92 percent
The percentage of Americans who own a cellphone, according to a 2015 survey by the Pew Research Foundation on Americans' views on mobile etiquette. Thirty-one percent of those cellphone owners said they never turn their phones off and 45 percent said they rarely turn them off.
8/10
The share of adults who say that using phones in social settings frequently or occasionally hurts the conversation, according to the Pew poll.
89 percent
The percentage of cellphone owners who, nevertheless, used their phone at the most recent gathering they attended, according to the Pew poll. But cellphone use isn't always antisocial. Only 26 percent said they used their phone because they were bored or didn't want to participate in the group's conversation. More frequently, they used their phones in social ways, such as the 45 percent who posted pictures or videos of the gathering or the 38 percent who looked up information they thought would be interesting to the group.
77 percent
The percentage of people who think it's OK to use a cellphone while walking down the street, according to the Pew poll. Seventy-five percent think it's OK to use it on public transportation, and 74 percent think it's acceptable when waiting in line. But only 38 percent think it's appropriate at a restaurant, 12 percent at a family dinner and 4 percent at a movie theater.
0.4
The difference in GPA between college students who were on their cellphone all the time (4 to 5 hours per day) versus those who used it less frequently (1 to 1.5 hours per day), according to a study of almost 500 college students (Computers in Human Behavior, 2014). High-use students had an average GPA of 2.8, compared with 3.2 for low-use students. High-use students also reported lower life satisfaction ratings than low-use students.