Side: The 15.05 firmware upgrade is causing severe battery drain in some models. From 8 days battery life it got down to 1. Multiple reports can be found here[1].

Support's response is "go to your region-local support shop".

[1] https://www.reddit.com/r/Garmin/comments/1mspank/venu_3_seve...

Thanks for that. I thought my Vivoactive 4 battery was just shot so I bought a new watch since it was only lasting a few hours.

I keep waiting for the Apple Watch to last multiple days so I can leave Garmin.