What happens if you're not carrying your phone for some reason but need to charge something.
What happens when you go to a restaurant or gas station and the guy with your card starts pushing buttons and charges whatever card number pops up?
What happens if you go somewhere that doesn't swipe
What happens if you go online to order something and need the number, expirations date and 3 or 4 digit code?
If you go on a trip and lose 1 card you usually have more. With this, this is the 1 card.
Who knows what they'll charge to replace a card after paying $50 to get it.
Don't get me wrong. I'd love to replace 8 cards (yes, it says max is
with 1, but there are a number of issues, in my opinion.