I visited their site and I think we got something wrong. It's not a "SIM card wallet", you don't insert it in a SIM card slot. In fact, on their website, it's mentioned nowhere the word SIM.
And then look at about the 55 second mark of
the video on the "About" page... and watch as the device is inserted into the SIM Tray...
On
the original Kickstarter page, it also mentions:
Compatible with iOS* devices supporting fingerprint and facial recognition authentication and Android devices with fingerprint authentication technology and dual SIM tray.
it is necessary a chip accessory for iOS. The accessory comes with the VaultTel Chip for IOS devices.
I think it's much better than inserting it in a sim, so if they can only use their dongle then you can separate in case you will not use it, it's a better innovation than a USB, I'm sure it will be adopted widely by cryptocurrency holders all over the world but the price is not attractive to average investors.
Why do you think it is a better innovation than USB? We don't need "another standard"
USB is an already widely adopted standard compatible with a lot of devices... most current devices (excluding iOS devices) already support USB-OTG... Apple just loves their proprietary connectors like "lightning" so they can sell overpriced apple-only accessories and further lock users into their ecosystem
I seriously doubt that this system will be adopted widely.