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As populations age globally, there is a need to refine the understanding of aging beyond simply chronological age. Therefore, this study used the PRISMA framework to synthesize literature on alternative aging metrics beyond chronological age. We analyzed articles from 6 databases (SCOPUS, PsychINFO, Web of Science, CINAHL, Engineering Village, and PubMed) and selected 18 articles that explored factors that lead to older adults’ individual differences. Findings indicated the necessity of a consistent terminology that better describes one’s cognitive and physical functioning, such as “non-chronological age.” Also, the review found that daily cognitive, physical, and social activities may result in different non-chronological ages. A comprehensive tool to measure non-chronological age and thereby provide a more accurate representation of aging that incorporates these critical factors is needed. The findings may contribute to the development of theories in non-chronological age. 

General age-related declines in sensory perception, cognition, and physical abilities may impact older adults’ abilities to maintain independence. The development of smart home technologies can compensate for these declines and assist older adults in their daily lives. This study aims to understand the key challenges and opportunities in designing effective smart home products for older adults. We conducted a virtual focus group with 10 participants (five healthy and five with health conditions) aged 65 to 80 to explore their perspectives on smart home technology. These discussions revealed five key themes: concerns, barriers, perceived benefits, adoption motivators, and future outlook. It was interesting to note the similarities and differences that both groups proposed regarding various aspects influenced by their different health situations. Findings will inform future smart home design decisions and the development of more inclusive smart home solutions that support and empower senior citizens to lead independent and fulfilling lives.