Smartphones are a double-edged sword, bringing convenience and access to new social resources for learning, social interaction, and entertainment, they also bring risks and problems such as smartphone addition, cybersecurity threats and cyberbullying. The study reviews the pros and cons of adolescent smartphone use and proposes the urgent need to enhance digital literacy. It suggests strengthening smartphone management across four levels—individual, family, school, and society, to provide comprehensive, multi-layered support and guidance for adolescents in developing healthy smartphone usage habits.

Cellular phone  /  Tool use behavior  /  Behavior, addictive  /  Adolescent