ArticleJMIR formative research2024
Performance of a Wearable Ring in Controlled Hypoxia: A Prospective Observational Study.
Article in JMIR formative research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05920278 (Performance of the Movano Health Ring in a Controlled Hypoxia Study), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Performance of the Movano Health Ring in a Controlled Hypoxia Study: Prospective Observational Study
Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Do Differences in Skin Pigmentation Affect Detection of Hypoxemia by Pulse Oximetry: A Systematic Review of the Literature.Clinical nursing research · 2025Pooled it
- An Adjustable Smart Ring to Monitor Pulse Rate and Peripheral Blood Oxygen Saturation.Annals of biomedical engineering · 2026Article
- Agreement and Accuracy of a Commercial Pulse Oximeter Compared with Arterial Oxygen Saturation During Controlled Hypoxemia in Healthy Volunteers.Medical devices (Auckland, N.Z.) · 2026Article
- Lethal Interactions of neuronal networks in epilepsy mediated by both synaptic and volume transmission indicate approaches to prevention.Progress in neurobiology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOver recent years, technological advances in wearables have allowed for continuous home monitoring of heart rate and oxygen saturation. These devices have primarily been used for sports and general wellness and may not be suitable for medical decision-making, especially in saturations below 90% and in patients with dark skin color. Wearable clinical-grade saturation of peripheral oxygen (SpO
objectiveThis study aimed to determine the SpO
methodsWe performed a single-center, blinded hypoxia study of the test device in 11 healthy volunteers at the Hypoxia Research Laboratory, University of California at San Francisco, under the direction of Philip Bickler, MD, PhD, and John Feiner, MD. Each volunteer was connected to a breathing apparatus for the administration of a hypoxic gas mixture. To facilitate frequent blood gas sampling, a radial arterial cannula was placed on either wrist of each participant. One test device was placed on the index finger and another test device was placed on the fingertip. SaO
resultsFor the 11 participants included in the analysis, there were 236, 258, and 313 SaO
conclusionsThe wearable ring meets an acceptable standard of accuracy for clinical-grade SpO
trial registrationClinicalTrials.gov NCT05920278; https://clinicaltrials.gov/study/NCT05920278.
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Registered trials
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