Lately I have been using both Favero Assioma Duo on my bike as well as with the Kickr5 indoor.
I should note that both devices are on the latest firmware available and not damaged in any way to my knowledge. Auto reset/calibration is turned on for both, so that they should be spot on all the time.
Lately, I did notice, that if ERG mode is turned ON (I actually did not test yet with erg mode OFF) when using Zwift there is a constant but noticeable difference in the amounts of watts measure, where the Assioma Duo measures almost precisely 10 watts more than what is displayed on by the Kickr5 on Zwift.
Did anybody else notice such difference? Certainly a lot of people online did experience similar issues in the past with much greater differences, mostly due to firmware issues that seem to have been fixed, or so they say.
I can’t explain this myself, but if anybody has encounter the same issue, has an explanation or knows what causing it/how to fix it, I would love to know!
For the moment I have set my Kickr5 to use and external AntID device (my pedals) if available. At least that way I will have a consistent, although possibly high, watt measurement when training inside and outside. For the moment that seemed to me the only reasonable thing to do.
Thank you all!