Wireless devices for storing a financial account card and methods for storing card data in a wireless device

A non-transitory computer-readable medium, implemented in a wireless device comprising a card slot, storing instructions that, when executed on one or more processors, cause the one or more processors to:

• generate a menu displaying representations of a plurality of cards on a display of the wireless device, wherein each card of the plurality of cards is associated with corresponding card data;
• receive, from a user input device associated with the wireless device, a selection of a representation corresponding to a card of the plurality of cards;
• reading, using a card reader associated with the card slot, a current card inserted into the card slot;
• determine, based on reading the current card inserted into the card slot, whether the card of the plurality of cards is inserted in the card slot of the wireless device;
• in response to determining that the card of the plurality of cards is inserted into the card slot of the wireless device, automatically update the menu to display the representation corresponding to the card of the plurality of cards;
• in response to determining that the card of the plurality of cards is not inserted in the wireless device, automatically update the menu to display a security prompt requesting a security code;
• and
• input, using a radio frequency identification writer, card data corresponding to the card of the plurality of cards into a radio frequency identification tag and authorize transmission of the card data using the radio frequency identification tag to complete a transaction, based upon determining that the card of the plurality of cards is inserted in the card slot of the wireless device or based on determining that the security code satisfies the security prompt.