Masimo CEO: Apple Watch Blood Oxygen Sensor is Not Reliable, Customers Are 'Better Off Without It'

As Apple starts selling Apple Watch Series 9 and Ultra 2 models without the blood oxygen sensor enabled, Masimo CEO Joe Kiani confirmed to Bloomberg that there has been no chat with Apple about a possible settlement.

apple watch ultra yellow
According to Kiani, he has not spoken to anyone from Apple "personally" and no one from Apple has reached out about an agreement. He did say there have been court-ordered mediations he is unable to discuss, and that there are likely to be additional meetings in the future, but he does not believe those meetings will serve as steps to settling the legal dispute with Apple.

Back in December, Kiani said that Masimo would be open to a settlement with Apple and would help the Cupertino company "improve their product," but he said he would want an apology and "honest dialogue" as part of any settlement discussion.

Kiani maligned the Apple Watch blood oxygen sensor, even though it is allegedly using Masimo-patented technology. "Apple is masquerading what they are offering to consumers as a reliable, medical pulse oximeter, even though it is not," said Kiani. "I really feel wholeheartedly that consumers are better off without it."

Apple's blood oxygen sensor does not have FDA clearance, but Masimo's W1 watch does. Masimo's device offers continuous real-time oxygen saturation and pulse rate monitoring, and it can be used as a medical device in hospitals, clinics, and at home. Kiani says that pulse oximetry "is not useful unless it is a continuous monitor."

Apple has accused Masimo of copying the Apple Watch with the W1, and claims that it infringes on several Apple patents. Apple has said that Masimo is using litigation to eliminate the Apple Watch from the market to make room for the W1 watch. Kiani says that Apple's narrative is "false" and that Apple is living in a "fake reality."

The U.S. International Trade Commission ruled in October that Apple violated Masimo patents with the Apple Watch blood oxygen sensor, and it levied an import ban on the component in December. Apple was forced to stop selling the Apple Watch for a short period, but sales resumed while the Court of Appeals for the Federal Circuit considered whether or not to stay the import ban during the appeals process.

The court decided yesterday that the import ban would not be paused while Apple's appeal is considered, and as of today, Apple is not allowed to sell Apple Watch Series 9 or Apple Watch Ultra 2 models with a functional blood oxygen sensor in the United States.

To avoid having to stop sales, Apple opted to sell modified ‌Apple Watch Ultra 2‌ and Apple Watch Series 9 models that do not contain pulse oximetry functionality, and those devices are now available for purchase. These Apple Watches still have a blood oxygen sensor inside, but it is disabled.

In the future, should Apple come to some sort of arrangement with Masimo or should the ITC's ruling be overturned, the Apple Watch models sold with the disabled sensor should be able to be returned to working condition with a software update. Apple Watch Series 9 and Ultra 2 models sold prior to the import ban will continue to offer blood oxygen sensing technology, as well Apple Watches sold outside of the United States.

The import ban is only applicable in the U.S., and Apple is able to sell the Apple Watch as usual in other countries.

Related Forum: Apple Watch

Popular Stories

Generic iOS 19 Feature Mock Light

iOS 19 Will Bring Biggest Design Overhaul Since iOS 7

Monday March 10, 2025 12:17 pm PDT by
Apple is planning for a major design overhaul of the iPhone, iPad, and Mac interfaces with the introduction of iOS 19, iPadOS 19, and macOS 16 later this year, reports Bloomberg. The update will "fundamentally change" the look of Apple's operating system, introducing a more consistent cross-platform experience. Apple plans to update the style of icons, menus, apps, windows, and system...
Apple One Apps Feature 2

Apple One's Best Plan Now Includes Two More Perks For Free

Monday March 10, 2025 6:40 am PDT by
Apple One allows you to subscribe to up to six Apple services for one discounted monthly price. There are three Apple One tiers: Individual, Family, and Premier. Over the last month, the highest-end ‌Apple One‌ Premier plan has gained two additional perks. Here is what Apple One Premier already included, for $37.95 per month:Apple Music Apple TV+ Apple Arcade Apple News+ Apple Fitness+...
ios 18 4 carplay

Apple Upgrades CarPlay in Two Ways

Wednesday March 12, 2025 6:05 am PDT by
The upcoming iOS 18.4 update for the iPhone includes a smaller but meaningful improvement for Apple's in-car iPhone mirroring system CarPlay. Specifically, CarPlay now shows a third row of icons, up from two rows previously. However, this change is only visible in vehicles with a larger center display. For example, a MacRumors Forums member noticed the change in a Toyota Tundra with a...
airpods pro 2 gradient

