After taking CES 2025 by storm, generating over 200 media stories, and winning 10 major industry awards, Circular is officially opening pre-orders for the Circular Ring 2. This next-generation smart ring is redefining the wearable landscape with FDA-cleared AFib detection and a suite of advanced health features, including activity, sleep, and stress tracking.
Circular is offering significant savings of up to $310 during its pre-order Kickstarter campaign ahead of rings shipping in early June 2025. Circular Ring 2, priced at $549, will be available for just $239 but only for those who get in quick with the super early bird orders. In addition, Circular is also announcing several feature updates for Ring 2, including new Digital Ring Sizing technology, a wireless charging case option, and a suite of women’s health features—all designed to provide the most seamless and personalized health-tracking experience to date. Key elements of the improved Circular Ring 2 include:
- Digital Ring Sizing – A Perfect Fit, Every Time
Sizing smart rings has always been a challenge. Circular Ring 2 introduces an industry-first Digital Ring Sizing technology, allowing users to measure their ring size directly from their smartphone before ordering. This eliminates the hassle of trial-and-error sizing, ensuring an effortless and custom-tailored fit.
2 Wireless Charging Case – Power Up, Anytime, Anywhere
No more fumbling with cables—the new Circular Ring 2 comes with an optional charging case offering seamless wireless charging. Users can store and charge their ring on the go, ensuring uninterrupted 24/7 health tracking with ease.
- Women’s Health & Cycle Tracking – Personalized Insights for Female Wellness
In a significant upgrade, Circular Ring 2 now includes a dedicated Women’s Health Suite, providing advanced cycle tracking, temperature monitoring, and insights into fertility, menopause, and overall well-being. These features empower women with personalized biometrics to better understand their health over time. - Advanced Health Monitoring – Real-Time AFib Detection & More
Unveiled at CES, the FDA-cleared AFib detection sets a new standard in heart health tracking. With enhanced ECG capabilities, sleep-stage analysis, and Kira AI-driven insights, Circular Ring 2 ensures users stay informed about their vital health metrics in real-time.
While the Ring 2 has a host of new features it still offers users several of the features from Circular’s previous Ring Slim including daily activity tracking, blood oxygen levels, energy levels, calories burned, heart rate and respiration rate, as well as recording sleep quality and disturbances, heart rate variability, REM cycles, and sleep and wake times.
“We’re constantly pushing the boundaries of innovation, and this new wave of features takes the Circular Ring 2 to unprecedented heights,” said Amaury Kosman, CEO and Co-Founder of Circular. “After listening closely to feedback from the media and industry at CES, we’ve refined the Circular Ring 2 to deliver a truly next-level experience—from hassle-free wireless charging to precision digital sizing and advanced health tools. Now, users have the unique opportunity to join us at the forefront of wearable technology and be part of this exciting journey from day one while benefiting from amazing savings!”
Kickstarter Pre-Order & Availability
The Circular Ring 2 is available for pre-order via Kickstarter from 5th March 2025. Early backers can receive discounts of up to $310.
The Circular Ring 2 is expected to ship in June 2025 following the closing of the campaign.
