The fastest and simplest way to change the brightness of your iPhone's screen is through Control Center. To open Control Center on an iPhone 8 or older, swipe up from the bottom of the screen.

There are a lot of ways you can set the brightness level on your Android phone. We'll show you a few different ways, including using your voice.

Auto-brightness is supposed to make life easier, but sometimes it adjusts your screen at the worst possible time. Turning off these iPhone settings can fix that.

With the help of a keyboard modifier, it's actually possible to make more nuanced quarter-step changes to sound volume and screen brightness using a total of 64 increments.

Too much screen time can ruin your eye health! An expert recommends the 20-20-20 rule, hydration, nutrition and the right screen settings to prevent strain.