I'd guess you get even more "steps" mowing the lawn on your tractor per hour, than riding in a car.
I'd imagine so if I used a fitbit, but I don't use a fitbit. I use an iPhone in my pocket. It doesn't get bounced around as much as a fitbit on one's wrist.
Kinda funny that wife and I will go on a walk, and she'll get significantly more steps than me. Now I do have a longer stride, so I'd expect to get less steps than her. However, we walk together, and it tell us she walked farther than I did. No way. We were side-by-side.
I believe my iPhone uses GPS only to figure distances and then divides that by the number of steps to get my stride length and updates itself fairly often. However, it's a common concern that iPhone UNDERESTIMATES the number of steps. So that can be another factor why her step count it much higher than mine, besides my longer stride length. (although underestimating is better for you, so I'm not concerned).
However, I think the fitbit needs to be calibrated to stride length manually once in a while. Where you measure off a distance, count the number of steps, and divide steps per distance to get stride length. Then you have to enter that in your fitbit program. If you don't do that, it will estimate you stride length based on age and height, as I recall.
Anyhow, wife is much 'fitter' than I am. She rides an elliptical trainer twice a day for half an hour each time at its highest setting. I can do about 5 minutes before I want to barf!
