RFID Tag IC product Selection

Hello,

I am looking for a passive RFID tag IC. So, the frequency I need is 13.56 MHz.

The IC should not need an external power source. The IC should be able to absorb power from the antenna to power itself and transmit the information. IC should have a power harvesting circuitry inside of it.

Please suggest me some product that matches the description.

I found some choices online. I want to compare it with Sparks Fun.

https://www.digikey.com/product-detail/ … ND/5221981

https://www.everythingrf.com/products/r … 7slic-slix

PS: I am also confused if this above product matches my requirement.