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The rapid rise of short-form social media platforms, particularly TikTok, among adolescents has raised concerns regarding excessive use and potential behavioral addiction that may negatively affect mental health and academic functioning. This community engagement program aimed to screen the risk of TikTok addiction among secondary school students in West Jakarta and provide education on healthy digital practices. The program was conducted at one private school in Jelambar, involving 306 students aged 11–18 years. Screening was performed using the TikTok Addiction Scale (TTAS) followed by digital literacy education. A Plan–Do–Check–Action (PDCA) framework was applied to ensure systematic implementation. The mean TTAS score was 39.97 ± 14.24 (range 20–84), indicating diverse levels of TikTok engagement. Female students demonstrated higher scores and wider distribution, suggesting greater vulnerability to excessive social media use. Digital hygiene and screen-time management education enhanced students’ awareness regarding social media addiction risks and appropriate preventive strategies. This program demonstrated the feasibility and effectiveness of TTAS-based screening for early identification of TikTok addiction risk. It highlighted the importance of integrating digital health promotion into school-based mental health programs to support adolescent well-being.

The development of wearable technology, especially smartwatches, opens up great opportunities in preventive health monitoring, especially in rural areas such as Sembung Village, Wringinanom, Gresik, where access to health services is limited. However, this technology is still alien to the local community. Preliminary surveys show that the majority of citizens, including health cadres, have never used or even seen a smartwatch in person, and view it as a luxury and irrelevant item. In fact, the potential of smartwatches as “digital health assistants” is huge from tracking heart rate, blood oxygen levels (SpO₂), stress levels, to physical activity reminders that are essential for early detection of health disorders. This service activity aims to improve digital literacy and adoption of smartwatch technology through a participatory educational approach and direct assistance. Implementation methods include: (1) coordination with the village government and health workers, (2) Interactive socialization using local languages, (3) step-by-step practical training, (4) simulation of application in the field, and (5) pre-test and post-test evaluation of 27 participants (25 health cadres, 1 midwife, 1 nurse). The results showed significant improvements: function understanding from the original value of 1.8 increased to 4.2, consumption interest from the original value of 2.1 increased to 4.0, benefit perception from the original value of 1.9 increased to 4.3, self confidence from the original value of 1.5 increased to 3.8, and digital literacy awareness from the original value of 2.0 increased to 4.1. The hands-on approach proved effective in changing participants ' mindset from skeptical to enthusiastic, proving that the digital divide is not due to incompetence, but the lack of access to contextual education. The implication is that smartwatch has the potential to become a strategic tool for village health cadres in early detection and real-time data-based health education, provided that it is supported by sustainable mentoring.