Verily Clinical Study Watch Analytical Validation Study

The Study Watch is an investigational wrist worn wearable device made with biocompatible contact materials containing various sensors capable of continuous recording of physiological, activity, and environmental data.

The Vivalink ECG Patch is a continuously recording ECG monitor and will be used as a reference device for measuring participants' pulse rate, pulse rate variability, and pulse rate coverage. The Vivalink ECG Patch is a medical device manufactured by VivaLNK Inc. and has been cleared by the FDA.

Modus StepWatch 4 is an ankle-worn wearable medical device, and will be used as a reference device for measuring participants' ambulatory time and daily step count. The Modus StepWatch 4 is FDA listed.