[sgbuffett]

These innovations are great but a simple pay wave wireless card is convenient enough.

Or.NFC on phone...these days we bring phone everywhere.

I don't see a need for biometric based payment as you need to surrender your biometrics to a private company....

While there js uniqueness
, there us no guarantee biometrics cannot be spoofed. Otherwise we won't need passports to clear Singapore immigration if biometrics is full proof.