Can your smartwatch replace a medical heart test? scientists put apple watch to the test
NCT ID NCT07663799
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study checks whether an Apple Watch Series 9 can accurately measure key health indicators—like oxygen levels and exercise capacity—in adults with heart conditions such as congenital heart disease, heart failure, or coronary artery disease. Participants wear the smartwatch during treadmill tests while medical-grade devices also record the same measurements. The goal is to see if consumer smartwatches are reliable enough for clinical use.
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 Series 9
- What this could lead to
- If accurate, smartwatches could help monitor heart disease progression at home, reducing clinic visits.
- What could go wrong
- This is a small, early validation study (20 participants) and may not prove accuracy for all patients or conditions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for APPLE WATCH are added.
By submitting, you agree to our Terms of use
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
Locations
-
Department of Medicine, Queen Mary Hospital
Hong Kong, Hong Kong
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Heart surgery in childhood: a hidden impact on speech and memory?
- Can an AI trained on real heart patients outsmart generic chatbots?
- Digital nurse companion: could an app ease the burden of chronic illness?
- Could continuing a common heart drug before surgery save lives?
- A website designed to steer teens with heart defects away from vaping
- Poles apart? nordic walking may outpace standard rehab for heart failure