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Table 1 Comparison of consumer- and research-grade actigraphs

From: Validation of minute-to-minute scoring for sleep and wake periods in a consumer wearable device compared to an actigraphy device

  Amazfit Arc Philips Actiwatch Spectrum
Costa $70 $900–1000
Accelerometers MEMS tri-axial Piezo-electric tri-axial
Accelerometer sampling rate 25 Hz 32 Hz
Weight 20 g 31 g
Recording time 30 days 60 days
Battery life (one charge) 20 days 60 days
Light sensor None Yes
  1. aManufacturer suggested retail price at the time of this study. g gram
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Sleep Science and Practice

ISSN: 2398-2683

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