title_body: Which does have the least glaring minimum-brightness backlight: backlit e-ink readers or tablets? I have the habit of reading a lot in pitch black darkness (before falling asleep), and after a few minutes even the lowest brightness of my tablet (iPad 1) or phone (Samsung Galaxy Pocket) starts to be too much.
  
  I wonder if backlit e-ink devices have a lower minimum brightness, or if it is similar to that of tablets and phones.
  
  I ask mostly because it would be impossible to test this realistically in a shop.
upvoted_answer: I don't know every single ereader on the market, but my Kobo Glo has a lighting that when set at its lowest level don't hurt my eyes at all.
  
  Furthermore its screen is not backlit. Eink screens are different from LCDs, they are an entirely different technology and are not lighted from behind. Usually their lighting is provided by LEDs positioned on the side of the screen, so that the screen receive their light perpendicularly and not directly emits it. In fact, there are also ereaders without any lighting at all, it is a feature separated from the screen itself. 
  
  This way the light is pointing towards the screen and not directly into your eyes, resulting in a comfortable reading.