Chapter 02Technology & Internet

Does dark mode actually save battery?

On OLED screens (most modern phones) yes — dark pixels are literally off. On LCD screens the backlight is always on, so it makes no difference.

Follow-up questions

Is dark mode easier on eyes?

Depends. In dim rooms yes; in bright rooms light mode is often more readable.

Does it hurt sleep less than light mode?

A little, but blue light exposure from any screen close to bedtime still matters.

People also search

  • oled vs lcd
  • dark mode vs light mode eyes
  • battery saving tips