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FAQ: Cuffless Blood Pressure Technology in Wearables - Promise and Limitations
TL;DR
The American Heart Association's statement reveals that cuffless blood pressure devices currently lack proven accuracy, creating an opportunity for companies to gain market advantage by developing validated, reliable technologies.
Cuffless devices use light or force sensors to estimate blood pressure, but accuracy is affected by calibration, arm position, skin color, and activity levels, requiring standardized validation protocols.
If properly validated, cuffless blood pressure technologies could expand hypertension screening and treatment in under-resourced communities, potentially reducing cardiovascular disease and saving lives worldwide.
Smartwatches and rings that measure blood pressure show promise but aren't yet reliable for medical decisions, with up to 80% of devices lacking formal accuracy testing.
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Cuffless blood pressure devices are alternatives to traditional arm-cuff monitors that include smartwatches, rings, patches, and fingertip monitors for measuring blood pressure.
They have not been proven accurate or reliable enough for real-world use during exercise, sleep, daily activity, or after taking medication that affects blood pressure, and variables like arm position, skin color, and calibration timing can affect results.
The American Heart Association published the scientific statement in their journal Hypertension, which supports recommendations in the 2025 AHA/ACC High Blood Pressure Guideline.
Cuffless devices are easy to use, convenient, and capable of frequent or continuous monitoring, potentially providing insights into blood pressure changes during daily life and sleep.
More research and standardized validation protocols are needed to address notable limitations and demonstrate greater precision and reliability.
High blood pressure affects nearly half of U.S. adults (about 122 million people) and is the #1 modifiable risk factor for cardiovascular disease, making accurate monitoring crucial.
According to Dr. Jordana Cohen, chair of the scientific statement writing group, 'the speed of commercialization has outpaced the science' behind cuffless blood pressure devices.
The content links to the American Heart Association's resources on high blood pressure facts, heart attack, stroke, and heart failure information at https://www.heart.org.
Curated from NewMediaWire
