Apple Watch Series 10 introduces a new sleep apnea feature

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Apple Watch Series 10

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Apple's "Glowtime" event kicked off with a dramatic unveiling of its new, sleeker Apple Watch Series 10, complete with new display, sound, and even health features.

Wedged within announcements of a slimmer screen and new watch faces was a brand new, "breakthrough" health sensor that can monitor and alert users who may suffer from sleep apnea, a condition affecting approximately 1 billion people worldwide.

The sleep apnea monitor utilizes the device's accelerometer, which detects "real-time, motion-based" data to monitor when a user is having a period of disturbed or restless sleep. Combined with other real time health sensors, the watch will then notify wearers if it detects "consistent signs of moderate to severe sleep apnea," as well as resources for consulting a physician.  

It will be accessible on Apple Watch Series 10, Series 9, and Ultra 2.

Bloomberg's Mark Gurman first leaked the announcement before the company's big event, but rumors of the feature have been circulating since last year. At that time, industry insiders believed the Apple Watch could be expanding its health sensors to cover not just sleep apnea, but also diabetes and blood pressure monitoring. It appears mastering sleep is the device's first frontier.

Apple says it's new feature will receive full approval from the FDA and other regulatory bodies soon, and will be available across 150 countries and regions this month, including the U.S., Europe, and Japan.

In February, Samsung introduced the first FDA-approved sleep apnea tracker for its new Galaxy Watch series.

Mashable's currently on the ground in Cupertino for the Sept. 9 "Glowtime" Apple event. Check out our live blog to keep track of all things Apple Watch before, during, and after the event.