If you want to test everything first, you can buy one from DT and just push it out (not injecting it into anyone) and it will work as normal, you can use it to demo/test.
The NFC (the xNT side) works with IOS and Android fine.
Obviously RFID (xEM) won’t as thats not what its for, It’s more of a blank card that can be written on via a 125k cloner ( Remember to read up on the use of a cloner and if it locks the xEM to using that certain brand)
I also suggest grabbing an xFD to know the perfect location for the implant to be tapped (helps staff know before having to rub their hand all over the reader / Trial and Error)
Good Luck! and let us know how it goes, i’m always interested in jobs who look into giving staff the choice of implants