When in Do Not Disturb mode, text messages that are sent cannot be seen as the watch is shut off from any alerts or notifications. During DND mode, only the screen remains on to show the time to limit distractions. However, the watch can still be tracked by the Parent/Admin during DND and any messages sent will come through as soon as the DND mode time limit is up.
Watch now for more information on setting up Do Not Disturb mode.