Table 1.

Usability testing as measured by perceived usefulness, perceived ease of use, and satisfaction (n=11).

Survey category		Scorea, mean (SD)
Perceived usefulness		4.45 (0.57)
Perceived ease of use		4.30 (0.59)
Satisfaction
	Wearable device	3.98 (0.70)
	Blood pressure measure	4.03 (0.76)
	Electrocardiogram measure	3.94 (0.92)
	Blood oxygen saturation measure	3.76 (0.96)

^aSurvey items were rated on a 5-point Likert scale, ranging from 1 (strongly disagree) to 5 (strongly agree).