Hi,
Now on Fenix number 4 which has developed sticky buttons (typically 'double bouncing' on the way out). On the latest, it's happening with the Start button.
Garmin Support in the UK have added me to a ticket regarding button issues with the device, as the engineers are investigating the issue in general.
As a result, if you are unhappy with the buttons for whatever reason, please can you contact support in order to officially add your weight behind the case.
Thanks everyone.