Pulse Oximetry Company Masimo Wants the Apple Watch Series 6 Banned - MacRumors
Skip to Content

Pulse Oximetry Company Masimo Wants the Apple Watch Series 6 Banned

Medical device company Masimo is embroiled in an ongoing legal battle with Apple over several of the health capabilities available in the Apple Watch, and now Masimo wants the Apple Watch Series 6 banned, reports Bloomberg.

apple watch series 6 blood oxygen monitoring 1
Masimo today filed a new patent infringement lawsuit with the United States International Trade Commission, which asks the ITC to halt imports of the Apple Watch Series 6. According to Masimo, the Apple Watch Series 6 infringes on five Masimo patents related to blood oxygen monitoring.

Medical grade pulse oximetry devices are what Masimo specializes in, and pulse oximetry is a feature that Apple added to the Apple Watch with the Series 6 model. The Apple Watch uses light to detect the amount of oxygen in the blood, with the feature joining heart rate monitoring and ECG capabilities.

Masimo initially sued Apple in January 2020, accusing the Cupertino company of stealing trade secrets and improperly using Masimo inventions. Masimo's patents are now being examined by the U.S. Patent and Trademark Office because Apple said they do not cover new inventions, and the case is on hold until that process has been completed.

Masimo has claimed that by getting the court to delay the legal proceedings until the patents are validated, Apple is attempting to sell more Apple Watches. The patent office delay has prompted Masimo to also file with the ITC, as the ITC will not delay the investigation.

ITC cases are completed in 15 to 18 months, and because of the speed at which cases are investigated, there won't be time for the patent office to weigh in should Apple also attempt to challenge these claims.

In the prior filing, Masimo claimed that Apple sneakily poached Masimo employees and used patented Masimo technology when developing the sensors used in the Apple Watch.

Masimo told the ITC that banning the Apple Watch Series 6 will not impact the public because the pulse oximetry functionality in the device is "not essential to the public health or welfare," and the Apple Watch's blood oxygen monitoring is not a true medical device.

Popular Stories

Apple Card iPhone 16 Pro Feature

Apple Card Promo to Offer Free AirPods Pro 3

Friday May 15, 2026 8:59 am PDT by
Starting as early as next week, customers who sign up for an Apple Card at Apple's retail stores in the U.S. will receive $249 cash back when they purchase AirPods Pro 3, according to Bloomberg's Mark Gurman. The promotion has yet to be officially announced by Apple, so exact terms and conditions are not available at this time. AirPods Pro 3 are priced at $249 in the U.S., so customers who...
Apple WWDC25 iOS 26 CarPlay Light mode 250609

Six Popular iPhone Apps Now Available on CarPlay

Thursday May 14, 2026 9:10 am PDT by
Apple's CarPlay system for accessing iPhone apps on a vehicle's dashboard screen has received six popular apps in recent weeks: ChatGPT, Perplexity, Grok, Google Meet, WhatsApp, and the indie artist streaming platform Audiomack. Make sure you have the latest version of each app and they will automatically appear on CarPlay. ChatGPT Starting with iOS 26.4, CarPlay supports voice-based...
ipad mini 7 blue

OLED iPad Mini: Release Date, Pricing, and What to Expect

Thursday May 14, 2026 5:08 am PDT by
According to the latest rumors, Apple is close to launching its next-generation iPad mini. So what should we expect from the successor to the iPad mini 7 that Apple released over a year ago? Read on to find out. Processor and Performance Apple is working on a next-generation version of the iPad mini (codename J510/J511) that features the A19 Pro chip, according to information found in code...

Top Rated Comments

64 months ago

I'm proud to have never spent one penny to support thieves
…and yet you registered for an account and spent time to upload a profile pic with a website that is 99% related to these “thieves.”
Score: 24 Votes (Like | Disagree)
64 months ago

I'm proud to have never spent one penny to support thieves
If you ever brought any technology you supported thieves
Score: 21 Votes (Like | Disagree)
TheYayAreaLiving 🎗️ Avatar
64 months ago
Yeahhhhh! Good luck with that. That’s not going to work. Already got my series 6 AW. Definitely will be ordering series 7 AW.

Wasting their time, energy, resources.

Case Dismissed!
Score: 18 Votes (Like | Disagree)
64 months ago
In David & Goliath... at least David was David. But here we're talking amoeba vs Zeus. No popcorn necessary for this one.
Score: 17 Votes (Like | Disagree)
jav6454 Avatar
64 months ago
So:

Masimo told the ITC that banning the Apple Watch Series 6 will not impact the public because the pulse oximetry functionality in the device is "not essential to the public health or welfare," and the Apple Watch's blood oxygen monitoring is not a true medical device.
Then what's the issue? Apple is not a medical grade device seller, nor do they claim to be.
Score: 16 Votes (Like | Disagree)
64 months ago
Another lawsuit against Apple huh? Seen so many through the years. Everyone goes after the King of the Hill looking for anything. The only ones getting anything are the lawyers folks so you’re only hurting yourselves.
Score: 14 Votes (Like | Disagree)