$45 on ali. I've been looking for an affordable open phone-sized e-reader for years, but unfortunately this one doesn't have a backlight which is a hard requirement for me.

(I do have a kobo, it's too big.)

The Kobo Clara doesn't fit in my pocket while the X4 does. An e-reader that I actually have on-hand beats one that I leave in a drawer at home so it was an instant purchase for me the moment I saw one.

Yeah, but can you affix a Kobo device to the back of your phone as a signal of your superior taste in how you consume your digital literature?