Garmin, Coros Settle CardiacSense Patent War Over Smartwatch Heart Tech

November 13, 2025

A complex web of lawsuits between Israeli health-tech company CardiacSense and the major wearable brands Garmin and Coros has quietly concluded following a year of litigation. The dispute was centred on cardiac monitoring technologies used in sports and health wearables, but now appears to have ended with two confidential settlements. Past history and the nature of the specific settlements suggest potentially significant implications for the future of the smartwatch market.

CardiacSense is known for its medical-grade wrist-based heart rate and arrhythmia detection sensors. It has long positioned itself between consumer wearables and regulated medical devices. This is a competitive area where Garmin, Coros and many other wearables companies innovate heavily, leading to this high-stakes dispute. The 5k Runner