Distance recorded by Sense don't match treadmill

[Dogrot69]

I updated my stride but when I walk the tread is more. When I run the watch is more. I can’t seem to get it close on either end. 

Moderator edit: updated subject for clarity

[Heather-S · Accepted solution]

@Dogrot69 Personally, I use treadmill distance over the distance on the Fitbit. The treadmill knows how far you are going by the belt and is fairly precise. The Fitbit is trying to measure it by various metrics, including your stride, arm movements, height, etc. 

I even tried an Apple Watch and it was incredibly inaccurate with the treadmill as well. Fitbit under-estimated my distance, Apple Watch over-estimated.

I only take what is measured by the treadmill.

[t.parker]

Adding to what @Heather-S said, even distance on treadmill usually isn't correct. It's because the treadmill doesn't really care about belt. It just assumes that belt moves with fixed speed which isn't true. Belt constantly slow downs and speeds up (but counters go forward regardless belt irregularities). Old treadmill with old motor will be more off. The best is to look at the level of effort (by HR or RPE) rather than distance or pace (and match it to outdoor effort).

[Dogrot69]

Ok. Thank you for your input.

Sent from my iPhone-Cheryl Dill