Over four billion people have a smartphone, which is about 54% of the global population, according to an Internet Connectivity report. In the United States the percentage is dramatically higher, a Zippia research study identified that over 80% (270 million) of Americans own one.In the last 10 years smartphone ownership has skyrocketed among U.S. adults and teenagers, and so has its dependency. Americans average almost five hours a day on their phone, which is an increase of 52% from just a couple of years ago.The data is in. We love our smartphones and cannot imagine living without them! As technology ...