Table 1.

Activity devices details, set up parameters and analysis software.

Device	Retail price ($)	Steps	Distance	Energy expenditure			Sleep time			Active time		Wear site		Setup parameters	Software
				Basal	Activity	Deep		Light							Setup	Analysis
GT3X+ (ActiGraph)	249.00	xa	—b	—	x	—		—	x		hip, wrist		Hc, Wd, sex, DOBe, 30 Hz, 60 s epoch		Actilife V6.0	Actilife V6.0
Amazfit (Huami)	43.46	x	—	x	x	x		x	—		wrist		H, W, sex, DOB		Midong iPad app	Midong iOS app
Bong 2s (Meizu)	18.75	x	—	—	x	x		x	x		wrist		H, W, sex, DOB		Bong iPad app	Bong iOS app
Flex (Fitbit)	130.52	x	x	+f	+	—		—	x		wrist		H, W, sex, DOB		Fitbit iPad app	Fitbit iOS app
Vivofit (Garmin)	72.53	x	x	x	x	x		x	—		wrist		H, W, sex, DOB		Connect iPad app	Connect iOS app
GOLiFE Care-X (GoYourLife)	28.78	x	x	+	+	x		x	—		wrist		H, W, sex, DOB		GOLiFE Fit iPad app	GOLiFE Fit iOS app
B2 (Huawei)	116.13	x	x	—	x	x		x	x		wrist		H, W, sex, DOB		Huawei wearable iPad app	Huawei wearable iOS app
UP3 (Jawbone)	159.74	x	x	x	x	x		x	x		wrist		H, W, sex, DOB		UP iPad app	UP iOS app
Shine 2 (Misfit)	116.13	x	x	+	+	x		x	x		wrist		H, W, sex, DOB		Misfit iPad app	Misfit iOS app
Loop (Polar Electro)	142.44	x	x	+	+	x		x	x		wrist		H, W, sex, DOB		Polar iPad app	Polar iOS app
Pulse O2 (Withings)	137.8	x	x	+	+	x		x	—		wrist		H, W, sex, DOB		Withings iPad app	Withings iOS app
Mi Band 2g (XiaoMi)	21.66	x	x	—	x	x		x	x		wrist		H, W, sex, DOB		Xiaomi Sport iPad app	Xiaomi Sport iOS app

^ax: feature present.

^b—: feature absent.

^cH: height.

^dW: weight.

^eDOB: date of birth.

^f+: sum of basal and activity energy expenditures.

^gDevice no longer on the market.