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GSM SIM form-factor chip-and-PIN card

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What it says in the title.

Very small. Can be carried on a keyring. Smaller than an SD card. Numbers laser etched onto surface.

Needs an adapted physical reader (or a "full-size" carrier card, which are Baked) but uses the same software etc.

Also supports NF contactless payments.

8th of 7, Aug 24 2011


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Annotation:







       It would be very easy to lose. However, if you opted instead for the micro-SIM format, you could have the thing laminated onto one of your incisors, and make payments simply by biting the reader.
MaxwellBuchanan, Aug 24 2011
  

       I would quite like this embedded in a ring, so you press your fist into the card reader.   

       The problem would be getting a good connection to the pins for the duration of the transaction. The only viable solution I can see to this is to have the card reader shaped like a gargoyle whose teeth clamp down onto the ring when inserted and only release once the correct pin has been entered.
mitxela, Aug 24 2011
  

       Not a gargoyle: a lion's head, like the one in Rome, where you put your hand in its mouth, and make a statement, and, if you lie, it bites your hand off: "I swear there is money in this account to cover the transaction" "I solemnly attest I am the owner of this vehicle" ... chomp. "Aieee! call a doctor!"
mouseposture, Aug 25 2011
  


 

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