Masimo

By MacRumors Staff

Masimo Articles

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Blood Oxygen Feature Finally Returning to Apple Watch in the US

Thursday August 14, 2025 6:07 am PDT by
Apple today announced that blood oxygen monitoring will return to Apple Watch models in the United States via a software update. Apple says that its blood oxygen monitoring feature has been "redesigned" for the Apple Watch Series 9, Apple Watch Series 10, and Apple Watch Ultra 2 in the United States. The new solution involves measuring sensor data from the Blood Oxygen app on the Apple Watch ...
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Apple Legal Battle Among Masimo's Rising Litigation Costs

Wednesday August 6, 2025 3:12 pm PDT by
Medical technology company Masimo has been facing off with Apple in court since 2020, and while Masimo has scored some wins, it's been an expensive endeavor. In its quarterly earnings reports, Masimo outlines how much it has spent on litigation. The way Masimo's spending is reported has changed over the last five years, but looking at earnings reports and information from Masimo executives...
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Apple Appeals US Ban on Apple Watch Blood Oxygen Feature

Monday July 7, 2025 7:45 pm PDT by
Apple has asked a U.S. federal appeals court to overturn an import ban on Apple Watch models with blood oxygen monitoring capabilities, arguing that the decision was based on a patent dispute involving an undeveloped competing product, Reuters reports. On Monday, attorneys for Apple appeared before a three-judge panel at the U.S. Court of Appeals for the Federal Circuit to contest a 2023...
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Apple Continues Working to Get Blood Oxygen Sensing Back in U.S. Apple Watches as Next Masimo Trial Begins

Tuesday November 5, 2024 12:56 pm PST by
Apple and Masimo are back in a California court this week for a bench trial that will see Masimo arguing that Apple illegally poached its employees and stole trade secrets when developing the Apple Watch. Masimo first filed the trade secret lawsuit against Apple in 2020, and there was a jury trial in April 2023. During that trial, the court threw out more than half of Masimo's trade secret...
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Apple Wins Symbolic $250 in Masimo Watch Patent Trial

Sunday October 27, 2024 1:26 pm PDT by
A federal jury Friday ruled that Masimo's smartwatches infringed on Apple Watch patents, but awarded Apple just $250 in damages, which is the statuary minimum amount Apple could seek while it pursues a jury trial rather than a court trial over Masimo's alleged infringements. Masimo's discontinued W1 Freedom smartwatch According to Bloomberg Law, jurors found that the original design for...
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Apple Watch Pulse Oximetry Can Be Reactivated Through Software in 2028 or With Successful Appeal

Tuesday March 12, 2024 1:23 pm PDT by
Apple has been selling the Apple Watch Series 9 and Apple Watch Ultra 2 without the blood oxygen monitoring feature in the U.S. since mid-January, and while we've suspected Apple would be able to reintroduce pulse oximetry in models that lack it through a future software update, new information from the U.S. Customs and Border Protection (CBP) confirms that reactivation is indeed a possibility....
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Masimo CEO: Apple Watch Blood Oxygen Sensor is Not Reliable, Customers Are 'Better Off Without It'

Thursday January 18, 2024 11:04 am PST by
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. 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...
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Apple Updates Website to Highlight Removal of Apple Watch Blood Oxygen Feature

Wednesday January 17, 2024 10:58 pm PST by
As expected, Apple has updated its U.S. website to notify customers that the Blood Oxygen feature on the Apple Watch Series 9 and Apple Watch Ultra 2 is no longer included. Apple has added a banner to the store webpages related for both devices, and removed all mention of the feature in its product comparison tool. The change was spotted by developer Dylan McDonald. The modified Series 9...
apple watch series 6 blood oxygen monitoring 1

Apple to Sell Series 9 and Ultra 2 Watches Without Blood Oxygen Feature in U.S. Starting Tomorrow

Wednesday January 17, 2024 5:12 pm PST by
Apple Watch Series 9 and Apple Watch Ultra 2 models will be sold without the Blood Oxygen feature in the U.S. starting on January 18, according to 9to5Mac's Chance Miller, allowing Apple to avoid a sales ban on these models. On its online store in the U.S., this change will occur starting at 6 a.m. Pacific Time tomorrow. The report says these Apple Watch models will still include the Blood...
apple watch series 6 blood oxygen monitoring 1

Apple May Sell Series 9 and Ultra 2 Watches Without Blood Oxygen App in U.S. Amid Patent Dispute

Monday January 15, 2024 10:27 am PST by
Apple has readied modified Apple Watch models that "do not contain pulse oximetry functionality," medical technology company Masimo said in a document filed today with the U.S. Court of Appeals for the Federal Circuit. The filing, viewed by MacRumors, suggests that Apple will be removing the Blood Oxygen app from new Apple Watch Series 9 and Apple Watch Ultra 2 models sold in the U.S., at...
apple watch series 6 blood oxygen monitoring 1

