Developments in information technology and tangible computing facilitate the human’s life by inventing Self Service Technologies SSTs where it changed the way we interact with the environment as well as new technologies did. Nowadays, a lot of new technologies have embodied computer inside such as smartphone and computer tablets. Previous studies in adoption of SSTs research treat customer behavior towards technology based services. However, recent studies recognize that participants have different attitude towards different technologies even if these technologies used to support the same service. Therefore, in our thesis we are going to study the effect of smartphone i.e. iPhone and computer tablets i.e. iPad on adoption of three services of SSTs Internet Banking, Online Shopping and Self Check In Machine at Airports. Is there any hesitation while people adopting with this technology? If yes, why does it happen? Our data were collected by conducting a pilot and empirical study via using quantitative and qualitative approaches. We conducted our study at Umeå, Sweden. The study findings present the effect of adoption through age, family, friends, money, knowledge, using technology in public and private places, mobile technology and computer tablets, and Interface design on adoption SSTs. We found that participants were influenced by new technology for adopting SSTs. Participants did not use Online Shopping as much as they use Internet Banking, especially in the private places. Concerning the Self Check in Machines, participants were differential in which some tend to use it and others did not.