Can a smartwatch replace a phone?
In theory it’s possible. You’ll need a cellular-enabled watch. You will still need a smartphone to pair the watch with (and many carriers have plans which essentially share a number between both watch and phone, so you can’t 100% get rid of your phone—but you can just put it in a drawer and not use it). If you are looking for a smartwatch that can function independently and keep you connected even when you leave your phone behind, a standalone smartwatch with cellular capabilities is the way to go.Does a smartwatch need a SIM? No, you don’t need to insert a SIM card into your smartwatch in order for it to work.