Hello,
I'm using my Vivomove HR Premium as daily device while going to work and as well when I sleep.
In the last 3-4 days I dond't have any REM measurement in Garmin Connect.
If I change to Forerunner 934 I get these. As well my girlfriend which she has a normal Vivomove HR (not premium) is getting the REM values for the sleep.
Any advice?