This would skip a lot of the regulatory red tape, bring down costs, and make the devices more accessible so they’re in more developers’ hands. They’d have to tether from your primary phone which isn’t ideal, but workable.
But unfortunately, tiny camera is hardest thing and it is not coincidence, that nearly all whales of smartphone industry regularly show outstanding camera on their presentations.
Other things except camera are mostly accessible for Linux community.
As far as I can tell, all currently available models from all manufacturers are based on some Unisoc platform and offer no indication of support for this feature in their manuals. Did you happen to come across any alternatives?
I'm not very keen on KaiOS given the ubiquitous advertising baked into it (which is apparently their business model).
Got it because it was a small, low-cost, dual-sim phone that could also act as a router. It replaced an even lower cost Nokia feature phone.
Don't run apps often enough to be bothered by any advertising.