Interaction is an area of ​​social research that continues to grow as new ways of communicating are continually developed. Face-to-face interaction as the oldest form of interaction has obviously been the topic of much literature, there is less literature that talks about interaction mediated through devices such as mobile phones (Rettie, 2009). The growing adoption of such devices makes this an ever-expanding area of ​​research for many disciplines; a search of the term "smartphone" in any academic database such as JStor returns results that discuss their application to law, to health services, to their role in education, as a means of marketing, as a new method for social and psychological research, l The list continues UP. So the key question is: with all its possibilities, has the smartphone become indispensable? The smartphone trend is only expected to grow, the rate of adoption is outpacing all other portable digital devices in history (Chun, Lee, & Kim, 2012), with estimates that by 2016 there will be approximately 10 billion smartphones in the whole world (more than the number of human beings) (Financial Management, 2012). In 2010, 90% of the world's population had access to mobile networks (Bolin, 2012); in 2013 there were 82.7 million mobile phone subscriptions in the UK (Ofcom, 2013). A study of adolescents (12-17 years old) and their smartphone use in the United States showed that usage increased over two years; the average number of SMS went from 50 SMS per day in 2009 to 60 per day in 2011, with a more drastic increase for older teenagers, the increase for 14-17 year olds went from 60 per day to 100 per day in the same period. two-year period (Lenhart, 2012). In the study, 63% of teenagers said they exchange messages every day with people in their lives, 39% would use the phone to... in the middle of a sheet of paper... nymphographic/first-number/rise-smartphone [Accessed: 04/13/2014]Lenhart, A., 2012. Teens, smartphones and texting. Pew Research Center's Internet and American Life Project. [online] Available at: http://www.pewinternet.org/files/old-media//Files/Reports/2012/PIP_Teens_Smartphones_and_Texting.pdf [Accessed: 04/13/2014]McCafferty, D., 2013. Smartphone Addiction Reaching new heights. [online] Available at: http://www.cioinsight.com/it-strategy/mobile-wireless/slideshows/smartphone-addiction-reaching-new-heights.html [Accessed: 13/04/2014]Ofcom, 2013. Ofcom facts and figures. [online] Available at: http://media.ofcom.org.uk/facts/. [Accessed: 13/04/2014] Rettie, R., 2008. Mobile phones as network capital: facilitating connections. Mobility. 3(2) pp.291-311Rettie, R., 2009. Mobile phone communication: Goffman's extension to mediated interaction. Sociology. 43(3) page.421-438