• For the sRGB/Rec. 709 and DCI-P3 Color Gamuts, the iPhone 12 Pro Max has a Record calibrated Full White Screen Brightness of 825 nits. With adjustments in Average Picture Level APL, the Screen Brightness changes by less than 1%, which is quite significant and outstanding.
• The rounded corners of the iPhone 12 Pro Max display follow a gorgeous curved design and are contained within a normal rectangle. The screen is 6.68 inches diagonally when measured in a typical rectangular shape (the actual viewable area is less)
• If you have an iPhone 12 or iPhone 12 Pro, you've probably noticed that your screen has started to become yellow or green. It can also be a paperwhite colour at times. If you're having trouble with your OLED screen, you're not alone; hundreds of users have reported the problem to Apple.

Read More: Does an iPhone 12 even need a screen protector if the glass is so strong?