Since update to software v. 4.20 the registration of heart rate is very late to be registered (the GPS is ready minutes before the HRM). Very annoying
I have updated to software version 4.60 and sensor hub version 2.70
The 4 hour widget catches the heart rate immediately when wearing the watch...
There are several posts regarding this issue e.g. https://forums.garmin.com/showthread.php?348533-Optical-HRM-not-working-device-sluggish-and-battery-drain-since-update
I have to return my device now, but why can't Garmin fix this, since it seems to be a software issue... (4.30 and 4.60 did not solve the issue)
Looking forward to replies