Introduction. The use of Smartphones (SP) in people's daily lives includes the academic context, which could be associated with behaviors incompatible with adequate academic performance, such as SP dependence (SPD) and academic procrastination (AP). Objectives. To analyze the difference of the influence of SDP on AP in Peruvian university according to sex. Method. The Dependency and Addiction to Smartphone Scale and the Academic Procrastination Scale were used, both validated in Peru. Results. The structural regression model evidence that the SPD explains more variance in academic self-regulation in females and a higher percentage of variance in postponing activities in males. Conclusions. SPD has a differential influence on the dimensions of academic procrastination among females and males. © 2023 Elsevier B.V., All rights reserved.