Abstract
One of the most researched topics in education 4.0 is the learning process which is dramatically different from traditional approaches. Since the learners and teachers are suggested to acquire the 21 st century skills, robotic utilizations are needed. This paper discusses the usage of smartphone for students in university bring different circumstance in teaching learning process. Besides, this paper expects to determine how smartphone affects the product of students' achievement and indirectly identify the rationale how it changes the students' and the teachers' ways of thinking. This study was conducted qualitatively as a case study conducted to the postgraduate students of English Department, Mataram University. The data were collected by using observation and interviews. The observation data were analyzed with descriptive procedure identifying how teachers and students used smartphone and how these usages were related with the 21 st century skills. These data were enriched with the interview data where the samples, firstly, recounted on the procedures how they have used their personal smartphones as learning instruments, secondly, evaluated how private learning experiences with the personal smartphone have equipped them with the 21 st century skills, and, thirdly, explicates the nature of the relevant 21 st century skills that they have referred to. The result of this research indicates that one hundred percent of the students have smartphones with 4G signal and almost all class activities use of internet access. The processes of finding materials, making teacher-student appointments, drafting, re-drafting, and submitting assignments were facilitated through smartphones. Such a use of telecommunication devices has indirectly trained students with not only IT-related skills but also critical thinking and problem solving, collaboration, communication, creativity and innovative skills as core skills relevant with the 21 st century.