Battery saver HR sleep mode bug

Are you sure you don't have a paused activity?

If you start an activity, then when you pause it select "Resume later" you won't get any sleep being recorded until you properly end the activity.  This is a known "issue"

Definitely not. Sleep activity is recorded (ie I get a sleep score, restlessness etc) but zero heart rate data between the sleep hours, despite being set to no change. Weirdly I’ve set to disable activity recording during sleep, which apparently disables sleep activity as well, but this still works.

It is more than weird, it is illogical. Without hr data no sleep recording happens, at least it was the case with my f5+ when inopted for activity tracking, but switched off ohr. I guess it is the same for f6, but havent tested it yet.

i assumed that was the case, but see grabs below. No HR between 10-6.

As a test last night I set “Activity Tracking” to “Don’t change” and my HR data is back. As far as sleep data goes, it’s identical with HR data showing in the graph or not (on the watch it’s always been set to don’t change), or activity tracking enabled or not (previous post was disabled, this post it was enabled).

Same here. 

Glad it’s not just me then! I don’t know if this means disabling activity tracking disables HR logging by design (bit odd as sleeping isn’t really an “activity”) but by that rational I should have no sleep score, so clearly the data is there or it doesn’t use HR data to calculate it.

either way I think HR needs a dependancy on activity tracking to make sense. 

Thank you, I will check this again by keeping activity tracking active while sleeping (doesn't make sense nevertheless). 

Disabled HR does also affect oxymeter and stress measurement either.

Should be a bug since former FW was okay in this aspect. 

Power Manager - Keeping Activity Tracking solves the issue

But it's a bug. 

I've had the same issue and have spent way too much time on it. Thank you for posting. Sure do get weary of navigating Garmin's clunky user interface/software.