heart rate
The feature uses a smartphone camera and flash to calculate a user's heart rate.
The non-prick device can measure blood glucose and monitor blood pressure without pressure cuffs.
As indicated by the FDA, the system can estimate pulse rate, heart rate, respiratory rate and/or breathing rates.
The new wellness features use machine learning to observe subtle changes in chest movement or blood coloration, and are slated to drop for Pixel device users in the next month.
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 new investigation also found substantial differences between the performance of specific devices, with consumer products generally outperforming research wearables.
CEO Hind Hobeika opens up about the challenges that led to the company's long dip into stealth mode.
After validating smartphone photoplethysmography against in-clinic ECG, UCSF researchers contextualized heart rate data from nearly 70,000 study participants.
Researchers will travel to India and Sierra Leone to test the technology in low-resource settings.