S martphones, communication devices, and computers have increased usage habitsduring the pandemic, reaching 210.77 million users in Indonesia in 2021.Smartphones play a crucial role in various fields, including learning and remotework. Technological advancements contribute to user dependency, known asnomophobia, associated with the fear of losing their phones. Research indicatescorrelations with academic performance and varied prevalence related to gender.MethodThis study is an observational analytical research with a cross-sectional design,involving 86 respondents as the sample. Data collection was conducted using theNomophobia Questionnaire, which has been validated by Yildirim C et al., to assessthe occurrence of nomophobia. Additionally, the questionnaire included questionsrelated to gender and data on report card grades for the second semester of 10thgrade. The collected data were subsequently analysed using the Chi-square test andFisher’s test with a significance level of <0.05.ResultsThis study consisted mostly of female respondents, with 58.3% experiencingmoderate nomophobia. Almost all students who had excellent academicperformance amounted to 98.8% of the total 86 respondents. There is no significantrelationship between academic performance and the incidence of nomophobia(p=0.709). However, there is a significant relationship between gender and theincidence of nomophobia (p = 0.014).ConclusionsThere is no relationship between academic performance and nomophobia. However,a relationship exists between gender and nomophobia.