That strategy includes developing FDA-cleared features for its wearable products and replacing what are often more expensive purpose-built medical devices. Since 2020, Apple has added a notification service for irregular heartbeats, an atrial fibrillation reader and an electrocardiogram reader to its Apple Watch, according to FDA filings.

The new feature is a free software update for some AirPods models and will be included with Apple's $249 AirPods Pro 2.