Apple v Masimo
Apple to halt some Apple Watch Sales in US
Apple is planning to stop selling some versions of the Apple Watch in the United States as soon as this week to get ahead of what could be one of the most momentous patent disputes in years.
Biden administration upholds Apple Watch ban
US president Joe Biden's administration on Tuesday opted not to veto a government tribunal's ruling to ban imports of Apple Watches.
Apple files emergency motion against Apple Watch ban
Apple filed an emergency motion with a U.S. appeals court to pause a ban on importing and selling some of its Apple Watch models.
U.S. Appeals Court temporarily stops Apple Watch Sales Ban
Apple will be able to sell the latest Apple Watches after an import ban was temporarily stopped by a U.S. appeals court on Wednesday.
Apple Resumes Watch Series 9 and Ultra 2 Sales in U.S.
Apple has started resuming sales of its Apple Watch Series 9 and Ultra 2 in the country.
Apple to Remove Blood-Oxygen Tool From Apple Watches
Apple is planning to remove its blood-oxygen feature from the Apple Watch Series 9 and Apple Watch Ultra 2, to circumvent a US ban of the devices.
Apple Watches Banned again in U.S.
From Jan. 18, Apple will again be banned from selling Apple Watch Series 9 and Ultra 2 devices in the US due to its ongoing patent infringement case with Masimo.
Apple iOS 18.6.1 restores blood oxygen monitoring in the United States
Apple has released iOS 18.6.1 for U.S. iPhones only, bringing a Blood Oxygen monitoring update.
Apple watchOS 11.6.1 restores blood oxygen monitoring in the United States
Apple has released watchOS 11.6.1 in tandem with iOS 18.6.1 bringing a Blood Oxygen monitoring update in the United States.
Masimo sues US Customs over Apple Watch Blood Oxygen feature
Masimo has filed a lawsuit against U.S. Customs and Border Protection (CBP) over the reactivation of the Apple Watch’s Blood Oxygen feature.
US Customs asks court to dismiss Masimo case
Masimo recently filed a lawsuit against U.S. Customs and Border Protection, accusing the agency of improperly allowing Apple to resume selling Apple Watches with the Blood Oxygen feature activated.
US Jury orders Apple to pay Masimo $634M in never ending patent fight
A federal jury in California has found that Apple infringed on a Masimo patent for its pulse oximetry technology and awarded Masimo $634 million in damages.
Apple Watch Blood Oxygen Workaround Doesn’t Infringe on Masimo Patents
U.S. International Trade Commission (ITC) judge has determined that Apple’s current methods of leveraging blood oxygen sensing on Apple Watch do not infringe on Masimo’s patents
Apple has released iOS 18.6.1 for U.S. iPhones only, bringing a Blood Oxygen monitoring update.
Apple have introduced a redesigned Blood Oxygen feature for some Apple Watch Series 9, Series 10, and Apple Watch Ultra 2 users through an iPhone and Apple Watch software update.
Users with these models in the U.S. who currently do not have the Blood Oxygen feature will have access to the redesigned Blood Oxygen feature by updating their paired iPhone to iOS 18.6.1 and their Apple Watch to watchOS 11.6.1.
Following the update, sensor data from the Blood Oxygen app on Apple Watch will be measured and calculated on the paired iPhone, and results can be viewed in the Respiratory section of the Health app.
The absence of the blood oxygen monitoring feature was due to a legal dispute between Apple and medical technology company Masimo.
This redesigned feature seems to avoid the dispute. “This update was enabled by a recent U.S. Customs ruling,” Apple says.
There will be no impact to Apple Watch units previously purchased that include the original Blood Oxygen feature, nor to Apple Watch units purchased outside of the U.S.
Apple blood oxygen monitoring
Back in December 2023, Apple withdrew the Apple Watch Series 9 and Apple Watch Ultra 2 from sale because of the blood oxygen monitoring feature.
The watches were back on sale in January 2024 but the blood oxygen monitoring feature had been removed. And since then, all Apple Watches sold in the U.S. have lacked the feature.
iOS 18.6.1 Supported Devices
- iPhone 16
- iPhone 16 Plus
- iPhone 16 Pro
- iPhone 16 Pro Max
- iPhone 15
- iPhone 15 Plus
- iPhone 15 Pro
- iPhone 15 Pro Max
- iPhone 14
- iPhone 14 Plus
- iPhone 14 Pro
- iPhone 14 Pro Max
- iPhone 13
- iPhone 13 mini
- iPhone 13 Pro
- iPhone 13 Pro Max
- iPhone 12
- iPhone 12 mini
- iPhone 12 Pro
- iPhone 12 Pro Max
- iPhone 11
- iPhone 11 Pro
- iPhone 11 Pro Max
- iPhone Xs
- iPhone XS Max
As normal, to update to iOS 18.6.1 go to your iPhone Settings > General > Software Update and install iOS 18.6.1 as soon as you possibly can.



