Originally Posted by
datlas
I don't have a fancy PM but I do have a sense of my power from Zwift rides, and I have been looking at the power estimates from Strava. I do think they are reasonably close for solo rides. Clearly they do NOT take into account wind and other factors, but for a very rough approximation it's not half bad. I would guess it's within 20% of reality for an entire ride. For segments the error rate is a bit higher, of course.
Has anyone compared what Strava says and what your PM says to see if my observation is consistent?
If you have a power meter, you see the actual power data on your Strava and not the estimates. So you can’t say. But my impression is the Strava estimates I see for friends are very inaccurate. To the point of being meaningless.