e-ink
E-ink is like a screen that doesn’t need batteries and looks like paper. It uses tiny balls that move around when you touch it. It’s super easy to read and doesn’t cost much to make.
I can read it like a normal person, not like a robot with a headache.
It’s so easy to read, even my grandma can use it.
It’s so cheap, I can buy ten of them and still have money left.