> I also dislike needing an app and an internet connection for the most basic functionality with some purchased device.

Yeah, my watch supports setting (and syncing) the time and timezones using bluetooth. But before you can do that, you must agree to the maker's ridiculous privacy policy which includes consenting to sending them all kinds of data that has fuck all to do with setting the time on a watch. Immediately uninstalled. So that feature is dead weight to me unless/until someone reverse engineers the watch.