A communication apparatus includes: a first type communication unit configured to perform communication with a portable device in a near field communication mode; a display unit; and a control device configured to perform: a receiving process of receiving a radio wave for connection with the portable device in the near field communication mode, from the portable device through the first type communication unit; and a display process of controlling the display unit to display a notice for prompting a user to perform operation for permitting the portable device to transmit information to the communication apparatus in the near field communication mode, in response to receipt of the radio wave in the receiving process.