Final answer:
The iPhone 6s has a screen size of 4.7 inches diagonally. It was announced and released by Apple in September 2015 and is smaller than the iPhone 6 Plus which features in the provided example discussing drop impact.
Step-by-step explanation:
The screen size of the iPhone 6s is 4.7 inches diagonally. The iPhone 6s was part of the eighth generation of the iPhone and was announced and released by Apple in September 2015.
Unlike the iPhone 6 Plus, the iPhone 6s maintained a smaller screen size, which is one of the distinguishing factors between the two models.
The example provided about the iPhone 6 Plus discusses the impact of dropping the phone and the force experienced as a result, which is related to physics and engineering principles.
Such events depend on various factors like height from which the phone is dropped, the material of the screen, and the internal design of the phone that can affect its susceptibility to damage when it experiences impact.