If I get an LTE watch and pair it to my iphone Xs but then take an old iphone 5 and swap in my sim card from the Xs, will I still have wireless service and all that on my watch?
I think it won't work.
It may will force you to reactivate the cellular on watch app on iPhone Xs if it detects that the sim card is no longer with that phone
It won't screw up your watch but you want have service on it nor will it get any notifications. The cellular works as a handoff from the phone its paired to. If its not paired to an active phone the cellular won't work and neither will any of the notifications.
It won't screw up your watch but you want have service on it nor will it get any notifications. The cellular works as a handoff from the phone its paired to. If its not paired to an active phone the cellular won't work and neither will any of the notifications.
The watch has its own cell number but how long they can be out of touch if the phone is OFF ( slide to power off ) off
may be a question for who does your cell service
For Sprint my watch is an add on to contract
Some of my watch app will not work if no phone and others after updates want me to use the app on the phone first