Smartwatch vs. medical devices: which wins for heart patients?
NCT ID NCT06671171
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested how well an Apple Watch measures heart and fitness data compared to standard medical equipment. About 50 adults with heart conditions or athletes wore the watch during exercise. The goal was to see if smartwatches can reliably help monitor heart disease.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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50 people
The number who actually took part.
- Started
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Feb 2025
- Finished
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Mar 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Adult patients with congenital heart disease, pulmonary hypertension, heart failure, and coronary artery disease, as well as athletes undergoing cardiovascular assessment
- Ages
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20 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age 20 to 70 years old * Ability to provide informed consent * History of the following cardiovascular conditions * Adult congenital heart disease * Pulmonary hypertension * Heart failure * Coronary artery disease * Athletes undergoing cardiovascular assessment Exclusion Criteria: * Contraindication for undergoing physical exertion including cardio-pulmonary exercise testing (CPX) and 6-minute walk test (6MWT) * Pregnancy * Known allergy to components of the investigational product
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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
Locations
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Department of Medicine Queen Marry Hospital
Hong Kong, Hong Kong
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Other studies related to the condition(s) this trial covers.
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