Table 2. Mean absolute percent error (± SD) of the activities undertaken.

Activity	Mean Absolute Percent Error (%)
	Microsoft Band	Apple Watch	Fitbit Charge HR	Jawbone UP24	Bodymedia Armband	Actiheart
Typing	20 ± 19	47 ± 36	20 ± 18	18 ± 16	19 ± 15	23 ± 15
Dishwasher	54 ± 12	34 ± 16	23 ± 14	52 ± 18	71 ± 52	25 ± 19
Sweeping	45 ± 16	30 ± 16	39 ± 44	39 ± 21	75 ± 59	25 ± 20
Stairs	62 ± 9	29 ± 19	15 ± 14	29 ± 11	20 ± 11	20 ± 16
Walk	37 ± 17	24 ± 18	73 ± 29	27 ± 16	18 ± 14	13 ± 12
Loaded walk	49 ± 16	14 ± 13	48 ± 23	14 ± 10	27 ± 21	12 ± 11
Cycle	38 ± 24	20 ± 18	53 ± 23	82 ± 2	21 ± 19	28 ± 17
Run	18 ± 15	22 ± 16	16 ± 13	29 ± 21	15 ± 14	13 ± 10
Mean	40 ± 16	27 ± 19	36 ± 22	36 ± 14	33 ± 26	20 ± 15