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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Apple: White iPhone 4 Models Set for 'Second Half of July' Availability
Apple has just issued a brief press release addressing availability of white iPhone 4 models, which are now set to launch in "the second half of July" due to manufacturing challenges.
White models of Apple's new iPhone 4 have proven more challenging to manufacture than expected, and as a result they will not be available until the second half of July. The availability of the more popular iPhone 4 black models is not affected.