connect
Try to connect to default wristband.
If error occurred during connection or wristband has been disconnected by some reason then trying to connect will be repeated until disconnect was called.
If there is no default wristband GoBeNotSetException will be emitted.
NOTE:
User must be valid.
Bluetooth must be enabled. If Bluetooth disabled then connection won't be started but Completable completes.
Return
Completable that completes when connection started