What is the definition of a “mobile connection”?!
Cateye's post was the clearest and most nuanced I've read on this matter.
I suspect the law that governs phones does not directly apply to smart watches so it's more a patchwork of areas that have been upgraded to accept emergency calls from unregistered smart watches and areas that have not.
We have two cellular Apple Watches — one paired to an iPhone that's on Tracfone, the other paired to an iPhone that's not associated with any cell company or service.
Tracfone does not have any plans for an Apple Watch.
It remains unclear to me whether one or both would call 911 in an emergency situation. Several people here at MR declare they will; hope that’s true.
It also remains unclear whether the watches will make the call if Airplane Mode is on. One would hope that an hard fall and emergency — and Emergency SOS — would override Airplane Mode. We've had the SOS go off and had to cancel it a couple of times while in AM, so I presume that's the case.
Lots of people who speak to this issue mention a U.S.
requirement (or law) that
ALL cellular-equipped devices must be able to call 911, whether they are attached to a cell phone company or not, and whether or not they are on a cellular plan. No one seems to cite the specific law, however.
Apple's web pages remain a morass of information, exceptions, and obscure terms.
For example, Apple declares this — a HUGE caveat:
“Some cellular networks may not accept an emergency call from your Apple Watch Series 5, Apple Watch SE, Apple Watch Series 6, Apple Watch Series 7 (GPS + Cellular), or Apple Watch Series 8 if your Apple Watch isn’t activated, if it isn’t compatible with or configured to operate on a particular cellular network, or if isn’t set up for cellular service.” (Emphasis added)
https://support.apple.com/en-gb/guide/watch/apdfe3c02513/9.0/watchos/9.0
One day, I’ll chat with — and call — Apple support and see if I can get a definitive answer about all this. For example, I'd like to know what “compatible with” and “configured to operate on” a network involve — and what “set up for cellular service” means! With luck, they'll provide an explanation in writing.