Basically every device Amazon makes was on sale for Black Friday, with one glaring exception: The new, waterproof, Bluetooth-equipped Kindle Paperwhite. So if you were holding out on a deal for all your pool and bathtub reading needs, your patience has been rewarded today with a $30 discount.
source https://kinjadeals.theinventory.com/the-kindle-paperwhite-is-finally-waterproof-and-on-sal-1830967787