Everbeat is a finger-worn ring that has a built-in electrocardiogram (ECG). In this study the investigators ensure that the ECG as read by the everbeat correctly classifies heart rhythms and detects atrial fibrillation. Investigators will also correlate the everbeat ECG waveform with a clinical-grade FDA approved electrocardiogram to ensure it may be reliably interpreted by clinicians or other algorithms.

In this study the participant will obtain a simultaneous electrocardiogram from both the everbeat ring system and a clinical-grade diagnostic ECG machine for correlation and analysis.

Inclusion Criteria:

• 18 years of age or older

Exclusion Criteria:

• Presence of pacemaker or defibrillator
• Inability to wear a ring in size range available

Patients with or without cardiac arrhythmic history who are 18 years or older and do not have an implanted cardiac device.

Single study