I'm about to buy my self a smart watch but from reading and watching many reviews I realize that I will need a sim car. So what is a sim card for smart watch ? Is it like some special one?
Just make sure you got the right size that will fit into the watch. Nowadays it doesn't really matter because you will get this type of card which has all the possible sizes.
If you need positioning function for your smart watch. Mostly for tracking purposes you will need to put in a GSM capable sim card. Doing so will allow for cell tower triangulation tracking.