Smartphones are developing rapidly and continually with new features that make them widely used in many contexts. This paper is to reflect on students' behaviours of using smartphones spontaneously (unplanned use) in the classroom, in a university in Dubai city in UAE. This reflection shall address the following questions: How can the instructors integrate smartphones into the classroom? How will they know that the students are using their phones in a way that relates to and enhances their learning? What are the implications and restrictions? The answers to these questions will illustrate that smartphones should be utilised as teaching tools since they support students' learning; and therefore, should be allowed in the classroom.