Technological advancements have allowed mobiles phones to perform various functions with increasingly better performance. However, the use of these devices in educational contexts divides opinions, especially when used in the classroom. Mobile phones can support different pedagogical tasks, but may also be responsible for problems such as distractions during classes. Therefore, such use is still facing resistance in formal education. Considering the scenario described, this paper aims at discussing the use of mobile phones in education with support of data obtained in a survey with undergraduate students and teachers of Mathematics Education at a federal institution. Data showed that the participants' opinions are consistent with the literature, signaling difficulties and benefits of using the mobile phones in education.