Circular Ring 2: World’s First Medical-Grade ECG Ring

Circular Ring 2: World’s First Medical-Grade ECG Ring

Take control of your health with Circular Ring 2—the most complete health-packed smart ring. Get 12+ health features, including FDA-cleared ECG, AI actionable insights, 140+ biometrics, and real-time tracking—all in a premium titanium design. No bulk, no distractions and no subscriptions.

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Detect early signs of heart conditions in just 30 seconds. Circular Ring 2 features an FDA-cleared ECG sensor, identifying irregular heart rhythms like aFib, tachycardia, and bradycardia. By measuring electrical heart activity directly from the finger, it provides hospital-grade accuracy, ensuring you catch warning signs early. With real-time insights and proactive alerts, it empowers you to take preventative action before symptoms escalate.

An AI-powered personal health strategist that learns your unique patterns and suggests exact actions to make you feel better. Kira analyzes 140+ biomarkers to deliver real-time, science-backed insights.

Live on Kickstarter

Estimated shipping on June. Get 57% OFF.

Most health wearables charge monthly fees, limiting access to key features unless you subscribe. Circular Ring 2 is different. With the most health-packed app available, it delivers advanced insights—ECG analysis, AI-driven health trends, stress forecasting, and sleep optimization—without extra costs. A one-time purchase gives you lifetime access to your health data, ensuring full control, privacy, and long-term well-being.

Your health is a system of cycles, rhythms, and signals. Circular Ring 2’s 12+ advanced features help you understand and optimize your well-being.

Expertly crafted like fine jewelry, Circular Ring 2 is both elegant and sleek. Made from premium titanium, it weighs just 2 grams—offering an unrivaled balance of strength and lightness for all-day comfort. Hypoallergenic and waterproof, it’s designed to withstand every moment of your life with grace. Available in Obsidian Black, Gold, Silver, and Rose Gold, each ring exudes timeless sophistication, making health tracking as beautiful as it is effortless.

Live on Kickstarter

Estimated shipping on June. Get 57% OFF.

Your health changes by the minute—shouldn’t your tracker keep up? Circular Ring 2 captures biometric data every 2 minutes, delivering 5× more granularity than standard wearables. More data means smarter insights—from heart rate and HRV to SpO₂, temperature, and sleep patterns—giving you a clearer picture of your well-being. Detect early warning signs, optimize recovery, and get truly science-backed guidance from Kira, tailored to your unique needs.

Circular Ring 2 is designed for 24/7 wear, so you never miss a beat. Unlike most wearables that require daily charging, Circular Ring 2 lasts a full week—and with its 30-minute fast charge, you’re never left waiting.

Worrying about a parent who lives alone or a partner managing a health condition? With Circular Ring 2, you don’t have to wonder how they’re feeling—you’ll know. Log into the Circular app with the same account and get real-time insights into their well-being, from heart rate fluctuations to oxygen levels. Whether they’re miles away or just across town, you’ll have the peace of mind that they’re safe, healthy, and supported—because caring doesn’t stop with distance.

Live on Kickstarter

Estimated shipping on June. Get 57% OFF.

Your health data is yours and yours alone. Circular Ring 2 is built with privacy-first technology, ensuring that your personal insights remain secure, encrypted, and never shared without your consent.

Building healthy habits is hard—but Circular Ring 2 makes it easier. With gentle nudges, progress tracking, and daily encouragement, staying on track feels natural—not forced.

Sizing shouldn’t be a guessing game. Other brands send you a sizing kit, making you wait days just to find your size. More plastic waste, more delays. Circular Ring 2 does it differently. With our precise digital sizing tool, you get the perfect fit in seconds—right from your phone. No waiting. No extra packaging. That means faster shipping, less waste, and a ring that fits like it was made for you. Available in US sizes 6 to 13—so everyone gets the perfect fit, instantly.