Shirin19972 years ago000Is a SIM card necessary for the transmission of the GPS coordinates?Show in original language (German)iwan2 years ago000No, no internet connection is required for GPS tracking....However, my experience has shown that the watch finds the GPS coordinates faster if the watch is regularly synchronised via app / connected to the internet.Show in original language (German)CommentGonzi892 years ago000No, the watch tracks independently.Show in original language (German)Comment