AirPods Pro 3 Launch Now Just Months Away: Here's What We Know

Tuesday March 11, 2025 3:26 am PDT by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as excellent for...
iOS 18

12 New Things Your iPhone Can Do in iOS 18.4

Monday March 10, 2025 9:28 am PDT by
Apple is set to release iOS 18.4 in early April, bringing further refinements to Apple Intelligence features, a neat new capability to iPhone 15 Pro devices, new emoji, and more. While not quite as packed with new features as Apple's preceding iOS 18 point releases, iOS 18.4 still introduces enhancements that aim to make your iPhone smarter and more intuitive. Below, we've listed 12 new...
iphone 17 mockups idevicehelp

Video Shows iPhone 17 Mockups Based on 'Internal Documents'

Monday March 10, 2025 4:41 am PDT by
YouTuber iDeviceHelp on Friday posted a video that shows off mockups of Apple's forthcoming iPhone 17 models that are purportedly based on "internal documents." We're sharing the video here since it was made in collaboration with leaker Majin Bu, who last month published similar iPhone 17 renders that were widely corroborated by separate leakers with links to Apple's Chinese supply chain....
iOS 18

iOS 18.3.2 Update Coming Soon for iPhones

Monday March 10, 2025 7:25 am PDT by
Apple employees are internally testing iOS 18.3.2 for iPhones, according to our website's visitor logs, which have been a reliable indicator of upcoming iOS versions. The software update should be released in the next week or two. iOS 18.3.2 will be a minor update that addresses software bugs and/or security vulnerabilities. Don't expect any new features. iOS 18.3.2 will be an interim...
iOS 18

Apple Releases iOS 18.3.2 With Bug Fixes

Tuesday March 11, 2025 10:33 am PDT by
Apple today released iOS 18.3.2 and iPadOS 18.3.2, minor updates for the iOS 18 and iPadOS 18 operating systems that came out last September. iOS 18.3.2 and iOS 18.3.2 come a month after Apple released iOS 18.3.1 and iPadOS 18.3.1. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release...
2016 12 inch macbook feature

Apple Introduced Its Most Controversial MacBook 10 Years Ago Today

Sunday March 9, 2025 1:00 am PST by
Apple announced the infamous 12-inch Retina MacBook a decade ago today, an experimental new Mac that was as controversial as it was revolutionary. Apple unveiled the 12-inch MacBook on March 9, 2015, at the "Spring Forward" event in San Francisco, California. The event was primarily focused on the Apple Watch, which was being fully detailed ahead of its launch the following month, so the...

Top Rated Comments

thenahon Avatar
15 months ago
“They stole our tech!”
“[Our stolen tech] is not reliable!”
Score: 51 Votes (Like | Disagree)
iOS Geek Avatar
15 months ago
Odd thing to say when you're accusing them of using YOUR tech...but ok.

So which is it, Masimo? Because by starting this fight by saying it's YOUR technology and then also calling it unreliable, you're basically saying YOUR tech (which they stole, as you claim) is unreliable. Or if that's not what you're saying, that means it's NOT your tech, because if it was...it would be reliable.

Things that make you go "hmmm" ?. That statement might come back to bite you.
Score: 43 Votes (Like | Disagree)
spazzcat Avatar
15 months ago
Wait I thought they stoled your tech. So this whole thing is a marking campaign to sell your watches.
Score: 42 Votes (Like | Disagree)
Think|Different Avatar
15 months ago
Really? That's your statement? What a joke.
Score: 40 Votes (Like | Disagree)
GMShadow Avatar
15 months ago
This guy is such a massive prick, and it's been clear from day one he saw dollar signs when Apple first reached out, then has been butthurt ever since when Apple decided they didn't need Masimo's tech to make their own sensor.

The sooner they lose their cases and he's driven out of the company, the better.
Score: 33 Votes (Like | Disagree)
jz0309 Avatar
15 months ago

Apple is masquerading what they are offering to consumers as a reliable, medical pulse oximeter, even though it is not,
no, they have not, they stated that it is for wellness purposes and not for medical use.
Can't post a screenshot as Apple removed info about it.

Now coming out like this and bashing the AW just shows the character of this person ...
And to no surprise quite frankly that no-one at Apple wants to talk to him personally.

This is a long road to come for this dispute ...
Score: 29 Votes (Like | Disagree)