Apple Watch Sleep Apnea Notifications Now Available in Brazil

Apple today announced that the Apple Watch feature to help identify sleep apnea is now available in Brazil following the granting of a license from the Brazilian Health Regulatory Agency.

sleep apnea detection apple watch
The feature, which is now available in over 150 countries and regions, uses the Apple Watch's accelerometer to record wrist movements associated with interruptions in normal breathing patterns during sleep.

Based on the data collected, the feature assesses each day whether your levels of breathing disturbances are elevated or not elevated, and if over a 30-day period it determines the frequency of your elevated disturbances reaches a threshold, you will receive a notification of possible sleep apnea. The notification is not a diagnosis, but it does provide information to help you discuss the situation with a healthcare provider.

The algorithm uses machine learning trained on clinically validated sleep data, with Apple's feature then validated in its own clinical study, which found that 100 percent of study participants who received a positive result from the algorithm indeed had at least mild sleep apnea.

Related Roundup: Apple Watch 10
Buyer's Guide: Apple Watch (Neutral)

Popular Stories

iPhone 17 Pro Render Front Page Tech

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. iPhone 17 Pro's alleged design via Front Page Tech Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone...
iCloud General Feature Redux

iPhone Users Who Pay for iCloud Storage Receive a New Perk

Thursday March 20, 2025 12:01 am PDT by
If you pay for iCloud storage on your iPhone, Apple has a new perk for you, at no additional cost. The new perk is the ability to create invitations in the Apple Invites app for the iPhone, which launched in the App Store last month. In the Apple Invites app, iCloud+ subscribers can create invitations for any occasion, such as birthday parties, graduations, baby showers, and more. Anyone ...
iOS 18

Top 5 New Features Coming in iOS 18.4

Friday March 21, 2025 3:26 pm PDT by
We're not getting new Siri Apple Intelligence features in iOS 18.4 as expected, but the upcoming update does have quite a few new additions that will be worth upgrading for. We've rounded up the five best features to look forward to, and if you're not running the beta, you can expect to get access to these in early April. Priority Notifications If you have an iPhone or iPad that supports...
Generic iOS 19 Feature Mock

iOS 19 Coming in June With These New Features

Thursday March 20, 2025 2:04 pm PDT by
While the first iOS 19 beta is still more than two months away, there are already plenty of rumors about the upcoming software update. Below, we recap the key iOS 19 rumors so far. visionOS-Like Design In January, the YouTube channel Front Page Tech revealed a redesigned Camera app that is allegedly planned for iOS 19. According to Front Page Tech host Jon Prosser, the Camera app...
Generic iOS 18

Apple Seeds iOS 18.4 and iPadOS 18.4 Release Candidate With Priority Notifications, Ambient Music and More

Monday March 24, 2025 10:07 am PDT by
Apple today seeded the release candidate versions of upcoming iOS 18.4 and iPadOS 18.4 updates to developers for testing purposes, with the software coming a week after Apple released the fourth betas. iOS 18.4 and iPadOS 18.4 can be downloaded from the Settings app on a compatible device by going to General > Software Update. With iOS 18.4, Apple is adding the Priority Notifications...
airpods max 2024 colors

Don't Buy Into Apple's Hype About AirPods Max Gaining Lossless Audio

Monday March 24, 2025 4:24 pm PDT by
Apple today announced that AirPods Max with a USB-C port will be gaining support for lossless audio and ultra-low latency audio with a firmware update next month, alongside the release of iOS 18.4, iPadOS 18.4, and macOS 15.4. For context, audio files are typically compressed to keep file sizes smaller. There are lossy compression standards like MP3, and Apple's own Advanced Audio Codec...
Foldable iPhone 2023 Feature Iridescent Search

Foldable iPhone Expected to Launch Next Year, Costing Around $2,000

Monday March 24, 2025 3:43 am PDT by
Apple will launch its long-rumored foldable iPhone next year with a ~$2,000 premium price tag attached, expects well-connected Bloomberg reporter Mark Gurman. Gurman's comments on Apple's launch plans for its first foldable device appeared in the Q&A section of his latest Power On newsletter. Earlier this month, the reporter said Apple's foldable iPhone could be arriving "as early as 2026,"...
ios 19 messages app

