Just an FYI for those on the fence, the 8/new SE/Ultra don't appear to include any new cellular bands vs the older 5,6,7,SE (and likely 4) watches, at least for T Mo, but likely for the other US carriers as well.
For T Mo, the watches are missing band 71, which is kind of the fall back band that covers a lot of the more rural areas. It's the one upgrade that would make a new watch an instant buy for me. Verizon & AT&T also have newer bands (I think they call them C Block bands or something like that) that don't appear to be added, but I'm no expert on those carriers, so I may be missing something there.
They don't really seem to emphasize the new bands like they used to do on the iPhones, so just wanted to call it out here in case it helps someone who is on the fence about upgrading or holding off another year.
For T Mo, the watches are missing band 71, which is kind of the fall back band that covers a lot of the more rural areas. It's the one upgrade that would make a new watch an instant buy for me. Verizon & AT&T also have newer bands (I think they call them C Block bands or something like that) that don't appear to be added, but I'm no expert on those carriers, so I may be missing something there.
They don't really seem to emphasize the new bands like they used to do on the iPhones, so just wanted to call it out here in case it helps someone who is on the fence about upgrading or holding off another year.