Genuinely hope they can find success in that niche. Even if their products never compete with the iPhone in ubiquity, having a domestic company with full stack hardware manufacturing experience is a tremendous asset both to the country and to other companies who aspire to bring their own manufacturing stateside.
You would normally expect to see the magic words "Berry Compliant" if the target market includes that. Not super-clear how mobile phones would fall into that particular regulatory tranche.
EDIT: no, my bad, that only applies to (broadly defined) fabric products.
there are already a series of south korean manufactured, Samsung DoD approved android devices for that market. And similar from General Dynamics, as I recall.
https://www.samsung.com/us/business/solutions/industries/gov...