I think that a design of smartphone is correct as a small information device, but wrong as a telephone device.

"I feel bad to attach my ear to a plate"

I complained to my senior daughter about that, and she asked me,

"You said it for the sake of a laugh ?"

So I said to her,

"No. I just hate the style to attach my ear to a plate at the bottom of my heart"

she replied

"U-h"

and disappeared to her room.