Accuracy of the Apple Watch Oxygen Saturation Measurement in Adults: A Systematic Review.

Windisch, Paul; Schröder, Christina; Förster, Robert; Cihoric, Nikola; Zwahlen, Daniel R (2023). Accuracy of the Apple Watch Oxygen Saturation Measurement in Adults: A Systematic Review. Cureus, 15(2), e35355. Cureus 10.7759/cureus.35355

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The purpose of this review is to summarize the research on the accuracy of oxygen saturation (spO2) measurements using the Apple Watch (Apple Inc., Cupertino, California). The Medline and Google Scholar databases were searched for papers evaluating the spO2 measurements of the Apple Watch vs. any kind of ground truth and records were analyzed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The five publications with 973 total patients that met the inclusion criteria all used the Apple Watch Series 6 and described 95% limits of agreement of +/- 2.7 to 5.9% spO2. However, outliers of up to 15% spO2 were reported. Only one study had patient-level data uploaded to a public repository. The Apple Watch Series 6 does not show a strong systematic bias compared to conventional, medical-grade pulse oximeters. However, outliers do occur and should not cause concern in otherwise healthy individuals. The impact of race on measurement accuracy should be investigated.

Item Type:

Journal Article (Review Article)

Division/Institute:

04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Clinic of Radiation Oncology

UniBE Contributor:

Cihoric, Nikola

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2168-8184

Publisher:

Cureus

Language:

English

Submitter:

Pubmed Import

Date Deposited:

29 Mar 2023 10:18

Last Modified:

02 Apr 2023 02:15

Publisher DOI:

10.7759/cureus.35355

PubMed ID:

36974257

Uncontrolled Keywords:

apple watch digital health oxygen saturation pulse oximetry telehealth wearables

URI:

https://boris.unibe.ch/id/eprint/180906

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