Embodiments of the invention include apparatuses and methods that allow a user to wirelessly transmit
payment information from a
mobile device to a point-of-sale terminal by the user performing only a single action or supplying only a single input to the
mobile device. For example, some embodiments of the invention allow a user to assign a default
payment vehicle to a particular key or “pay now” icon of the
mobile device so that activation of the particular key or icon, alone, causes the mobile device to wirelessly transmit information about the default
payment vehicle. In some embodiments of the invention, a user using the single action option of the mobile device does not need to go through an
authentication procedure before the mobile device transmits the default payment information. In some embodiments of the invention, if a user uses the single action option, the mobile device is configured to transmit the payment information without needing to first launch an electronic wallet
software application installed on the device.