[SonderDesign]

I'm one of the founders, I exited after the acquisition and now work in VC. It's absolutely possible, the custom EPD was $40USD, we used injection molder keys, and a delrin keyframe. The remaining components for the display timing controller and the keyboard controller were dollars each at scale (excluding the TCM chip which was relatively expensive). The entire BOM cost of goods was far under $100, and was comparable to a Macbook butterfly switch keyboard module.

The entire design with Foxconn / it's customers was specifically for MOQ's of 300k units. We did beta units to 40+ countries.

The NRE for the display was also double your estimate and took around 9+ months to get finished + a few months of delays due to terrible yields on the first Mass produced units.