This article aims to identify different ways of using mobile devices in students' learning in higher education. This qualitative research presents the findings from a phenomenographic research of students' conceptions of mobile learning (m-learning) in higher education. A cohort of 16 students from four universities of Bangladesh took part in semi-structured interviews to explore their in-depth understandings and experiences of m-learning. The findings indicate that university students perceived five qualitatively different ways of using mobile devices in their learning: a medium for communication; a medium for management of learning materials; a tool for effective learning; a means for collaborative learning; and a means for development of new ideas. The findings of this research demonstrate students' pedagogical understanding of using mobile devices in higher education. The outcomes of this research could play a crucial role in informing students on how they can use their mobile devices for learning purposes and providing educators with empirical evidence on students' pedagogical practices of using mobile devices in other developing and more developed countries in the world.