Pulse Ox Company Masimo Accuses Apple of Delaying Legal Battle to Sell More Apple Watches

Back in January, medical device company Masimo levied a lawsuit against Apple, accusing the company of stealing trade secrets and improperly using Masimo inventions related to health monitoring in the Apple Watch.

apple watch series 6 blood oxygen monitoring 1
Masimo is known for its pulse oximetry devices, and Apple just recently debuted the Apple Watch Series 6 with blood oxygen monitoring capabilities. Following the launch of the Series 6, Masimo has accused Apple of attempting to delay the legal proceedings in order to sell more watches and gain a more dominant share of the smart watch market.

As highlighted by Bloomberg, Apple has not officially responded to the original January lawsuit, instead filing requests to dismiss the trade secret part of the case and to have Masimo patents invalidated. Apple has asked the trial court to put the case on hold until the patent issue is resolved, which could take a significant amount of time.

Apple told the court that delaying the case until a patent review will narrow the issues and "reduce wasted resources." With no hold, the first hearing on the case will take place in April 2021.

According to Masimo, the potential postponement would allow Apple to "seize on a critical window of opportunity to capture an emerging field," using its "considerable resources and ecosystem" to capture market share with no regard for Masimo patent technology.

Masimo CEO Joe Kiani said in the filing that Masimo believes Apple's customers see the Series 6 as a "medical product," which can "harm consumers" and "reduce [Masimo's] opportunities to sell truly clinical-grade products to consumers."

Masimo accused Apple of stealing secret information by pretending to have a working relationship with Masimo and then poaching Masimo employees. Masimo also believes that Apple is infringing on 10 Masimo patents, and says that Apple relied on Masimo technology when developing the light-based heart rate sensor used in the Apple Watch.

Apple allegedly contacted Masimo in 2013, ahead of the launch of the original Apple Watch, and asked to meet for a potential collaboration. Apple was aiming to "understand more" about Masimo's products and was allegedly seeking to add Masimo technology to future Apple devices. Masimo said that the two companies had productive meetings, but then Apple began hiring important employees. Apple ultimately hired several Masimo employees including Michael O'Reilly, who had served as Chief Medical Officer and EVP of Medical Affairs at Masimo. He has been working on Health Special Projects at Apple, and had a hand in the development of the Apple Watch.

Masimo in its original January lawsuit asked the court to block Apple from using Masimo's patented inventions and it asked the court for damages.

Popular Stories

iOS 26 Feature

iOS 26.1 to iOS 26.4 Will Add These New Features to Your iPhone

Saturday October 18, 2025 11:00 am PDT by
iOS 26 was released last month, but the software train never stops, and iOS 26.1 beta testing is already underway. So far, iOS 26.1 makes both Apple Intelligence and Live Translation on compatible AirPods available in additional languages, and it includes some other minor changes across the Apple Music, Calendar, Photos, Clock, and Safari apps. More features and changes will follow in future ...
ios 26 1 liquid glass opaque

iOS 26.1 Beta 4 Lets Users Control Liquid Glass Transparency with New Toggle

Monday October 20, 2025 10:57 am PDT by
With the fourth betas of iOS 26.1, iPadOS 26.1, and macOS 26.1, Apple has introduced a new setting that's designed to allow users to customize the look of Liquid Glass. The toggle lets users select from a clear look for Liquid Glass, or a tinted look. Clear is the current Liquid Glass design, which is more transparent and shows the background underneath buttons, bars, and menus, while tinted ...
iphone air thickness

Apple Said to Cut iPhone Air Production Amid Underwhelming Sales

Friday October 17, 2025 8:29 am PDT by
Apple plans to cut production of the iPhone Air amid underwhelming sales performance, Japan's Mizuho Securities believes (via The Elec). The Japanese investment banking and securities firm claims that the iPhone 17 Pro and iPhone 17 Pro Max are seeing higher sales than their predecessors during the same period last year, while the standard iPhone 17 is a major success, performing...
iOS 26

iOS 26.0.2 Update for iPhones Coming Soon

Friday October 17, 2025 7:35 am PDT by
Apple's software engineers continue to internally test iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.0.2 will be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet. The update will likely be released by the end of next week. Last month, Apple released iOS 26.0.1,...
Apple iPad Pro hero M5

New iPad Pro Has Six Key Upgrades Beyond M5 Chip

Saturday October 18, 2025 10:57 am PDT by
While the new iPad Pro's headline feature is the M5 chip, the device has some other changes, including N1 and C1X chips, faster storage speeds, and more. With the M5 chip, the new iPad Pro has up to a 20% faster CPU and up to a 40% faster GPU compared to the previous model with the M4 chip, according to Geekbench 6 results. Keep in mind that 256GB and 512GB configurations have a 9-core CPU,...
iPhone Siri Glow

