In general, the subject matter described in this specification can be embodied in methods, systems, and program products. A mobile computing device is determined to have electrically coupled by physical contact with a docking system that is adapted to supply electrical power for charging the mobile computing device. The docking system is determined to be a first type of docking system from a plurality of types of docking systems. A first user interface profile that corresponds to the first type of docking system is selected from among a plurality of user interface profiles. Each of the plurality of user interface profiles corresponds to a respective type of docking system from the plurality of types of docking systems. The first user interface profile is presented by the mobile computing device in response to selection of the first user interface profile.