Table 2.

Descriptive statistics of System Usability Scale scores.

Group	Product Start	n	Start	SD	End	SD end	Min start	Max start	Min end	Max end
Client	Charge 3	16	56.88	20.01	60.31	18.66	15.00	90.00	15.00	82.50
Client	vívosmart 4	7	66.43	16.00	67.86	17.82	45.00	87.50	47.50	95.00
Client	Spire Stone	3	64.17	10.10	63.33	14.65	55.00	75.00	52.50	80.00
Client	TicWatch E	5	51.50	8.59	57.50	27.33	37.50	60.00	20.00	82.50
Staff	Charge 3	15	69.17	10.42	75.50	12.00	55.00	87.50	55.00	92.50
Staff	vívosmart 4	14	74.11	5.24	76.25	8.31	65.00	82.50	65.00	92.50
Staff	Spire Stone	11	64.77	6.56	59.77	20.05	55.00	77.50	12.50	75.00
Staff	TicWatch E	6	70.83	16.93	44.58	13.73	50.00	97.50	30.00	70.00