How to make the Fenix 5 vibrate outside the HR zones ?

Former Member
Former Member
Hi all,

I have set the following in Fenix 5

Settings > Activities & Apps > Run > Run Settings > Alerts > Heart Rate

Low Alert = 144 bpm (Z3)
High Alert = 102 bpm (Z2)

At first it worked like a charm, the Fenix 5 will continue to vibrate whenever my HR is below 102 or above 144. But I don't know what happened because now instead of vibrating, it just turned on the backlight whenever my HR is below 102 or above 144 during Run activity.

Any ideas or tips is greatly appreciated.

Thanks