[citation][nom]xantek24[/nom]depends on the person, if its too bright then you can dim the led and if its to small, i wouldnt recommend anything less than 4.3"[/citation]
Even if you dim the brightness the lcd screen remains too bright. I don't own a kindle, but I fiddled with one, if you want to do some serious reading it's fantastic, way better than any smartphone, slate, computer/laptop lcd. Of course the kindlke screen has a downsize, because it's only good to reading books and worthless for anything else.