Not to mention since it's not in a thin piece of plastic in your wallet it's probably going to be tougher to activate at a distance vs your Visa Card.
-Dave
Actually I was wondering about the possible risks of someone using a device to try to access the funds within the ring itself at a distance. I believe it is already something which happens to holders of NFC credit cards, alledgedly, because I have seen some wallets which advertise themselves as a protection against thieves who seek to exploit such attempts of stealing money.
It would be still a unlikely scenario, but not impossible if we are just talking about a NFC chip embedded in a ring, it would be "safer" if there was some actual "smart" technology within the ring or used an interface linked to our smartphones to sign transactions: it could be a combination of NFC and the typical biometric security which is already offered by most of Iphone and Android devices, using a fragmented private key (like Shamir) between the phone and the ring, so the funds would be safe regardless of the loss of any of them.
Just some random ideas about this product, in the end, those developers could come up with something even more intelligent than relying security on biometric data on the phone.
The NFC in the ring is linked to the wallet in your phone. You need to open the app, authenticate (pin / biometrics), create the transaction, then tap the ring to your phone to verify that it's really you and you want to do this transaction.
You can't recreate1 the wallet with just 1 ring / card and you cant send from the wallet without the ring / card.
1 With the original way there was no seed phrase that you could see / recover your wallet with. Their new app allows that.
-Dave