Table 3 mHealth wearable heart rate metadata checklist 2: potential covariates.

From: Guidelines for wrist-worn consumer wearable assessment of heart rate in biobehavioral research

Control

Technological factors

 Device manufacturer

 Device type

 Device version

 Firmware version

 Hardware (sensor type)

 Sampling rate

 Device reliability and justification for why this level of reliability is adequate for the study design

Participant characteristics

 Age

 Race

 Ethnicity

 Biological sex

 Gender

 Skin tone (e.g., Fitzpatrick skin type) (e.g., Fitzpatrick scale)

 Body mass index

 Wrist circumference

 Wrist placement

 Dominant or non-dominant

 Tight vs loose

 Naturalistic use by participants vs explicit instructions by experimenters

 Medical condition

 Cardioactive medication use