Is it possible to use an Apple Watch if iPhone has no cellular plan
I would like to get my young son an Apple Watch Series 3 with cellular, to use as both a GPS tracker and way to communicate with him. I prefer this to options such as Verizon's GizmoWatch 2, since the Apple Watch will connect via WiFi when he is close to the house (I have outdoor AP's) and also because it will work with the Apple eco-system that my wife and I have (iPhones and Apple Watches).
I fully understand that the Apple Watch will require me to have a dedicated iPhone for him. I am NOT ok with him using the iPhone, but I can easily find a used iPhone 7 locally for $100 which will serve as the device used to pair this Apple Watch.
The question I have is what service will I require for this? I have Verizon "Unlimited" plans for my wife and I, and adding cellular plan to an Apple Watch costs $10. I am wondering is it possible for me to setup a new line of service for an iPhone and also for the Apple Watch, and then cancel the iPhone service? This way I won't be paying for cellular service on an iPhone that I am not using once the Apple Watch is setup. I would keep the iPhone plugged in at home and it would be setup with a new Apple ID dedicated to my son.
Has anybody tried this?
Apple Watch