20/02/2026
Getting a good ECG reading matters.
Follow these simple tips to improve signal quality and get clearer heart rhythm insights with Circular.
The world’s first ECG smart ring. Detect irregular heartbeat in 30 seconds and track 140+ biomarkers for sleep, stress and heart health — all guided by Kira AI.
Paris
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We are Wearables visionaries
We are a multicultural team with the same passion and will to build the next generation of wearable devices to improve human capabilities.
Everyone is unique. The Circular team believes in the power of assisted technology and wearable devices, but we often had the feeling that their true powers haven’t been unleashed completely. While designing Circular, our wish was to create a device that would rather assist us in making good decisions and responding to our body signals in a healthier way rather than just something that would simply tell us how good or bad we are doing. Everyone is unique. Whether it is in terms of lifestyle, fitness, thoughts, choices, recovery, health, or sleep patterns. Nevertheless, our mission is to empower your daily life, for you to perform at your best, both mentally and physically.
But to do this, we need to understand how you respond to your activities, daily choices, and rhythms, instead of just measuring the metrics.That’s why we were quickly concerned by cross-analyzing your data and taking into consideration your own data history and habits to deliver a truly personal experience and not simply hand out raw data. The tracking features hold their true benefits in this cross analysis. Day & Night tracking combined enables us to deeply understand how the body reacts to events and what it needs. The Circular team puts an emphasis on the personal recommendations offered by the app. That means that each user will have a unique experience as most recommendations on lifestyle will differ from one individual to another.