Editing Smart card (section)

=====Account information=====

A Complex Card with buttons can display the balance of one or multiple account(s) linked to the card. Typically, either one button is used to display the balance in the case of a single account card or, in the case of a card linked to multiple accounts, a combination of buttons is used to select a specific account's balance.

For additional security, features such as requiring the user to enter an identification or a security value such as a [[Personal identification number|PIN]] can be added to a Complex Card.

Complex Cards used to provide account information have been developed for: 
* Getin Bank, Poland,<ref>{{cite news |last1=Getin Bank |title=Getin Bank – poznaj nową Kartę Display do konta bankowego |url=https://www.youtube.com/watch?v=lek_px4wcXQ |access-date=21 May 2021 |via=YouTube |date=7 June 2013 |language=Polish |archive-date=21 May 2021 |archive-url=https://web.archive.org/web/20210521072345/https://www.youtube.com/watch?v=lek_px4wcXQ |url-status=live }}</ref>
* TEB, Turkey.

The latest generation of battery free, button free, Complex Cards can display a balance or other kind of information without requiring any input from the card holder. The information is updated during the use of the card. For instance, in a transit card, key information such as the monetary value balance, the number of remaining trips or the expiry date of a transit pass can be displayed.