How to use True Tone and Night Shift on the iPhone and Mac

Your iPhone, iPad or Mac allows you to control the color temperature of your display for a more natural and comfortable experience.

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Does True Tone on an iPhone help block out blue light? - Quora

What is Apple's True Tone display?

How To Permanently Turn On Night Shift On iPhone

True Tone is struggling to recalibrate the brightness. Whenever I adjust the brightness manually it stops working. After a couple of days it goes back to normal condition. Is this a glitch

How to use True Tone on your iPhone or iPad

What Exactly Does True Tone Do on iPhone, iPad, and Mac?

10 Top Tips for Control Center on iPhone and iPad - The Mac Security Blog

BYU Study Suggests Night Shift Mode Doesn't Help iPhone Users Sleep - MacRumors