[drhuseynov]

JavaCardOS can run in a USB-form factor as well. But that will not be 5USD. https://usasmartcard.com/usb-token/?page=1

In addition to FIDO2, you can add java applet for OpenPGP (also open source), TOTP (https://github.com/JavaCardOS/Oath-Applet) and PIV/smartcard (open source as well). I tell you more - there are tons of JavaCardOS compatible applets available on github etc.

[fmajid]

The Yubikeys also support NFC, which is necessary for U2F authentication on Lightning iPhones.

[drhuseynov]

Sorry I was not clear. Cards have NFC in any case. What is missing in cards is USB