10 Best Hidden Features of the Latest iPhone Upgrade: iOS 9.3

Night Shift

Many studies have shown that exposure to bright blue light in the evening can affect your circadian rhythms and make it harder to fall asleep. The feature uses your iPhone SE’s clock and geolocation to automatically adjust the colors in the display to the warmer end of the spectrum after dark to help you get a better night’s sleep. In the morning, it returns the display to its regular settings.

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