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The Fitbit Heart Study is looking to enroll 200,000 to 250,000 device owners, and will support clinical evaluation and regulatory submissions of the company's PPG atrial fibrillation algorithm.
The PPG-based feature automatically measures the wearer's heart rhythm every five minutes, and will be ready for integration with a range of devices later this year.
The Belgium-based company's app can render heart rhythm irregularity readings in roughly 60 seconds.
The app monitors heart rhythms via the smartphone's camera and uses AI to identify irregularities.
A smartphone app developed the University of Turku, Finland, detected Turku University Hospital patients’ atrial fibrillation with 96 percent accuracy, without the need for additional phone attachments, according to a study recently published in the journal Circulation.