Apple Vs Masimo
- Nebual Ari
- Jan 21, 2024
- 4 min read
Updated: Feb 26

The world of wearable technology is witnessing yet another high-stakes patent dispute—this time, between tech giant Apple and Masimo, a leading medical technology company. The battle centers around pulse oximetry technology, a key feature in modern smartwatches that measures blood oxygen levels using optical sensors.
The Patent Dispute: What’s at Stake?
Apple and Masimo have been at odds over intellectual property rights for several years. The controversy stems from Masimo’s claim that Apple unlawfully incorporated its proprietary blood oxygen monitoring technology into the Apple Watch without permission. The patents in question cover non-invasive optical sensors that detect blood oxygen saturation, a crucial feature in Apple’s high-end smartwatches since the Apple Watch Series 6.
Masimo alleges that Apple not only stole its technology but also poached key employees to gain an unfair advantage in the wearable medical tech space. According to Masimo, Apple engaged in corporate espionage, hiring Masimo’s top engineers and executives with deep knowledge of its proprietary sensor technology, then integrating similar features into its products without licensing agreements.
The Legal Battle Unfolds
Masimo took the fight to the courtroom, filing lawsuits against Apple in both federal court and the U.S. International Trade Commission (ITC). The ITC ruled in Masimo’s favor, leading to a temporary import ban on certain Apple Watch models, particularly those equipped with blood oxygen monitoring capabilities. This marked a significant moment, as Apple was forced to halt sales of its latest Apple Watch models in the U.S. for a brief period.
In response, Apple filed counterclaims, arguing that Masimo’s patents were either invalid or not infringed upon. Apple asserts that its blood oxygen sensor technology was developed independently and does not rely on Masimo’s proprietary designs.
The case is now playing out across multiple legal fronts, with Apple seeking to overturn the ITC ban and Masimo pushing for financial damages and licensing agreements.
Apple vs. Masimo: A History of Tension
The Apple-Masimo legal battle is not a new development. Their disputes date back to 2020, when Masimo first accused Apple of misappropriating its technology. Masimo’s initial lawsuit alleged that Apple engaged in deceptive hiring practices, recruiting Masimo employees under the guise of potential partnerships, only to extract proprietary information before severing ties.
Apple has denied these allegations, maintaining that its hiring practices were legitimate and that its engineers developed pulse oximetry technology from scratch. Despite these claims, the mounting lawsuits indicate that Masimo is determined to hold Apple accountable for what it perceives as a violation of its intellectual property.
Past Legal Clashes in Wearable Tech
Patent battles in the wearable technology sector are not uncommon. Some of the most well-known legal disputes include:
Fitbit vs. Jawbone: Fitbit and Jawbone were once fierce competitors in the fitness tracker market. Jawbone accused Fitbit of stealing trade secrets and filed multiple lawsuits. However, Jawbone’s financial troubles led to its eventual downfall, highlighting how costly and drawn-out patent disputes can be.
Apple vs. AliveCor: AliveCor, a medical device company, sued Apple over its ECG monitoring technology, claiming that Apple’s smartwatch ECG feature infringed on its patents. Apple fought back, leading to ongoing legal battles over intellectual property rights.
Nike vs. Adidas: Nike’s Flyknit technology led to a major patent dispute with Adidas, which Nike accused of copying its innovative sneaker design. The case was ultimately settled out of court, but it underscored the importance of patent protection in the footwear industry.
The Apple vs. Masimo dispute follows a similar trajectory, reflecting the growing overlap between consumer technology and medical-grade innovations. As smartwatches evolve into health-focused devices, the stakes in patent litigation are becoming higher than ever.
The Impact on Apple and the Wearable Tech Industry
The outcome of this legal battle could have major implications for both Apple and the broader wearable technology industry. If Masimo prevails, Apple may be forced to pay significant damages, enter into a licensing agreement, or redesign its blood oxygen sensor technology to comply with patent laws.
A ruling against Apple could also encourage other medical technology firms to scrutinize Apple’s patents more aggressively, potentially leading to more lawsuits and regulatory challenges in the future.
On the other hand, if Apple successfully overturns the ITC ban and invalidates Masimo’s patents, it could strengthen its position as a leader in wearable health technology and set a precedent for how tech companies defend themselves against IP claims.
What Lies Ahead?
The Apple vs. Masimo case is far from over. With multiple legal proceedings underway, the final outcome could take years to unfold. The central questions remain:
Will Apple be forced to modify its smartwatch technology?
Will Masimo secure a licensing deal or financial settlement?
Will this dispute set new legal precedents for health-focused wearables?
Regardless of the outcome, one thing is clear: Intellectual property battles in the wearable tech industry are here to stay. As smartwatches become increasingly sophisticated, companies will continue to fight for the right to claim ownership over groundbreaking medical technologies.
For now, all eyes are on the courtroom, where Apple and Masimo are preparing for a legal showdown that could shape the future of wearable health tech for years to come.




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