A navigation device navigating a moving body based on position information includes a coordinated operation unit that initiates and ends a coordinated operation among a plurality of navigation devices; a guiding unit that performs navigation in at least one of the navigation devices performing the coordinated operation, while providing a screen display based on a designated position; and a second operating unit that performs a second operation in a navigation device other than a currently navigating navigation device performing the coordinated operation, the second operation including receiving an operation for a function that is not displayed on the screen of the currently navigating navigation device, and reflecting a position acquired as a result of the operation, to the other navigation devices performing the coordinated operation.