ITC Wants Apple Watch Sales Ban Reinstated: 'Apple Presents a Weak and Unconvincing Case'

Wednesday January 10, 2024 12:53 pm PST by
The U.S. International Trade Commission (ITC) today formally opposed Apple's motion for the Apple Watch sales ban to remain paused for the duration of Apple's appeal. In a document filed with the U.S. Court of Appeals for the Federal Circuit, ITC lawyers said "Apple presents a weak and unconvincing case to invoke the extraordinary remedy of a stay pending appeal," adding that Apple's...
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Apple Watch Series 9 and Ultra 2 Once Again Available to Purchase From Apple's Online Store

Thursday December 28, 2023 6:58 am PST by
Following a ruling from the U.S. Court of Appeals staying the Apple Watch import ban, Apple has returned the Apple Watch Series 9 and the Apple Watch Ultra 2 to its online stores in the U.S., and they should also be available in some Apple retail stores. Apple on Tuesday filed an emergency request asking for the import ban to be paused while an appeal is under way. The appeals court...
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Apple Watch Series 9 and Ultra 2 Available in Apple Stores Starting Today, Online Sales to Resume Tomorrow

Wednesday December 27, 2023 1:28 pm PST by
Apple Watch Series 9 and the Apple Watch Ultra 2 are back in some of Apple's retail stores in the United States today, according to Bloomberg's Mark Gurman. Select stores will have availability today, while all stores will have the Apple Watch models back in stock by December 30. Online sales of the devices are set to resume tomorrow by 12:00 p.m. Pacific Time. Apple is able to begin selling ...
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Apple Watch Series 9 and Ultra 2 Sales Ban Paused by US Appeals Court

Wednesday December 27, 2023 7:49 am PST by
The ban on imports of Apple Watch Series 9 and Apple Watch Ultra 2 models has today been temporarily paused, meaning that the devices can now go back on sale for a short while longer in the United States. Apple filed an emergency request to the United States Court of Appeals following President Biden's decision to decline a veto on the sales ban, allowing it to take effect earlier this week. ...
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AliveCor Praises Apple Watch Ban Amid Its Own Health Tech Patent Dispute With Apple

Wednesday December 27, 2023 4:11 am PST by
Health technology company AliveCor has praised the International Trade Commission (ITC)'s ban on sales of the Apple Watch Series 9 and Apple Watch Ultra 2 in the United States. AliveCor, like Masimo, accuses Apple of violating its patents related to heath technology used in the Apple Watch. While Masimo's fight focuses on the Apple Watch's blood oxygen sensing capabilities, AliveCor contends ...
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Apple Watch Import Ban Now Official, Apple Appeals Decision

Tuesday December 26, 2023 6:18 am PST by
Apple is now officially unable to sell the Apple Watch Series 9 and Apple Watch Ultra 2 in the United States as the International Trade Commission's import ban has become final. This morning, the Biden administration announced that it would not veto the ban. The Office of the United States Trade Representative said that after "careful consultations" it was opting not to reverse the ITC's...
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ITC Denies Apple's Request for a Stay on Looming Apple Watch Import Ban

Wednesday December 20, 2023 12:03 pm PST by
The U.S. International Trade Commission today denied Apple's motion to stay a looming Apple Watch ban while Apple files for appeal [PDF via The Verge], which means one avenue avoiding a pause in sales has been exhausted. Apple filed the appeal on October 30, aiming to prevent an import ban from going into effect while an appeal was underway, but the ITC said no to the request. The ITC has...
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Masimo CEO on Looming Apple Watch Ban: 'These Guys Have Been Caught With Their Hands in the Cookie Jar'

Tuesday December 19, 2023 11:16 am PST by
Masimo CEO Joe Kiani does not believe that Apple will be able to solve its patent infringement issues with software, reports Bloomberg. In an interview with Bloomberg TV, Kiani said that a software solution won't work because Masimo patents cover hardware, not software. "I don't think that could work -- it shouldn't -- because our patents are not about the software," said Kiani. Apple is...
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Potential Apple Watch Ban Issued by U.S. Trade Tribunal in Masimo Patent Battle

Friday October 27, 2023 3:32 am PDT by
The U.S. International Trade Commission (ITC) on Thursday ordered a ban on Apple Watch imports into the country after finding that Apple violated pulse oximetry company Masimo's patents with the devices (via Reuters). The ban is now subject to presidential review, so it does not take effect immediately, and Apple can take the ban to the U.S. Court of Appeals for the Federal Circuit after...
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Apple's Trade Secret Battle With Masimo Over Pulse Oximetry Technology Ends in Mistrial

Monday May 1, 2023 4:25 pm PDT by
The latest legal dispute between Apple and pulse oximetry company Masimo today ended in a mistrial, reports Bloomberg. The jury overseeing the case was not able to come to a final decision in its deliberations, causing U.S. district judge James Selna to declare a mistrial. Six jurors wanted to decide in favor of Apple, but one juror held strong for Masimo, leading to an impasse. Earlier this ...