Smart ring maker Circular announced the next generation Ring 2 with ECG (electrocardiogram) and AFib (atrial fibrillation) detection functions at CES 2025 Opening on Sunday in Las Vegas. The wearable will go on sale in February or Mach for $380. Ring ECG and FDA-cleared AFib detection capabilities will give users the ability to monitor their heart health. The wearable can take a single-lead ECG, which is a method of recording the electrical activity of the heart, using a sophisticated PPG (photoplethysmogram) sensor. PPG sensors work by shining light onto the skin to measure changes in blood flow. Circular said the new ring comes with additional upgrades compared to the predecessor, including more battery life; the company promised eight days. It also comes with enhanced sensors to track key health metrics, including sleep analysis. The company also redesigned its companion app to allow for a more intuitive user experience. The announcement comes three years after Circular launched its first smart ring to take on Oura and Ultrahuman. “With Circular Ring 2, we have reimagined what a smart ring can do – combining advanced health technology with timeless design and unmatched durability,” said Cirucular CEO Amaury Kosman in a press release. “It’s not just wearable; it’s a statement that empowers users to take control of their health without compromising on style. The ring will be available in four finishes: gold, silver, black, and rose gold. Circular is also launching a Digital Ring Size feature that can be accessed on smartphones before placing an order.Circular Ring 2 will be launched in several countries including the United States, the United Kingdom, and France.
