PSA: Family Setup Prevents Relatives From Using Blood Oxygen Monitoring on Apple Watch Series 6 Models, Regardless of Age

In watchOS 7, Family Setup is a new feature that allows kids, elderly relatives, and others to take advantage of many of the capabilities of Apple Watch without the need for their own paired iPhone.

Apple Watch Blood Oxygen
Family Setup offers helpful tools for parents and kids, with Schooltime and Downtime features that offer controls over when and what kids can do with their Apple Watch. For older adults, it provides access to tools like fall detection, automatic emergency calling, and health features without the need for them to have an ‌‌iPhone‌‌.

However, if you were thinking of getting an Apple Watch Series 6 for a relative in your ‌Family Setup‌ circle so they could take advantage of the Blood Oxygen monitoring feature, think again.

Apple states that the Blood Oxygen app is not available for use by people under 18 years old, and in fact the app will refuse to launch if it detects that the user's birth date in the Health app is less than 18 years ago. But the Blood Oxygen app will also be automatically disabled if you set up an unpaired Apple Watch Series 6 using ‌Family Setup‌, regardless of the intended user's age.

Besides being a Health-related feature, Apple has not explained why the Blood Oxygen app is not available on an Apple Watch configured using ‌Family Setup‌, but the company has been eager to stress that the blood oxygen monitoring on Apple Watch is not intended for medical use, including self-diagnosis or consultation with a doctor. Indeed, Apple states that it is only designed for "general fitness and wellness purposes," which leaves its usefulness quite open to interpretation.

Oxygen saturation, or SpO2, represents the percentage of oxygen being carried by red blood cells from the lungs to the rest of the body, and indicates how well this oxygenated blood is being delivered throughout the body. A healthy person usually has blood oxygen levels in the mid- to high 90s. But if someone has a health condition like lung disease, sleep disorders or respiratory infections, these levels can dip between the 60s to the low 90s.

Until more research is conducted, however, Apple is likely to continue to limit the use of the Blood Oxygen app in situations where it thinks the measurements might be relied upon as early indications of medical conditions or disease, such as in a ‌Family Setup‌ context.

The good news is that Apple is joining forces with researchers to conduct three health studies that include using Apple Watch to explore how blood oxygen levels can be used in future health applications, including how they may help manage and control asthma and heart failure, and how they could serve as early signs of respiratory conditions like influenza and COVID-19.

Related Roundup: Apple Watch 11
Buyer's Guide: Apple Watch (Buy Now)

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
google pixel 10

Switching Between iPhone and Android Will Get Easier With New Apple and Google Collaboration

Monday December 8, 2025 11:10 am PST by
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta. Apple already has a Move to iOS app for transferring data from an Android...
Apple Fitness Plus expansion hero

Apple Fitness+ Coming to 28 New Regions With Digital Voice Dubbing

Monday December 8, 2025 6:19 am PST by
Apple today announced that Fitness+ is expanding to 28 new markets on December 15 in the service's largest international rollout since launch, accompanied by new language dubbing and a K-Pop music genre. Apple Fitness+ will become available in Chile, Hong Kong, India, the Netherlands, Singapore, Taiwan, and additional regions on December 15, with Japan scheduled to follow early next year....
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...

Top Rated Comments

mr.steevo Avatar
68 months ago
I thought the point of Family Sharing was so grandma didn’t have to buy an iPhone?
Score: 11 Votes (Like | Disagree)
travelsheep Avatar
68 months ago
I think SpO2 measurement will be great in a wife-reader app. When we guys are telling the wife the true reason for xy, the watch can blink if her SpO2 starts to tank (as a result of her holding her breath), and we can know early on that she's not buying our story and that we will in trouble and thus allows us to switch strategies early on when damage is still small.. could be a real life-saver app...
Score: 6 Votes (Like | Disagree)
jlc1978 Avatar
68 months ago
Apple has not explained why the Blood Oxygen app is not available on an Apple Watch configured using Family Setup, but the company has been eager to stress that the blood oxygen monitoring on Apple Watch is not intended for medical use, including self-diagnosis or consultation with a doctor. Indeed, Apple states that it is only designed for "general fitness and wellness purposes," which leaves its usefulness quite open to interpretation.
It's quite possible that it is not an accuracy or reliability issue, the device may very well be as good as those fingertip ones doctors use; but a regulatory concern. Apple would not want to hold up its release while it gets FDA approval for it to be classified as a medical device in the US; and thus stresses it is not for medical use. Once they do all the testing, get the required proof of effectiveness, they may seek approval ; or simply point out how effective it is and let doctors and users decide how to use and interpret it.
Score: 6 Votes (Like | Disagree)
AngerDanger Avatar
68 months ago

in fact the app will refuse to launch if it detects that the user's birth date in the Health app is less than 18 years ago
Birthday detection?! Amazing Apple didn’t mention this at the event!
Score: 5 Votes (Like | Disagree)
jwdsail Avatar
68 months ago
"The following features and apps are not available: irregular heart rhythm notifications, ECG, Cycle Tracking, Sleep, Blood Oxygen, Podcasts, Remote, News, Home, and Shortcuts."

Huh...

Good to know, just saved me some money, and Apple just lost a sale.

Was going to buy the new Watch for my mom, who refuses to give up her iPhone 5. She doesn't want anything bigger, and wants a home button. I had hoped that Family Setup would allow me to get her the Watch w/o the expense of a phone she doesn't want and won't like?

But, 99% of what she'd want the Watch for is disabled if using Family Setup.. SMH..



Oh well?
Score: 4 Votes (Like | Disagree)
AirunJae Avatar
68 months ago
I'm sure it will get there eventually. I'd assume it's related to regulatory concerns.
Score: 4 Votes (Like | Disagree)