Masimo Sues Customs Over Apple Watch Import Approval
- After a period of unavailability due to a patent dispute, the blood oxygen monitoring feature is making a comeback to Apple Watch models in the United States.
- The removal of the blood oxygen feature stemmed from a dispute with Masimo, a medical technology company. Masimo sued US Customs over the approval of Apple Watch imports,...
- The reinstatement of the feature follows a resolution, though details remain limited.
Apple Watch Blood Oxygen Monitoring Returns to US users
Table of Contents
Published August 21, 2025
A Feature Restored After regulatory Hurdles
After a period of unavailability due to a patent dispute, the blood oxygen monitoring feature is making a comeback to Apple Watch models in the United States. This functionality, initially removed from the Apple Watch Series 9, Apple Watch Ultra 2, and subsequent models, is being reinstated through a software update released today, August 21, 2025. Users who previously relied on a workaround to access the feature will no longer need it.
The Road to Restoration: A Legal Battle
The removal of the blood oxygen feature stemmed from a dispute with Masimo, a medical technology company. Masimo sued US Customs over the approval of Apple Watch imports, alleging patent infringement related to its pulse oximetry technology. This legal challenge led Apple to temporarily halt sales of the Apple Watch series 9 and Ultra 2 with the blood oxygen sensor in the US and ultimately remove the feature via a software update to avoid further legal complications.
The reinstatement of the feature follows a resolution, though details remain limited. Apple has redesigned the feature,and the update will be available for Apple Watch Series 9,10,and Ultra 2 models.
How the Feature Works and Its Potential Benefits
The blood oxygen sensor on the Apple Watch uses red and infrared light to estimate the percentage of oxygen in your blood.This data can provide insights into your overall wellness and respiratory health. While not a substitute for medical diagnosis, it can be a useful tool for tracking trends and identifying potential concerns. The feature is designed to be used on-demand, providing spot checks of blood oxygen levels.
Experts suggest that monitoring blood oxygen levels can be particularly valuable for individuals engaging in high-altitude activities, monitoring respiratory conditions, or assessing overall fitness during exercise. However, it’s crucial to remember that numerous factors can influence blood oxygen readings, and consulting with a healthcare professional is always recommended for interpreting results.
What This Means for Apple and the Wearable Tech Market
The return of the blood oxygen feature is a positive advancement for Apple and its customers. The initial removal of the feature raised concerns about the future of health-focused functionalities on the Apple Watch. Restoring this capability demonstrates Apple’s commitment to providing comprehensive health tracking tools. Analysts at uk.finance.yahoo.com suggest that the availability of this feature could positively impact Apple Watch sales.
