Accuracy of Fitbit Devices: Systematic Review and Narrative Syntheses of Quantitative Data.
Lynne M FeehanJasmina GeldmanEric C SayreChance ParkAllison M EzzatJu Young YooClayon B HamiltonLinda C LiPublished in: JMIR mHealth and uHealth (2018)
Other than for measures of steps in adults with no limitations in mobility, discretion should be used when considering the use of Fitbit devices as an outcome measurement tool in research or to inform health care decisions, as there are seemingly a limited number of situations where the device is likely to provide accurate measurement.