Table 3.

Definitions of factors in the conceptual model.

Construct	Definition/Explanation
Performance expectancy	Degree to which adopting health care wearables will bring effectiveness to users in improving their health condition, which includes monitoring daily physical conditions, making personal health care plans, and reducing health-related threats.
Hedonic motivation	Pleasure or enjoyment derived from adopting and using health care wearables, such as enjoying the technical functions of the devices, sharing data with peers, and feeling of accomplishment after reaching the training goals.
Effort expectancy	Degree of perceived ease of using health care wearables, which includes wearing the device easily on the body, using other devices such as a smartphone to analyze the data, and understanding the data.
Functional congruence	Perceived suitability of health care wearables to fulfill the functional and basic product-related needs such as price reasonability, esthetics, and ergonomic design.
Social influence	Extent to which a user’s decision-making is influenced by others’ perceptions. These “others” include close relationships such as family members and close friends, important people such as employers or peers, professionals such as physicians, and technical specialists.
Health consciousness	Extent to which individuals have interest in and are aware of their own health condition and degree to which health concerns are integrated into their daily activities.
Perceived privacy risk	Perceived risk of reputation damage or other disadvantages by disclosing personal health data to people/organizations unwittingly.
Country China/Switzerland	Country dichotomy of China versus Switzerland distinguished by different national cultural values.
Behavioral intention	Users’ formulation of conscious use or increasing use of health care wearables.