USA Cell enabled Apple Ultra - does it work in Europe / Asia?

[jlc1978]

did your carrier support Roaming on Apple Watch? If yes, did you activate Romaing on your Apple Watch?

See Apple Support Page:

Yes and Yes.

Here's a key part of the Apple support page:

To cover the LTE and UMTS bands used around the world, cellular models of Apple Watch come in regional models for the Americas, China mainland, and Europe/Asia Pacific. Unlike iPhone, there isn't a worldwide Apple Watch model that supports all cellular bands used globally. Find out which carriers in your country or region offer cellular service for Apple Watch.

 

[winterny]

So my question then remains, specifically will a cellular enabled Apple Ultra on the AT&T Network work in Europe, and if so, will I get some warning that I am about to incur some huge data charges or will this be some huge surprise on my bill?

I don’t know about AT&T, as I stopped using them over a decade ago precisely because they were so difficult about international roaming…

With that said, I have an Apple Watch ultra which I purchased in the USA one month ago and activated on T-Mobile USA before I left. It works just fine on TIM (Telecom Italia Mobile) in Italy, and T-Mobile does not have any roaming charges on any of their postpaid plans.

Call AT&T to see if they allow it and their prices, but 100% the hardware will allow it — no clue if AT&T does.

 

[jlc1978]

I don’t know about AT&T, as I stopped using them over a decade ago precisely because they were so difficult about international roaming…

With that said, I have an Apple Watch ultra which I purchased in the USA one month ago and activated on T-Mobile USA before I left. It works just fine on TIM (Telecom Italia Mobile) in Italy, and T-Mobile does not have any roaming charges on any of their postpaid plans.

Call AT&T to see if they allow it and their prices, but 100% the hardware will allow it — no clue if AT&T does.

Does it work as a standalone device on cellular? Mine works fine in Portugal, also on TMob, when connected to my iPone but does not connect independently to cellular.