Currently we are working with plastic devices, however Senslock has ACME family devices.
You can check the presentation in Chinese at
https://bitlock.io/files/Elite5Acme.pdfIs there any advantages compared to Ledger Nano S and Trezor
that have several times lower cost ?
In fact the price with the discount on presale doesn't differ to much from Ledger and Trezor. Unlike those devices BitLock doesn't have a screen and buttons, and the authentication is performed on mobile phone. If you know, both are vulnerable because of insecure chip used for interacting with the screen, when Trezor doesn't have secured kernel at all. In Bitlock all software works within the kernel of smart-card and it is very reliable thing. We protect software from unauthorised copying since 2006 and none of our clients was hacked even by the decapsulation attack.