Circular

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.

No subscription for 13+ core features.

This Easter, no egg hunting required.Circular doesn't hide what your body is telling you: Kira finds it and brings it st...
05/04/2026

This Easter, no egg hunting required.

Circular doesn't hide what your body is telling you: Kira finds it and brings it straight to you.

Enjoy the Easter and be present with the people you love.

If anything needs your attention — your sleep, your stress, your heart, Kira will let you know.

And if you've been thinking about gifting something that keeps giving long after the weekend passes, Circular Ring 2 is a quiet way to say I want you around for a long time.

For you, or for someone you love https://bit.ly/Get_CircularRing

April is here.The month the world stops to talk about stress, health, and what it actually means to feel well.And we thi...
03/04/2026

April is here.

The month the world stops to talk about stress, health, and what it actually means to feel well.

And we think the best way to honour that conversation is to make it easier to do something about it.

This April, in honour of Stress Awareness Month and World Health Day on April 7th, we're offering $50 off Circular Ring 2.

For you, or for someone you love.

https://bit.ly/Get_CircularRing

Real results speak louder than features.Your feedback shapes what we improve, what we fix, and what we build next.And ac...
31/03/2026

Real results speak louder than features.

Your feedback shapes what we improve, what we fix, and what we build next.

And across our community, one thing is clear:

When people understand their sleep and stress,
they make better decisions.
They feel better.
They perform better.

Circular Ring 2 delivers that clarity through 140+ biomarkers — including sleep stages, HRV, stress tracking, and ECG heart insights.
With Kira AI, every signal becomes actionable and personal.

It’s not just tracking. It’s understanding.
And it's built together with you.

This past month has been focused on one clear priority: making your Circular experience stable, reliable, and smooth aga...
27/03/2026

This past month has been focused on one clear priority: making your Circular experience stable, reliable, and smooth again.

We have been working across the app, backend, and firmware to fix the core issues around syncing, scoring, and performance. Step by step, these improvements are now coming together.

With the latest updates, syncing is faster, more accurate, and more stable. The connection between your ring and your phone is stronger, and your data is handled more reliably both online and offline.

We are now entering the final phase of this effort. The upcoming updates will complete the remaining fixes, especially around synchronization and scoring, so that the experience becomes fully consistent for everyone.

Thank you for your patience, your feedback, and for staying with us through this process. We are very close to closing this chapter and moving forward with a stronger foundation.

March is coming to an end.The leaderboard is almost finalized.🔸Who stayed consistent this month?🔸What habit improved you...
25/03/2026

March is coming to an end.
The leaderboard is almost finalized.

🔸Who stayed consistent this month?
🔸What habit improved your score this month?

Results are coming soon. 🏆

Already a Circular user? Open the app, opt in, and make April your month.
Not on Circular yet? There's no better time to start. https://bit.ly/Get_CircularRing

Most devices tell you what happened. Circular tells you what’s about to.With Proactive Health AI, Circular Ring 2 detect...
23/03/2026

Most devices tell you what happened. Circular tells you what’s about to.

With Proactive Health AI, Circular Ring 2 detects early signals of stress, poor recovery, and imbalance.

Using:
• HRV
• sleep analysis
• heart rhythm
• temperature
• 140+ biomarkers

Kira AI turns data into action:
→ alerts you early
→ guides you instantly
→ helps you recover faster

Including breathing exercises when your stress rises.

👉 Upgrade how you manage your health. https://bit.ly/Get_CircularRing

20/03/2026

We designed Circular for the moments when you need more clarity.

From stress insights to sleep quality to ECG, the ring supports you through your day.

Wellbeing becomes easier when you can see the whole picture.

https://bit.ly/Get_CircularRing

Most people think all sleep is the same. It’s not.REM sleep at 3am does something entirely different than REM sleep at 6...
18/03/2026

Most people think all sleep is the same. It’s not.

REM sleep at 3am does something entirely different than REM sleep at 6am.

▪ Earlier in the night, your body prioritizes physical recovery — deeper sleep, cellular repair, immune support.
▪ Closer to morning, REM becomes more dominant — shaping memory, emotional processing, and cognitive performance.

This is what most people miss:

It’s not just how much you sleep.
It’s when and how your sleep is structured.

Understanding your personal sleep architecture changes everything —
how you recover, how you perform, how you feel.

Circular Ring 2 tracks your sleep stages, timing, and recovery patterns through 140+ biomarkers, while Kira AI helps you understand what your nights are actually doing for you.

Explore your sleep → https://bit.ly/Get_CircularRing

A ring that does more than complete the look.The Circular Ring blends style and smart health tracking into one piece you...
16/03/2026

A ring that does more than complete the look.

The Circular Ring blends style and smart health tracking into one piece you’ll want to wear every day.

https://bit.ly/Get_CircularRing

Most people track steps.Few people understand their sleep.Yet sleep is where recovery, stress balance and heart health b...
13/03/2026

Most people track steps.
Few people understand their sleep.

Yet sleep is where recovery, stress balance and heart health begin.

This World Sleep Day, take your sleep seriously.

Circular Ring 2 helps you understand your nights with:

💤 ECG heart rhythm monitoring
💤 Sleep cycle tracking
💤 Stress & HRV insights
💤 140+ biomarkers analyzed by Kira AI

No subscription required for 13+ core features.

Because the best upgrade you can make…
is to your sleep.

Explore Circular → https://bit.ly/Get_CircularRing

Extreme days don’t build wellness.Consistency does.The Circular Leaderboard rewards steady habits, the quiet routines th...
11/03/2026

Extreme days don’t build wellness.
Consistency does.

The Circular Leaderboard rewards steady habits, the quiet routines that improve sleep, recovery, and energy over time.

Because real progress isn’t loud.
It’s consistent.

Women understand their bodies in ways the world is only beginning to measure.From sleep patterns to stress signals, horm...
08/03/2026

Women understand their bodies in ways the world is only beginning to measure.

From sleep patterns to stress signals, hormonal cycles to recovery rhythms, every day your body communicates what it needs.

At Circular, we believe technology should help women understand those signals better — with insights that support wellbeing, balance, and long-term health.

Today we celebrate the strength, intuition, and resilience of women everywhere.
And the science that helps support them.

https://bit.ly/Get_CircularRing

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Site Web

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Our Story

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.