Table A1.

The list of questionnaire items.

Dimension		Questionnaire Items
technology readiness	optimism	I know well of my health state with smart bracelets.
		2.I am interested to use smart bracelets.
		3.I believe that smart bracelets would follow my instruction.
	innovativeness	4.I would like to buy smart bracelets.
		5.I can use smart bracelets without others’ help.
		6.I am usually the first one among my friends using technological products.
	discomfort	7.Many functions of smart bracelets are not handy.
		8.The professional terms in smart bracelets are hard to comprehend.
		9.It would need a lot of time for learning smart bracelets.
	insecurity	10.I worry about smart bracelets leaking my personal information.
		11.I worry about others seeing my health information with smart bracelets.
		12.The data displayed on smart bracelets are correct.
technology interactivity	feedback	13.Smart bracelets would quickly process input data.
		14.The data display on smart bracelets is fast.
		15.I can quickly search the required information through smart bracelets.
	control	16.I have large autonomy to use smart bracelets.
		17.I am aware of the functions of smart bracelets.
		18.I can easily select the functions of smart bracelets.
		19.I can freely select the desired information from smart bracelets.
	entertainment	20.It is attractive to use smart bracelets.
		21.It is interesting to use smart bracelets.
		22.It is pleasant to use smart bracelets.
	connection	23.I would introduce the advantages of smart bracelets to others.
		24.I would recommend smart bracelets when people ask me.
		25.I would encourage relatives and friends to use smart bracelets.
perceived usefulness		26.The use of smart bracelets could increase the health control efficiency.
		27.The use of smart bracelets could effectively improve my health.
		28.The use of smart bracelets could promote the quality of life.
perceived ease of use		29.It is easy to learn the use of smart bracelets
		30.Smart bracelets provide clear instructions.
		31.I would not spend too much time using smart bracelets.
attitude		32.Smart bracelets are reliable.
		33.The use of smart bracelets is a good idea.
		34.I am satisfied with the use of smart bracelets.
intention to use		35.I expect to use smart bracelets.
		36.It is possible that I would use smart bracelets in the future.
		37.I have high intention to use smart bracelets.
technology anxiety	anxiety about equipment operation	38.I am afraid of breaking smart bracelets when I have the chance to use them.
		39.I feel clumsy when others talk about smart bracelets.
		40.I worry about not understanding the use of smart bracelets.
	anxiety about information exposure	41.I worry about the leak of personal data when using smart bracelets.
		42.I worry about smart bracelets not being able to properly protect personal health information.
		43.I am insecure about transmitting data through smart bracelets.