I found out only stress i am getting is out from my 935 stress readings, i borrowed my wife FR645 and tryed over night becoase i was almost sure i cant have that much stress in night sleep :) and here is the result.As much as i feel happy knowing its not problem in me - i thought that 935 are something like flagship but i guess i got for that many nice looking random numbers and grafs generator. ciq.forums.garmin.com/.../1354330.jpg
No issues with stress level here as far as I can tell... Do you wear the watch 24/7? Not sure how it is determined but perhaps heartrate zones not set properly or something?
Also try watching both watches at the same time for 24 hrs, that way you can REALLY compare.
For me with my 935, this has been an ongoing issue, A hard reset would deliver about two days of what I would consider accurtae data and then it would break again.
The 8.99 beta update has cured all day stress for me, as there was an update to the WHR software.
Might suggest that you do the same and see what you get.
