Night mode is an automatic setting which takes advantage of the new wide-angle camera that's in the iPhone 11 and 11 Pro models. It's equipped with a larger sensor that is able to let in more light, allowing for brighter photos when the light is low.
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iPhone 11 Pro Max Outperforms Competing Smartphones to Earn DisplayMate's Highest Ever A+ Grade
DisplayMate tested the iPhone 11 Pro Max's display and found "major" performance improvements compared to the iPhone XS Max's display, including increased peak brightness, improved absolute color accuracy, and slightly lower screen reflectance, all while being up to 15 percent more power efficient.
The iPhone 11 Pro Max is a Very Impressive Top Tier Smartphone DisplayRead the full DisplayMate article for in-depth analysis of the iPhone 11 Pro Max's display and the methodology behind its testing.
Apple has continued to raise the on-screen Absolute Picture Quality and Absolute Color Accuracy of their displays by implementing Precision Factory Display Calibration, moving the overall iPhone 11 Pro Max display performance up to Record Setting Outstanding levels, and setting or matching many Display Performance Records, including Absolute Color Accuracy at a very impressive 0.9 JNCD that is Visually Indistinguishable From Perfect, and almost certainly considerably better than your existing Smartphone, 4K UHD TV, Tablet, Laptop and computer monitor.
The iPhone 11 Pro Max also has a Record Full Screen Peak Brightness of 770 nits, and 820 nits for the typical Average Picture Level of 50%, which is roughly double of most high-end Smartphones. Compared to the iPhone XS Max, the iPhone 11 Pro Max has a number of notable improvements including 17% higher Full Screen Peak Brightness and up to 15% higher Display Power Efficiency.