Circular has unveiled its latest smart ring, the Circular Ring 2, at CES 2025. This next-generation wearable combines elegant design with advanced health tracking features, including ECG functionality and FDA-cleared AFib detection.
The Circular Ring 2 is crafted from titanium and comes in four finishes: Gold, Silver, Black, and Rose Gold. Its durable yet stylish design makes it suitable for everyday wear.
Key Features
- ECG and AFib Detection: The Circular Ring 2 incorporates ECG functionality and an FDA-cleared algorithm for detecting atrial fibrillation (AFib), providing users with valuable insights into their heart health.
- Digital Ring Sizing: Circular introduces a digital ring sizing feature, allowing users to accurately determine their ring size using their smartphone before purchasing.
- Enhanced Sensors: The ring features improved sensors for more accurate tracking of health metrics.
- Extended Battery Life: With up to 8 days of battery life, the Circular Ring 2 allows for continuous health monitoring and sleep analysis.
- Wireless Charging: The ring comes with a new wireless charging dock for convenient recharging.
- Redesigned App: The Circular app has been updated with a more intuitive user interface and design that complements the ring’s aesthetics.

Availability and Pricing
The Circular Ring 2 is expected to be available for $380 following a crowdfunding campaign in January. Shipments are anticipated to begin in February or March 2025.