The compensation Apple is required to pay Masimo has increased by $184 million, bringing the total amount to $818 million. This adjustment accounts for interest on the original debt, as reported by Bloomberg Law.
Judge James V. Selna rejected Apple's argument that the interest payment would provide Masimo with an unfair profit. The court determined that the interest serves to restore the patent holder's financial position to what it would have been had licensing payments been made on time.
The judge declined Masimo's request to apply a 7 percent annual interest rate, which would have totaled $243 million. Instead, the court ordered the calculation to be based on Masimo's own borrowing rate, compounded annually from the date the patent infringement began.
The legal dispute centers on Masimo's pulse oximetry technology patent. In November 2025, a jury found that Apple Watch features, including heart rate notifications, infringed on this patent, initially ordering a $634 million payment.
Although Apple sought to overturn or reduce the penalty, Judge Selna dismissed the company's appeal in July 2026. Since the patent expired in June 2022, the ruling applies only to past sales and does not impact the functionality of current Apple Watch models.
