Apple’s Bill Grows: Ordered to Pay $184M in Interest to Masimo

When it comes to interest payments, Apple is facing a massive bill after losing its appeal in a $634 million Apple Watch patent case. This amount far surpasses what most individuals pay in mortgage or credit card interest, making it a substantial financial hit for the tech giant.

The legal battle between Apple and health tech company Masimo finally concluded in July, with Apple being ordered to pay the $634 million jury verdict from November 2025. Despite Apple’s appeal, US District Judge James V. Selna upheld the decision, adding an additional $184 million in interest to the already hefty fine.

Apple argued that paying the interest would be a windfall for Masimo, but Judge Selna disagreed, citing the need to make the patent owner whole. The interest is based on the royalty payments Apple should have made to Masimo during the period of patent infringement, in addition to other damages included in the judgment.

Judge Selna determined an interest rate of 5.09%, considering both parties’ requested rates. This rate aims to compensate Masimo for the harm suffered due to Apple’s patent infringement, aligning with the principles of fairness and compensation.

The $634 million patent judgment is one of the largest in consumer technology history, highlighting the significance of intellectual property disputes in the tech industry. Despite Apple’s attempts to contest the damages, the court held firm in its decision, emphasizing the importance of honoring patent rights and protecting innovation.

This particular case is separate from the ITC decision that led to a ban on certain Apple Watch models in the US. Apple managed to address the issue and restore functionality without infringing on Masimo’s patents, but the financial repercussions from the earlier infringement still stand.

Overall, the case serves as a reminder of the complexities and consequences of patent disputes in the technology sector. It underscores the importance of respecting intellectual property rights and the need for companies to navigate legal challenges effectively to avoid substantial financial penalties.