Philipp Rothe 
Smart glasses as the smartphone killer? [PDF ebook] 

Essay from the year 2021 in the subject Engineering — Computer Engineering, grade: 1, 7, Boston University, language: English, abstract: Nowadays, it is hard to imagine a world without smartphones. In 2021, 3.8 billion people worldwide use smartphones, which means about 50% of the world’s total population.
In the developed countries, as many as 75% of adults own a smartphone. Estimates assume that there are more than 14 billion active smartphones worldwide. That is nearly twice the population of the world. To analyse a smartphone more concrete, the paper will focus on the i Phone, which is the flagship product of Apple.