Here's What Apple's iOS 19 Messages App Might Look Like

Tuesday March 25, 2025 11:52 am PDT by
Leaker Jon Prosser today shared a mockup of what he says the Messages app will look like in iOS 19, demoing an interface with rounded, translucent bubble-shaped navigation buttons at the top and softer, rounder corners for the keyboard and word suggestions. Jon Prosser's Messages app mockup The return button, a button for going back to the Messages list, and the FaceTime button have a deeper...

Top Rated Comments

WarmWinterHat Avatar
14 weeks ago

When I was diagnosed with sleep apnea 7-8 years ago, I was alerted to the possibility by my dentist. Then I went to my PCP who referred me to a sleep specialist. He sent me to a special sleep center where they put electrodes all over my head and had me sleep in a clinical setting. Then I had to go back to the sleep specialist. This all took months and many dollars. The fact that much of this can be streamlined by a product that many people already have is awesome!
This doesn't replace sleep studies; it alerts you that it might be an issue. The only way to know for sure is closely watch O2 levels and brain-wave data, hence the electrodes. Sleep studies are sometimes done at home now, but someone still comes to your place to configure and fit the monitoring gear, or sends your home with a simpler monitoring setup. It depends on the situation.

Talk to your physician for an actual diagnosis.
Score: 4 Votes (Like | Disagree)
Westside guy Avatar
14 weeks ago

Now I hear they do home studies that require far less equipment, with lesser results of course but to your point if some can get a basic alert from the watch that is great.
I had a cardiologist referred me for a home sleep study. The sleep doc insisted on a full study in his sleep center. I was so covered with wires (with goo in my hair and everywhere), in an unfamiliar bed, etc. that I could never get comfortable and slept less than hour the entire night... they eventually told me to just go home about 3:30AM. And the dude diagnosed me with bunch of garbage like "restless leg" - yeah my legs were restless because there were two wires running down the legs of my pajamas! My wife rolled her eyes at some of what the guy claimed.

The apnea diagnosis was correct, but they'd have gotten that from a home study just as well.

A home sleep study may measure fewer parameters - but, in my opinion, it probably gives them better insight into your actual sleep.
Score: 3 Votes (Like | Disagree)
dwaltwhit Avatar
14 weeks ago
When I was diagnosed with sleep apnea 7-8 years ago, I was alerted to the possibility by my dentist. Then I went to my PCP who referred me to a sleep specialist. He sent me to a special sleep center where they put electrodes all over my head and had me sleep in a clinical setting. Then I had to go back to the sleep specialist. This all took months and many dollars. The fact that much of this can be streamlined by a product that many people already have is awesome!
Score: 2 Votes (Like | Disagree)
SAIRUS Avatar
14 weeks ago
Looks at price of Apple products in Brazil….starts to lose sleep over it.
Score: 2 Votes (Like | Disagree)
svish Avatar
14 weeks ago
Good to see it available in yet another region. This feature seems like it is available in a many markets but disappointing to see that it is not available in my country. Hopefully it is coming soon
Score: 1 Votes (Like | Disagree)
icanhazmac Avatar
14 weeks ago

When I was diagnosed with sleep apnea 7-8 years ago, I was alerted to the possibility by my dentist. Then I went to my PCP who referred me to a sleep specialist. He sent me to a special sleep center where they put electrodes all over my head and had me sleep in a clinical setting. Then I had to go back to the sleep specialist. This all took months and many dollars. The fact that much of this can be streamlined by a product that many people already have is awesome!
Different result than I had. I was referred about 15 years ago to the sleep center of my local hospital and received a CPAP the very next morning. Now I hear they do home studies that require far less equipment, with lesser results of course but to your point if some can get a basic alert from the watch that is great.
Score: 1 Votes (Like | Disagree)