Since a recent software update my 3 year old Vivoactive 3's battery life dropped to less than a day.
I contacted support, they responded very quickly and after a few questions authorised a free replacement with a refurbished device.
I was amazed they would do that - I was fully expecting having to pay for a repair or buy a new watch.
Anyway I sent off my watch, and got the replacement a couple of days later.
The replacement looked brand new, with a new band (I didn't send my old one as they said only send the watch), and after a couple of days usage the battery life is massively better.
So well done Garmin! Amazingly quick response and the replacement is like having a new watch.
This is a completely different experence that I had trying to get a competitor to replace one of their fitness watches in warranty when the display failed and it wouldn't charge. I gave up in the end and bought my wife a Garmin watch instead.