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.
macOS Catalina Now Available
iFixit's Do-it-Yourself iPhone Battery Replacement Kits to Remain $29.99 Until End of 2019
The repair website lowered the price of its kits in late 2017 to match Apple's discounted iPhone battery replacement fee of $29, which ended on December 31, 2018. Apple now charges $49 to replace the battery in the iPhone 6 through iPhone 8 Plus and $69 for the iPhone X and newer outside of warranty.
Apple had lowered its battery replacement fee after controversy erupted about a performance management feature it quietly introduced in iOS 10.2.1. The feature, when enabled, has the potential of slowing down older iPhone models with degraded batteries when necessary to prevent unexpected shutdowns.
Apple CEO Tim Cook said Apple replaced 11 million iPhones in 2018, up from a usual one to two million per year, according to John Gruber.
iFixit's kits include all of the tools necessary to open up an iPhone and swap in a new battery for those willing to give it a try. If the idea of opening up your iPhone sounds uncomfortable to you, it is probably best to stick to the Genius Bar.
Note that do-it-yourself iPhone battery replacements can have warranty implications.