Steven Aquino, Forbes, first on Apple Pay:

Apple Pay was not only more secure (more on this below), it also was fast and easy—no longer did someone need to fumble through their wallet to find their credit card. All that was needed was to place your iPhone (or Apple Watch) near the NFC reader, and the transaction is done.

And:

People with fine-motor delays, for instance, are saved from the friction of not only finding their physical card, but also inserting it into the chip reader.

Now on to the Amazon One palm reader:

Whether Amazon One gains wide adoption is obviously an open question, but it’s not difficult to see where Amazon has leveled up on usability from an established player like Apple Pay, theoretically at least.

Still, the idea of Amazon One as a more accessible payment system is predicated upon the reality that many people with disabilities have trouble manipulating everyday objects. Thus, Amazon One completely removes such a barrier by letting the person literally do the paying.

This is an interesting distinction. From an accessibility standpoint, using your palm on a reader (assuming the reader is well marked and itself is accessible) is a step easier than Apple Pay. The price you pay is in privacy.

Interesting read.