ProteusDevice
XXLSEC Ltd., the developer of the Privecall-TX device, has developed a near-identical, slightly bigger ProteusDevice, which runs the Linux 5.4 based PriveOS. The ProteusDevice handheld device ("not a mobile phone") is said to have very tight security and was developed with secure access in mind.
Background and Linux Handheld Market
The market is seeing more Linux handheld and phones such as the Purism Librem 5, the PinePhone "Braveheart"Â both of which are already in mass production. There are also other computing options with the handheld Pocket Popcorn Computer, which is much like the PocketChip, but decidedly