Wearable technologies are increasingly integrated into diverse domains of daily life, extending their utility beyond simple activity tracking. In professional and occupational settings, wearables are employed to monitor physical workload, prevent fatigue, and enhance workplace safety through continuous assessment of physiological and environmental parameters. Within educational contexts, they support cognitive monitoring, attention tracking, and adaptive learning environments. In the domain of fitness and sports, wearables provide detailed feedback on physical performance, facilitate personalized training programs, and promote long-term engagement in physical activity. Healthcare applications are among the most prominent, ranging from chronic disease management and rehabilitation to preventive health monitoring and early detection of anomalies. In everyday leisure and lifestyle contexts, wearables contribute to well-being by integrating health-related insights with user-friendly digital ecosystems. The versatility of these application domains highlights the role of wearables as pervasive, context-aware systems that adapt to the specific demands of different environments and user groups.