The problem with "screen-free" isn't the chassis design, it's information bandwidth. Eyes intake information orders of magnitude faster than ears. Reading a list of 5 restaurants takes 3 seconds, whereas listening to it via a voice assistant is 30 seconds.

Unless Ive has invented a fundamentally new interface (neither voice nor screen), this device is doomed to be another beautiful but useless accessory, like the Humane Pin. Design can't beat the physiology of perception