SA can sync with watch without any server connection (offline), and then, it will upload to Suunto Cloud and 3rd party service (in case the is some configured)
Is the sync problem between watch and mobile or between mobile and server?
@SeifertM usually the display goes fully black if the watch is stationary for some time.
It then thinks it’s not being worn and switches the display off to save energy.
Has been like this from the beginning.
@volkan-kayaalp not sure what you mean. Cadence is displayed. Are you asking about bike? run? what sensor? For a bike you will need a combined speed/cadence sensor, it will not work for seperate sensors.