About a year ago, before the pandemic (remember those days?), a German company called Carbon announced the Carbon 1 MK II, a phone made of carbon fiber. The Carbon 1 MK II was touted as the thinnest and lightest phone in the world.
I've said before that the design pendulum needs to swing away from glass and metal. A carbon fiber phone sounds attractive. But there's no denying that its specs are all terribly outdated.