The main emphasis of Aurora OS is ABSENSE of backdoors and Trusted Platform with MDM certified to be protected from evil entities (such as Google, Apple, CIA, NSA…). The devices can be locked (100% controlled by the corporate MDM system) and unlocked (private, which is a very new development). The OS is certified to handle classified/secret info and be used at places like government, nuclear powerplants, etc.
The F+ phone hardware itself seems to be a rebranded Chinese phone UleFone Armor X8 or its twin brother. Source (Youtube offers translated subs).