Considering all the parts are pretty cheap, the whole device shouldn't cost more than ~20$.
There is no way this wallet will be $20, and I would like to see you make one yourself.
It has camera and removable batteries, and it will be airgapped.
Maybe add few more zeroes for correct pricing sir

Judging by their twitter account prototype is released:
https://twitter.com/FOUNDATIONdvcs/status/1296852586398654465