This study investigates the factors of smart home adoption among young consumers in Ho Chi Minh City, Vietnam, using the Unified Theory of Acceptance and Use of Technology (UTAUT) integrated with Personal innovation factor. A survey of 320 respondents was analyzed using AMOS to examine relationships among performance expectancy, effort expectancy, social influence, facilitating conditions, and personal innovation. Results indicate that perceived usefulness, ease of use, and social influence significantly shape adoption intentions, while personal innovation enhances individuals’ willingness to adopt new technologies. Facilitating conditions further support actual usage behavior. The study extends UTAUT’s applicability to the smart home context in emerging markets and highlights the psychological and technological factors driving adoption. Managerial implications emphasize the importance of designing user-friendly, reliable, and experience-oriented products to encourage adoption and sustain growth in Vietnam’s rapidly developing smart home industry.