Health TechnologyJanuary 14, 2026·5 min read
By the CIRRUS Editorial Team — how we write and source this
Health data privacy: what wearable companies do with your data
Your sleep, heart rate, and activity data is genuinely valuable — and often not protected the way medical records are.
Health data collected by consumer wearables generally isn't covered by HIPAA, the federal law most people associate with medical privacy protection — HIPAA applies specifically to healthcare providers, insurers, and their business associates, not directly to consumer technology companies.
This means wearable and fitness app data is instead governed primarily by each company's own privacy policy and general consumer protection law — protections that vary significantly between companies and can change with a policy update most users never read.
Aggregated and de-identified health data from wearables is a real commercial product in its own right — sold or licensed for research, insurance risk modeling, and advertising purposes in ways that are usually disclosed only in dense privacy policy language.
Reading the specific data-sharing section of a device's privacy policy before extensive use, and checking what data-sharing settings are opt-in versus opt-out by default, is a reasonable practical step given the gap between wearable data and traditional medical privacy protections.
This article is general health information, not medical advice, and doesn’t replace evaluation by your own physician. Talk to a doctor about anything specific to your own diagnosis or treatment.