

It works on US bands! I have one! I’ve been able to send SMS and make phone calls fine on Mint Mobile.
(Still haven’t had time to fully switch over from my Fairphone 6 though.)
Wait! Sorry.
Uh, I think you’re talking about the Jolla C2 specifically. I can report that the Sony Xperia 10mk3 with SailfishOS works fine. Not sure about the C2.






The best supported third-party device is the Sony Xperia 10 mk3.
If you don’t want to install it yourself, you can buy the mk3 with SailfishOS already pre-installed here: https://buy.jolla-devices.com/product/sony-xperia-10-iii-sailfish-os/
They shipped to me in the US. It works on Mint Mobile.
Yes, it’s a little old, but it runs pretty smooth actually. So far at least.