Some Apple Employees Have 'Concerns' About iOS 26.4's Revamped Siri

Sunday October 19, 2025 7:39 am PDT by
iOS 26.4 is expected to introduce a revamped version of Siri powered by Apple Intelligence, but not everyone is satisfied with how well it works. In his Power On newsletter today, Bloomberg's Mark Gurman said some of Apple's software engineers have "concerns" about the overhauled Siri's performance. However, he did not provide any specific details about the shortcomings. iOS 26.4 will...
HomePod mini and Apple TV

Apple's Next Rumored Products: New HomePod Mini, Apple TV, and More

Thursday October 16, 2025 9:13 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro, iPad Pro, and Vision Pro with its next-generation M5 chip, but previous rumors have indicated that the company still plans to announce at least a few additional products before the end of the year. The following Apple products have at one point been rumored to be updated in 2025, although it is unclear if the timeframe for any of them has...
maxresdefault

Here's How the iOS 26.1 Transparency Toggle Changes Liquid Glass

Monday October 20, 2025 1:55 pm PDT by
With the fourth beta of iOS 26.1, Apple added a toggle that makes Liquid Glass more opaque and reduces transparency. We tested the beta to see where the toggle works and what it looks like. Subscribe to the MacRumors YouTube channel for more videos. If you have the latest iOS 26.1 beta, you can go to Settings > Display and Brightness to get to the new option. Tap on Liquid Glass, then...
m4 macbook air blue

M5 MacBook Air Coming Spring 2026 With M5 Mac Studio and Mac Mini in Development

Thursday October 16, 2025 3:57 pm PDT by
Apple plans to launch MacBook Air models equipped with the new M5 chip in spring 2026, according to Bloomberg's Mark Gurman. Apple is also working on M5 Pro and M5 Max MacBook Pro models that will come early in the year. Neither the MacBook Pro models nor the MacBook Air models are expected to get design changes, with Apple focusing on simple chip upgrades. In the case of the MacBook Pro, a m...

Top Rated Comments

destroyer2012 Avatar
66 months ago
Well.. normally I hate frivolous suits against Apple but it definitely feels like thats pretty fishy. I'd be pissed if someone reached out to my company to collaborate, hired my best people, and then used their money to keep me from recourse.
Score: 23 Votes (Like | Disagree)
Hammerd Avatar
66 months ago
So this is what Apple is nowadays: a company that dries up smaller promising companies and that steal their IP, while wanting to be seen as a distuptive pro-environment pro-lgbt company that want to make the world a better place. This is just clowning of course, they just want everyone's money. They are even ready to kill companies that work with their platform (Tiles, fitness apps, music and movies/series streaming apps, banks... next what). That's pathetic that they act so agressively, they even sue companies that have a fruit shaped logo... and want to look like the good guys
Score: 18 Votes (Like | Disagree)
SpringKid Avatar
66 months ago

Masimo CEO Joe Kiani said in the filing that Masimo believes Apple's customers see the Series 6 as a "medical product," which can "harm consumers" and "reduce [Masimo's] opportunities to sell truly clinical-grade products to consumers."
In what world does this make sense? ?
Score: 16 Votes (Like | Disagree)
now i see it Avatar
66 months ago
Usually such behavior would be attributed to a scum bag company.
Score: 12 Votes (Like | Disagree)
Ukiyo Evenings Avatar
66 months ago

Apple is already crushing the wearables market. I dont understand the statement in this lawsuit. What percent of new users are getting the watch only because of O2 sensors? Mostly the company is concerned they join the long list of dedicated devices getting incorporated into a multifunction device.
It’s not about getting the watch exclusively for the oximeter, rather, the nullification of demand for devices as a result of having an Apple Watch that does the job. Although I hope people who do need pulse oximeters would actually get a certified medical device instead of the watch for keeping an eye on their SpO2.
Score: 10 Votes (Like | Disagree)
Peperino Avatar
66 months ago

Honestly, I don't care about the Trade Secrets up for debate here. From my perspective, Apple brought potentially life saving tech to the masses at an affordable price. Can we please stop worrying about profits with life saving products?

If the apple watch saves someone life because of this, its well worth it IMO.
Regardless what the product does, How is it OK for Apple to steal other companies' technology? iF they are interested they can license it or buy them. But stealing is not ok.
Score: 8 Votes (Like | Disagree)