The continuous HR measurement is not accurate during higher efforts when no activity is started.

hard effort at 170 to 185 HR the fenix 6 stated only around 90 to 105 bpm when no activity tracking was started. When I start the tracking the heart rate is almost spot on with the edge 1030 reading.

forums.garmin.com/.../anyone-still-having-heart-rate-accuracy-issues-with-their-fenix-6

The OHR samples more frequently during an activity than it does for 24/7 monitoring (peek under your watch to see this for yourself), and consequently gives more accurate HR during activity tracking.

No surprises in any of that.

mcalista said:

No surprises in any of that.

In the attached video on the left hand Fenix6X on the right Fenix5X 
and in the middle Edge using HRM-Run.

Someone should start a thread about this

It's deja vu all over again...

You are correct! There are several hundred replies to a tread with a similar problem. 

Sorry for everyone's comments Rudi84 but there are other threads about this issue on the forum so we politely suggest you search the forums first before starting yet another HR thread.

Well Garmin dont give a sh** about HR problems, so people are disappointed and disturbed and they open new threads and everything... if Garmin would tell us how are things and what to expect, insted of ignoring us, things would be different.

writing this is plain useless. the sampling rate may be less frequent outside of an activity, but if the WHR delivers totally wrong and way to low results it is simply not working, e. g. useless. i highly doubt the he was above 170 for just one, two or 10 seconds. what is a WHR good for if it shows 100 instead of 170?

if the sampling rate is that low, they should simply disable the WHR outside of activities and remove the measurement of stress, body battery, sleep, activity minutes and more.

Same here.