US judge declares mistrial in Apple-Masimo smartwatch trade secrets fight

A U.S. judge in California on Monday declared a mistrial in Masimo Corp's potential billion-dollar smartwatch trade secret lawsuit against Apple Inc after jurors failed to reach a unanimous verdict, multiple media outlets reported.

The jury in federal court in Santa Ana could not determine whether Cupertino, California-based Apple misused confidential information from Masimo related to the use of light to measure biomarkers including heart rates and blood-oxygen levels, U.S. District Judge James Selna said.

The jury began deliberating on April 26 after a trial lasting about three weeks.