I am looking for a small mobile device to display a list of sensitive information.
The storage of the device must be encryptable and the user must first enter a PIN to decrypt the storage at boot time and second enter a PIN to authenticate himself in order to use the device.
The size of the device can be up to common tablet size (~10,5''), but the smaller the better.
Moreover, the device must own no wireless interfaces to reduce the possible attack surface. As a consequence it is only possible to I/O with the device via a wired interface (which should be a common type, e.g. USB).
For the usage, the device should provide a touch screen, but this is not mandatory. Another kind of user interface interaction would also be ok.
Budget does not play a role.
Background to this is as follows: I already tried to realize this via a Samsung Galaxy Tab S2 (gts28vewifi aka SM-T713) for which I have modified the LineageOS sources and build a custom variant that does not have WIFI and BT. But I failed as the device restarts after some time during the boot. Most likely this is because the WIFI system is not found or some related consequences caused by removing WIFI and BT from the build.
Thank you for your tips and suggestions. If more information is necessary or I forgot something important, I will edit my question, of course. Maybe there is another possibility to satisfy those requirements I am not aware of at the moment :)