Background: The integration of telehealthcare technologies into geriatric care has clear advantages, but poses challenges for key stakeholders, including the telehealthcare service industry, smart device developers, marketers and, of course, users. The purpose of this study was to gain insight into user experience and acceptance of telehealthcare technology in Taiwan. Materials and Methods: Taking an integrated mixed-methods approach, 51 participants - 33 women (64.71%) and 18 men (35.29%) (mean age: 52.1 years) - were examined before, during, and after using a telehealthcare device. A questionnaire was used to assess users' acceptance of the technology. Interviews were conducted to gather feedback. Results: The quantitative analysis revealed that (1) effort expectancy and relatives significantly influenced users' behavior intentions, (2) error and memorability significantly affected users' satisfaction, and (3) intention and satisfaction significantly affected users' behavior. The qualitative analysis revealed two key implications. First, participants generally were not satisfied with the telehealthcare device. Second, participants suggested the redesign of the telehealthcare device to reduce operating errors and time consumption to meet users' needs. Conclusions: Contemporary telehealthcare devices do not meet users' needs. Participants were made to adapt to the equipment rather than the equipment tailored to meet their needs. Although there were key benefits from home telehealthcare, the systems require enhanced technology, improved usability, and an expanded scale of services backed by government before widespread implementation can successfully proceed.