Trial Search Results

Evaluation of the Use of Apple Watch Features for Identification of Cardiac Arrhythmias

This post-marketing study is conducted to characterize the ability of Apple Watch rhythm analysis software to identify Atrial Fibrillation (AF) and facilitate subsequent clinical evaluation among users who contact AppleCare.

Stanford is currently not accepting patients for this trial.

Lead Sponsor:

Apple Inc.

Stanford Investigator(s):


  • Device: Ambulatory ECG




Inclusion Criteria:

   1. Possession of the following at time of eligibility screening:

      - iPhone (5s or later) with iOS version 12.1.1 or later defined as iPhone model/iOS
      version used to complete screening eligibility.

      - Apple Watch (Series 1-4) with watchOS version 5.1.2 or later defined as Apple
      Watch model/watchOS paired with iPhone used to complete screening eligibility

   2. At least one of the following by self-report before consent:

      - Irregular Rhythm Notification

      - ECG app classification of Atrial Fibrillation

      - ECG app classification of Inconclusive defined as "Inconclusive," "Heart Rate
      Over 120," or "Heart Rate Under 50"

   3. Age ≥ 22 years at time of eligibility screening

   4. Current resident of the United States at time of eligibility screening, and will
   reside in the United States for the length of the study

   5. Proficient in written and spoken English

   6. Valid phone number associated with iPhone, ascertained from self-report

   7. Valid email address, ascertained from self-report

Exclusion Criteria:

   1. Shared iCloud account

   2. Shared AppleWatch

Ages Eligible for Study

22 Years - N/A

Genders Eligible for Study


Not currently accepting new patients for this trial

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Not Recruiting