The feature is called True Tone flash. When you take a picture with the flash enabled, the iSight camera uses software algorithms to assess the color temperature of the scene. That allows iPhone 5s to ...

As expected, the new iPhone 5S looks very similar to the current iPhone 5, but it has several internal hardware improvements. It will also come in three colors. Apple is in the process of going ...

To invert colors on an iPhone, you'll need an iPhone 5s or later, running at least iOS 11. Since the iPhone 5s dates back to 2013, and iOS 11 to 2017, compatibility shouldn't be a problem.