In the Watch app on your iPhone you can remove your current cellular plan for the the watch. I got the cellular version for the emergency contact ability and fall response. You also contact your carrier and tell them you no longer need the cellular service. I am sure you can start it again or if you change carriers, you could get it again with them. For me it is like an insurance policy. Once in a while I will answer a call on it when the iPhone is in the house.