Go to Garmin Connect App - Settings - Notifications - Push Notifications - Scroll to the bottom of the page to Low Battery - toggle off for "Sensors".
Hello Hannah
The notification is on the watch and not on the phone. I have all push notifications disabled in the Connect app anyway.
Thanks though
That's interesting, because the notification was on my watch too, also a Vivoactive 3. It kept telling my on the watch that my phone battery was low, so I changed the settings on the push notifications to switch this particular one to off (had to do it separately to the other push notifications), and now it has stopped this annoying notification in my watch.
I just went and bought a new Garmin, haha
Perhaps it's a VA3 specific issue, who knows. I don't get the notifications on my new Garmin (Venu 2S).