I think our device is quite unique because it maintains the same security model of "traditional" hardware wallets, while bringing the convenience of using it natively with a smartphone.

It's true that there are many other devices on the market, but most of them can't do what we do. The closest competitors, the other "mobile-native" devices, lack a display, so they are not as secure as Portal because the user can't double check address and amount before confirm a transaction.