A free app for Android, by Martin Birk.

Reconnect Garmin Watch is a handy utility for Garmin Watches, allowing you to easily reconnect to your device after it has been away from your phone for some time. It is compatible with the most recent models of the company’s wearable devices.

How to use it?

When you launch the app for the first time, it will start the setup process. In order to get it working properly, you will have to follow the instructions exactly. You should also turn off the battery optimisation for the Garmin Connect app.

You should now be able to see the notifications in your phone.