The hard reality is that there is no PAYING market for such a device, because when it comes to the point-of-sale, most people still choose the normal-size device with better screen/battery/camera. This is equivalent to something I called the "QWERTY paradox" more than a decade ago: Back when the Smartphone market exploded, people disliked typing on a touchscreen and repeatedly stated that they want a device with a ph…
Which is a shame, because I can sympathize with most of these requests.
I want something like Kick-starter which operates the same way but isn't meant for funding the creator to get the upfront capital investment - just avoiding existing companies getting burned out of the "let's listen to a niche slice of our customers instead of appealing to the masses" mindset. Companies put up a weird product proposal and see if enough people will commit to buying it to at least break even.
Then, if there's enough of a commitment, those people get something they actually want. If there's not enough, then there's a specific reason that you can point to to explain why.
This is almost equivalent to the normal market model (people buy things they want, and niche products don't get made much), except with a more explicit feedback step, to help people realize that if they don't actually put their money where their mouth is, then things won't get made.
There's probably a better way to do this, but I'm not sure how. Ultimately I just want my non-electronic electric car.