The Swimmo training watch is a personal device that you can wear every day; however, it is also possible to share your Swimmo with another person. Before doing so, you will need to sync workouts on your account (to make sure they are saved) and reset the watch.
To maintain the best user experience and to avoid undesirable outcomes (e.g., data loss when you forget to sync before resetting), we recommend that Swimmo is used as a personal device.