. I recently got an Apple Watch 6. Today, my Fitbit which is on my non-dominant wrist, shows 12,396 steps and 5.3 miles. My AW shows 8,912 steps and 4.19 miles. The AW is consistently showing fewer steps. (I would like to wear only one or the other, but not both. Maybe the AW will motivate me to work harder. It certainly has many more features. I can’t read the display on my Fitbit in direct sunlight, but I need to charge it only about once a week.)
Can you tell me why there is so great a difference in the number of steps counted?