I don't think I want usb c on my watch. It would be nice if Garmin figured out why the inexpensive 3rd party charge cables work so much better than theirs though. It wasn't very surprising when I expected my watch to be charged and it wasn't because the connection is so unreliable. Now that I'm using a $5 cable it's always fine.

It bothered me a little that my 830 didn't come with usb c. Micro usb works fine once you get it plugged in, but I'm sure people have broken the pc board connector. I thought about getting their integrated power bank, but it's just too expensive for me.
On edit: I just looked and it's even more than I remembered, $180 list for 3000 mah. That's almost comically expensive.