Find my phone with gps during activity

https://www8.garmin.com/manuals/webhelp/GUID-C001C335-A8EC-4A41-AB0E-BAC434259F92/EN-US/GUID-3FEA8636-13DF-4111-B4BF-ADEC57E594AA.html

This should help 

Thanks. I found that help too, but I don't know how to activate it. It is not working for me during a gps activity... I go to settings - notification and alerts - system alerts. I turned on find my phone alerts and phone connection alerts, but still can't use the feature that finds your phone during a gps activity

How did you test if it is working? 

Starting a Trail Run activity with the watch connected to the phone and leaving the phone behind at some point. Nothing happened. No alerts

If you left it behind until it gets out of Bluetooth range and disconnects, the alert should pop up. If it doesn't, I also don't know what could be the issue. I can only advice you to get in touch with Garmin support then. 

I experienced the same on tactix 7 Pro. The functionality behaves as expected on fenix 7 Pro.

I am trying to make this work too - it would be really useful if I lose my phone during an activity.   I turned on phone connection alerts, but it doesn't give any alert if I leave my phone behind, and I don't see a way to navigate to the last location where the phone was connected.   I am using an Epix Pro 2 w/ software 18.14.

Did you turn "find my phone" alerts on as well? There is a difference between phone connection alerts and find my phone alerts. 

Yes, I have both "find my phone alerts" and "phone connection alerts" on.