Several studies concluded that the elderly do not achieve a meaningful user-experience with existing activity trackers because there is a disparity between tracker features and the skills and needs of the elderly. The user-friendliness of an activity tracker is an important feature to start and continue using an activity tracker. The primary explanations for this phenomenon are that trackers provide insight into an elderly individual’s amount of physical activity and increase their awareness of their physical activity. Studies show that incorporating the use of an activity tracker into one’s healthcare can motivate elderly individuals to become more physically active. Barriers that inhibit elderly individuals’ physical activity noted in the literature include a lack of motivation and self-discipline, the assumption that they are already sufficiently active, limited knowledge about the positive effects of physical activity, and a lack of habits. In the Netherlands, 53% of elderly individuals (65+) do not meet the Dutch physical activity guideline even though there is ample evidence that sufficient physical activity can prevent several chronic diseases, reduce the risk of premature death, and decrease the risk of fractures and falls in the elderly. Although activity trackers are mainly used by a young and physically fit population, the elderly could also benefit from the use of an activity tracker. The term smart health refers to mobile applications (apps), wearables, and smartwatches. Smart health has become increasingly popular in recent years as a method of monitoring physical activity, as well as health- and lifestyle-related variables.