Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers

Abstract The widespread adoption of consumer wearable devices has enabled continuous biometric data collection at an unprecedented scale, raising important questions about data privacy, security, and user rights. In this study, we systematically evaluated the privacy policies of 17 leading wearable...

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Main Authors: Cailbhe Doherty, Maximus Baldwin, Rory Lambe, Marco Altini, Brian Caulfield
Format: Article
Language:English
Published: Nature Portfolio 2025-06-01
Series:npj Digital Medicine
Online Access:https://doi.org/10.1038/s41746-025-01757-1
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author Cailbhe Doherty
Maximus Baldwin
Rory Lambe
Marco Altini
Brian Caulfield
author_facet Cailbhe Doherty
Maximus Baldwin
Rory Lambe
Marco Altini
Brian Caulfield
author_sort Cailbhe Doherty
collection DOAJ
description Abstract The widespread adoption of consumer wearable devices has enabled continuous biometric data collection at an unprecedented scale, raising important questions about data privacy, security, and user rights. In this study, we systematically evaluated the privacy policies of 17 leading wearable technology manufacturers using a novel rubric comprising 24 criteria across seven dimensions: transparency, data collection purposes, data minimization, user control and rights, third-party data sharing, data security, and breach notification. High Risk ratings were most frequent for transparency reporting (76%) and vulnerability disclosure (65%), while Low Risk ratings were common for identity policy (94%) and data access (71%). Xiaomi, Wyze, and Huawei had the highest cumulative risk scores, whereas Google, Apple, and Polar ranked lowest. Our findings highlight inconsistencies in data governance across the industry and underscore the need for stronger, sector-specific privacy standards. This living review will track ongoing policy changes and promote accountability in this rapidly evolving domain.
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issn 2398-6352
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publishDate 2025-06-01
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series npj Digital Medicine
spelling doaj-art-69ae252e97f14d83b434c35f4e0f12832025-08-20T02:07:41ZengNature Portfolionpj Digital Medicine2398-63522025-06-018111110.1038/s41746-025-01757-1Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturersCailbhe Doherty0Maximus Baldwin1Rory Lambe2Marco Altini3Brian Caulfield4School of Public Health, Physiotherapy and Sports Science, University College DublinInsight Research Ireland Centre for Data Analytics, University College DublinSchool of Public Health, Physiotherapy and Sports Science, University College DublinDepartment of Human Movement Sciences, Vrije Universiteit AmsterdamSchool of Public Health, Physiotherapy and Sports Science, University College DublinAbstract The widespread adoption of consumer wearable devices has enabled continuous biometric data collection at an unprecedented scale, raising important questions about data privacy, security, and user rights. In this study, we systematically evaluated the privacy policies of 17 leading wearable technology manufacturers using a novel rubric comprising 24 criteria across seven dimensions: transparency, data collection purposes, data minimization, user control and rights, third-party data sharing, data security, and breach notification. High Risk ratings were most frequent for transparency reporting (76%) and vulnerability disclosure (65%), while Low Risk ratings were common for identity policy (94%) and data access (71%). Xiaomi, Wyze, and Huawei had the highest cumulative risk scores, whereas Google, Apple, and Polar ranked lowest. Our findings highlight inconsistencies in data governance across the industry and underscore the need for stronger, sector-specific privacy standards. This living review will track ongoing policy changes and promote accountability in this rapidly evolving domain.https://doi.org/10.1038/s41746-025-01757-1
spellingShingle Cailbhe Doherty
Maximus Baldwin
Rory Lambe
Marco Altini
Brian Caulfield
Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers
npj Digital Medicine
title Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers
title_full Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers
title_fullStr Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers
title_full_unstemmed Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers
title_short Privacy in consumer wearable technologies: a living systematic analysis of data policies across leading manufacturers
title_sort privacy in consumer wearable technologies a living systematic analysis of data policies across leading manufacturers
url https://doi.org/10.1038/s41746-025-01757-1
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AT marcoaltini privacyinconsumerwearabletechnologiesalivingsystematicanalysisofdatapoliciesacrossleadingmanufacturers
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