My 80 y.o. mother will not use a smartphone, however, I would like to give her a cellular (T-mobile service) Apple Watch, because it sports the fall sensor, that automatically calls EMS / designated contact.
Although could configure the Apple Watch with an un-simmed iPhone: Is it possible to provision an A-Watch so that it has its own phone number and not share it with an iPhone? She has a flip-phone (Tracphone) that she is comfortable with and I am certain she will switch to any smartphone.