How to Track blood-Oxygen Saturation without Apple Watch Sensors

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In a strategic move to address a contentious patent dispute, Apple has reportedly decided to remove blood-oxygen sensors from certain models of its smartwatches, a development that aims to evade a potential U.S. ban on its products. This decision is a direct response to an ongoing feud with Masimo Corp., a prominent health tech company that has been locked in a battle with Apple over the patent rights related to this technology.

The Genesis of the Patent Dispute

The dispute in question stems from Masimo Corp.’s claim that Apple infringed upon its patents by incorporating blood-oxygen tracking technology into its smartwatches. The feature in question made its debut with the Series 6 Apple Watch in 2020, captivating users with its ability to monitor blood-oxygen levels.

Apple Watch’s Decision to Remove Blood-oxygen Sensors: Implications and Analysis

ITC’s Initial Ruling

The U.S. International Trade Commission (ITC) became involved in this dispute when Masimo filed a complaint in 2021. In response to Masimo’s complaint, the ITC issued orders in October that threatened to ban Apple from importing and selling watches equipped with the blood oxygen feature. This initial ruling sent shockwaves through both companies, as the outcome could have had significant ramifications for Apple’s smartwatch business.

Apple’s Temporary Halt in Sales

As a result of the ITC’s decision, Apple took a drastic step by temporarily halting the sale of its Apple Watch Series 9 and Apple Watch Ultra 2, which were part of its latest lineup of smartwatch models. The rationale behind this decision was Apple’s concern that the ban could adversely affect users who heavily relied on the watches’ safety and health features, including the blood-oxygen monitoring feature.

Apple swiftly appealed the ITC’s decision, emphasizing that it strongly disagreed with the order. In an emailed statement issued last month, the company expressed its commitment to exploring legal and technical avenues to ensure the availability of the Apple Watch to its customers in the United States. Apple’s message was clear: it would take all necessary measures to expedite the return of the affected products to the market.

The ITC’s Interim Stay

An interim stay granted by the ITC provided Apple with a temporary reprieve, allowing it to reintroduce the Apple Watch Series 9 and Apple Watch Ultra 2 to the market late last month. This development, while offering a sigh of relief for Apple and its customers, did not resolve the underlying patent dispute with Masimo.

Masimo’s Response and Perspective

Masimo Corp., headquartered in California, seized the opportunity to assert its position in this high-stakes legal battle. The company accused Apple of violating its patents and insisted that even a tech giant like Apple must abide by the law. In an emailed statement, Masimo stated, “The decision to exclude certain foreign-made models of the Apple Watch demonstrates that even the world’s most powerful company must abide by the law.” Masimo’s standpoint underscores the importance of intellectual property rights in the tech industry.

Apple’s Innovative Solution: Removing Blood-Oxygen Sensors

In a strategic move to resolve the patent dispute and ensure its products remain in the market, Apple has decided to remove blood-oxygen sensors from certain models of its smartwatches. This move represents a compromise that aims to sidestep the import ban while allowing Apple to maintain its presence in the wearable tech market.

Implications of Apple’s Decision

The implications of Apple’s decision are multifold. By choosing to remove the blood-oxygen sensors from specific smartwatch models, the company may be able to continue catering to its customer base without further legal entanglements. However, this strategic maneuver also raises questions about the future of blood-oxygen monitoring in Apple’s product lineup. Will it be limited to specific models, or will Apple seek alternative technologies to replace the removed sensors?

The Broader Landscape of Patent Disputes in Tech

The ongoing battle between Apple and Masimo sheds light on the larger landscape of patent disputes within the tech industry. Intellectual property rights are a cornerstone of innovation, and conflicts over patents are not uncommon. Companies, regardless of their size or influence, must navigate these challenges while adhering to the principles of fair competition and legal compliance.


In conclusion, Apple’s decision to remove blood-oxygen sensors from select smartwatch models represents a strategic move to address the patent dispute with Masimo Corp. This decision, while allowing Apple to continue its smartwatch business, underscores the significance of intellectual property rights in the tech world. As both companies navigate the legal complexities, the future of blood-oxygen monitoring in Apple’s products remains an intriguing question. In the ever-evolving tech landscape, innovation and legal compliance must coexist for the benefit of both companies and consumers alike.


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