Hey @Tibu
I saw you are offering interesting new Satochip blank card in form of SIM card for making our own hardware wallet with Satochip code.
If anything happening if this SIM card is entered in old smartphone, or we still need to use card readers and laptops for this card?
And is there any other difference compared with other Satochip products?
I think this is very cool idea

https://satochip.io/product/satochip-diy-and-developers-card-sim/Hey,
Sorry for the long-delayed reply...
Yes, you will need a chip card reader or a sim reader to read the chip. In fact, the phone SIM reader could be enough but I doubt you will be able to interract with it directly from a computer and there is no specific mobile phone application to allow such a use.