With the development of the economy, people have a strong interest in healthy living due to the increase of national income and the improvement of lifestyle. Wearable devices can quantify and measure daily data such as exercise, diet, heart rate, and sleep through sensor technology, making it easier for people to grasp their own health. This paper focuses on the satisfaction and continued use of smart wearable devices: In recent years, the number of people who have begun to pay attention to personal health has increased dramatically. Combined with the characteristics of products and users, this study established a TAM (Technology acceptance model) model of smart wearable devices based on health management, represented by the most familiar wrist smart wearable devices. Variables included social support, perceived curiosity, hedonic motivation, sources of health information, ease of use, usefulness of use, including satisfaction and intention to continue using; the moderator was trust in online evaluations. In 347 surveys, SPSS 23.0 and AMOS 24.0 were used to analyze and draw conclusions. Among the research hypotheses proposed in this study, the verifications are as follows: social support, perceived curiosity, health information orientation, ease of use directly affect usefulness, and hedonic motivation does not affect usefulness. Perceived curiosity and hedonic motivation affected ease of use, while social support and health information orientation did not. The usefulness and ease of use directly affect satisfaction, and satisfaction directly affects willingness to continue using. In studies of the moderating effect of positive online reviews, the relationship between the effect of use usefulness on satisfaction and satisfaction with continued use intentions has been validated, while the effect of ease of use on satisfaction has not been validated. Reliance on web reviews moderated the relationship between satisfaction and usefulness to use, as well as between satisfaction and continued intention to use, and between satisfaction and ease of use. Trust does not play a moderating role. This study introduces new elements from previous studies for consumers who have experience in using wearable devices. In future studies, new variables such as health information orientation and online reviews can be added according to the special circumstances of wearable devices. With the popularity of wearable devices and the growing interest of scholars in wearable devices, future research can further study how users' intentions towards wearable devices are transformed into behaviors, further enriching theoretical research in the field of wearable device behaviors. Although this study is not yet complete, most of the existing data use online favorable comments as the dependent variable, and this study as the adjustment variable. Wearable devices are new technology products with great potential for future development.