I'm not sure you'll be able to get a definite answer to that. I believe treadmill calibration can be off a bit, and they can have some slippage too, maybe somewhat depending on maintenance. But also any error in stride length gets multiplied with every step. It sounds like you have looked at where Fitbit sets stride length. Maybe you have noted there are separate settings for walking and running stride lengths too. I think "Treadmill" setting always used walking stride length. You might try using the fitbit exercise mode of "running" next time to get the running stride length, except if you have a tracker with built-in GPA, you would want that turned off. OR you could stay with treadmill setting and set your walking stride length to what you running stride length is at, remembering you running length is, to reset to afterward.
Plus your stride length probably changes during the cool-down as you slow down. Maybe you want to check mileage on treadmill and fitbit at start of cooldown to see how they compare then.
So not a simple answer but if I had to choose one or other, I would say treadmill is probably closer. You could just adjust stride length to match treadmill if want an easy solution.
Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.
Platinum Fitbit Product Experts share support knowledge on the forums and advocate for the betterment of Fitbit products and services. Learn more
Best Answer
