Let's first talk about the tablet client. With Microsoft Dynamics NAV 2015, the tablet client has been introduced. This means that you can download an app to connect to a web server on your iOS, Android, and Microsoft tablet devices. The design of the tablet client is focused on how you usually hold the tablet—using both hands and holding it like a steering wheel. The design has been done so that you can navigate between screens in an easy way.
The tablet functionalities are based on the Web client. So, this means that whenever you modify something in a page, it will translate into the Web client and the tablet client. The following image shows Microsoft Dynamics NAV on three devices: