Continuous Data Collection and Analysis for Stroke Prevention Using a Wearable Sensor

The purpose of this study is to determine whether a wristband that detects your pulse can
detect your heart rate and rhythm similar to electrocardiograms (ECG). These wristbands
detect your pulse based on a technique called "photoplethysmography," (PPG). PPG is a common
method in which an individual's pulse is detected based on a light signature interpreted by
the wristband. Most commercially available heart rate monitors use PPG to determine your
heart rate, but the accuracy is variable.

Inclusion Criteria:

1. Male or female 18 years of age or older with a primary diagnosis of atrial
fibrillation

2. Willing and able to provide informed consent and follow the study protocol

3. Clinically indicated planned restoration of normal rhythm

Exclusion Criteria:

1. Unable to provide informed consent

2. Unable to follow the study protocol

3. Women who are pregnant

4. Subjects with implantable devices (only if participating in phase 2-BodyGuardian
processes/testing)