The Apple Watch spO sensor and outliers in healthy users.

NPJ Digit Med

Department of Radiation Oncology, Kantonsspital Winterthur, Winterthur, Switzerland.

Published: April 2023

AI Article Synopsis

  • A study examined how often the Apple Watch gives spO2 readings outside the normal range in healthy people at rest.
  • In the study of 38 participants, 14% of the Apple Watch measurements were below 95% spO2, but none went below 92%.
  • The findings indicate that irregular readings from the Apple Watch are not alarming for healthy individuals.

Article Abstract

It is unclear how frequently the Apple Watch produces spO measurements outside of the normal range in healthy individuals at rest. We conducted a head-to-head comparison in 38 healthy individuals between two watches and two medical-grade pulse oximeters. Fourteen percent of watch measurements yielded spO values below 95%, with no values below 92%. Results suggest that outliers measured by the watch should not be a cause for concern in otherwise healthy individuals.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10082785PMC
http://dx.doi.org/10.1038/s41746-023-00814-xDOI Listing

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