That means having a device that can take spot readings at any time, makes it a hugely powerful health tool to have at your disposal,” he said. How do ECG smartwatches work? Most watches have a ...

Circular revealed its new Ring 2 smart ring at CES 2025 on Sunday. Its key feature is an FDA-approved ECG for detecting AFib, with promises for future heart health tools. It starts at $349, ships ...