Bluetooth connection is lost each morning after having had my iPhone 6S on IOS 12.3.1 on flightmode. I need to open Connect and then de-activate an re-activate bluetooth on my iPhone before connection is re-established and synchronisation starts. This must be a flaw in the Garmin software since it is a problem never encountered with my old Pebble watch nor my wife’s Vivosmart4.
Hoping for a solution so I can avoid this tedious restart procedure each morning.