Apple watch could spot hidden heart condition in seniors
NCT ID NCT05686330
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether an Apple Watch can detect atrial fibrillation (a heart rhythm problem) faster than usual methods in people aged 65 and older with high stroke risk. Over 400 participants wore the watch, which uses light sensors and an ECG to check heart rhythm. The goal was to see if the watch leads to quicker diagnosis and treatment.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Apple Watch with photoplethysmography (PPG) and ECG functions
What this could lead to
If successful, this could show that smartwatches help detect atrial fibrillation earlier in high-risk people, potentially preventing strokes.
What could go wrong
The trial is small and completed; results may not apply to everyone. Smartwatch detection may lead to false alarms or unnecessary worry.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Cardiology Center of the Netherlands
Amsterdam, North Holland, Netherlands
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Spaarne Gasthuis
Haarlem, North Holland, 2035 RC, Netherlands