M-learning, as an educational innovation, has been facilitated by the spread of mobile communications technologies, by the enhancement of the performance of mobile devices. M-Learning includes the possibility to learn anywhere and anytime without permanent physical connection to a wired network. This can be done through mobile and portable devices. Technology and mobile technology in particular, has become an integral part of our lives. The mobile phone can be an educational tool in the teaching and learning process. M-learning is a novelty in the field of education. Mobile learning is still in the research and project stage. However, there are some factors that hinder the implementation of it. On the one hand there are skeptics, those who do not believe in the efficiency and the possibility to impose mobile learning as a new form of education and another factor of braking is the inadequacy of companies' products of telecommunication so that they can be used for pedagogical and training purposes. It should be remembered that both distance learning and e-learning have come to the same endurance, but today they are recognized forms of learning and with incontestable results. This paper emphasizes the concept of M-learning, its features, mobile learning categories and their technologies, the advantages and disadvantages of learning. (c) 2019 Published by Future Academy www.FutureAcademy.org.UK