Apple products have what they call AirDrop to send files from one device to another. It’s technically just a bluetooth connection but it is not what we use for syncing.

For SeriousMD, as long as both your iPad and iPad Mini are online with internet, they will sync. AirDrop is just for transferring files so it’s not used for the purpose of syncing data.

If you see this at the bottom bar, it means both are up to date and have finished syncing