Circular Ring 2 Introduced with FDA-Cleared Heart Monitoring and Digital Sizing

The second-generation smart ring offers ECG and AFib detection, a titanium build, and a new phone-based sizing system.

The Circular Ring 2, unveiled at CES 2025, features an FDA-cleared atrial fibrillation detection algorithm and ECG functionality for advanced heart health monitoring.
A new digital ring sizing system uses smartphone cameras to eliminate the need for physical sizing kits, reducing waste and speeding up the ordering process.
The redesigned ring is made of titanium, available in four finishes—gold, silver, rose gold, and black—and offers up to eight days of battery life.
A revamped app with an improved user interface and AI assistant aims to provide more intuitive and actionable health insights.
The Circular Ring 2 will launch via a crowdfunding campaign in January, with retail availability expected in February or March 2025 at a price of $380.