The FlexM1 , woukd be a great option, but they are currently getting an antenna redesign.
I woukd expect it will look similar to the newer PCB style HF Flex implants
like this
I’m not sure of the time frame, but im assuming it will be Soon™
It will still likely have 2 options
gen1a
and
gen2
Heres some more info
The Mifare “classic” S50 1k chip?
For many years the Mifare MF1ICS50 1k chip was used for all kinds of applications as a “secure chip” for everything from access control to stored value cards, and used for making localized payments within closed systems like public transit and laundry services. However, it uses a security mechanism called “crypto1” which is a simple, proprietary encryption mechanism that hardly has anything to do with modern cryptography. It has been broken for many years now, b…
The FlexM1 will couple more easily with readers due to the antenna size
But
The xMagic is awesome, and it includes the T5577 chip as mentioned above.
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