| References | Technology | Theory | Method | Variables |
| [19] | Smartwatch | N/A | Qualitative study | “Perceived usefulness, perceived ease of use, enabling technologies, functionality, complementary goods, continuous usage intention” | [21] | Wearable device | UTAUT | Survey | “Performance expectancy, hedonic motivation, privacy concern, facilitating conditions, hedonic, trust, effort expectancy” | [6] | Wearable device | Extended TAM | Survey | “Hedonic motivation, social influence, risk, functionality, perceived ease of use, visual attractiveness, perceived ease of use, brand name, perceived usefulness” | [22] | Wearable device | Reference group theory, TAM, and health belief mode | Survey | “Health belief, perceived convenience, health belief, perceived usefulness, perceived credibility, consumer innovativeness, perceived interpretability” | [2] | Wearable device | Privacy calculus theory | Survey | “Perceived privacy risk (information sensitivity, perceived prestige, legislative protection, personal innovativeness legislative), perceived benefit (perceived informativeness, functional congruence), adoption intention, actual adoption” | [23] | Smart glasses | Extended TAM | Survey | “Complexity, self-efficacy, usefulness, health concern, ease of use, risk, intention, external influence” | [24] | Smart glasses | Extended TAM | Survey | “Hedonic motivation, perceived ease of use, perceived usefulness” | [25] | Fitness wearable | N/A | Focus group | “Perceived effort, utilitarian benefits, gender, physiological traits, social influence, hedonic” | [26] | Wearable device | Extended UTAUT | Survey | “Facilitating conditions, social influence, trust, performance expectancy” | [27] | Smart glasses | TAM | Survey | “Technology risk, perceived usefulness, privacy, hedonic motivation, image, perceived ease of use, norms” |
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