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Circular Ring Slim - The Thinest Smart Ring

Circular Ring Slim
€294
'HSA | FSA Eligible logo with a checkmark.'
4.2
Rated 4.2 out of 5 stars
124 Reviews

No forced subscription

A cyclist navigates a sharp corner during a downhill mountain biking race.
12+ health & wellness features

'Simple black waveform icon on white background.'

Haptic feedback with vibrations

Choose Your Finish

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Choose Your Size

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14 Day Return Period

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The most health feature-packed smart ring

The Circular Ring is the only smart ring to utilize vibration instant feedback with Kira AI personal assistant to deliver 12+ features around your fitness & health improvement, providing actionable recommendations and redefining the wearable experience.

The most health feature-packed smart ring

The Circular Ring is the only smart ring with feedback and Kira AI to deliver 12+ features, providing actionable recommendations.

Why Choose Circular

Person in a maroon dress sitting in a car with a cream purse.

Track and understand women’s health with ease

A person lying in bed wearing a gold ring on their finger.

Achieve the restful sleep you deserve

Person wearing a black ring, resting hands on knees outdoors.

Boost your energy and live healthier

Man practicing yoga in a cozy living room.

Master stress management like a pro

Man sitting in gym, focused on smartphone.

Stay proactive with continuous health monitoring

Person meditating with hands together in a peaceful room setting.

Become a meditation & breathing expert instantly

Person in a maroon dress sitting in a car with a cream purse.

Track and understand women’s health with ease

A person lying in bed wearing a gold ring on their finger.

Achieve the restful sleep you deserve

Person wearing a black ring, resting hands on knees outdoors.

Boost your energy and live healthier

Man practicing yoga in a cozy living room.

Master stress management like a pro

Man sitting in gym, focused on smartphone.

Stay proactive with continuous health monitoring

Person meditating with hands together in a peaceful room setting.

Become a meditation & breathing expert instantly

Person in a maroon dress sitting in a car with a cream purse.

Track and understand women’s health with ease

A person lying in bed wearing a gold ring on their finger.

Achieve the restful sleep you deserve

Person wearing a black ring, resting hands on knees outdoors.

Boost your energy and live healthier

Man practicing yoga in a cozy living room.

Master stress management like a pro

Man sitting in gym, focused on smartphone.

Stay proactive with continuous health monitoring

Person meditating with hands together in a peaceful room setting.

Become a meditation & breathing expert instantly

Person in a maroon dress sitting in a car with a cream purse.

Track and understand women’s health with ease

The Ultimate Wearable Experience, Meet the Circles

Smartphone displaying sleep quality score and circadian rhythm monitoring.

Sleep Analysis


Keep track of your sleep effenciency with the powerful Circular Sleep Score and bio-signal analysis.


Smartphone displaying fitness metrics like energy score and breathing rate.

Energy Analysis


Quantify your activities and improve recovery with empowering metrics.

Smartphone displaying an alarm clock app with wake-up score and scheduled alarms.

Smart Alarm Clock


Silently wake up to vibrations and at the perfect moment, with the smart alarm feature, to wake up in the lightest sleep stage, feeling refreshed.


Smartphone displaying a sleep improvement app with a timer and pause option.

Guided Breathing Exercises


Dive into one of many Circular breathing exercises to get ready to sleep or to lower your stress. Create custom exercises and let yourself be guided by the ring's vibrations.


Smartphone displaying health alerts and vitals over the past 30 days.

Vital Alerts


Set threasholds to be alerted of abnormal Heart Rate or Blood Oxygenation levels.

Smartphone displaying a medication tracking app interface with dosage information.

Medication Reminder


Track your plan progress, get alerted through the ring’s vibrations, schedule your doses and see when you took or skipped your medication.


Smartphone displaying a health app with heart rate and activity data.

Live Measurement


Check on your Heart Rate, Blood Oxygenation, Heart Rate Variability and Activity Insensity, in real time.


Smartphone displaying a graph with monthly data trends on the screen.

Advanced Analysis


Designed to empower you by allowing the comparison and overlap of various health metrics on a single scale, enabling deeper correlations and insights.

Smartphone screen displaying a fitness app with weekly goal and recent activity summary.

Sport Sessions


See the GPS trace of your outdoor activity and set goalsk all while accurately tracking distance, calories and pace, live.


Smartphone displaying a stress-tracking app with a 3.6 stress level indicator.

Stress Score


Get hourly predictions and manage your stress everyday. The stress score lets you see how stressed your mind is at any given time.

Smartphone displaying a coherence score and data graphs on a purple-themed interface.

Coherence

Elevate your emotional state in the moment so you feel better and think more clearly. With just a few minutes of daily practice, coherence state becomes easily accessible.

Smartphone displaying a health and wellness app interface.

Personal Recommendations and Kira+

Get truly actionnable insights though Kira+, your revolutionary health & wellness AI. No need to be an expert, Kira does all of the work for you.

Smartphone displaying a calendar app and wellness score for September 2024.

Personal Calendar

Track your sport sessions, your streaks, breathing sessions and more. Add notes to correlate how you felt or what you did a certain day and see them change your biometrics on all graphs.

  • A triangular warning sign with an exclamation mark inside.
  • A single palm leaf in a clear glass of water on a white background.
  • A park scene in autumn with colorful trees and fallen leaves.
  • A raven silhouette with outstretched wings facing right.
  • Smartphone with content on screen beside a potted plant against a white background with sunlight shadows.
  • Green palm leaves against a white background.
  • Basketball player performing a layup in a dynamic action pose.
  • Smartphone on a table displaying an article, with a blurry green foreground and white background.
  • Smartphone on a table displaying an article, with a blurry green foreground and white background.
  • Smartphone on a table displaying an article, with a blurry green foreground and white background.
  • A triangle with labeled angles and a bisector.
  • Smartphone on a table displaying an article, with a blurry green foreground and white background.
  • A silhouette of a woman juggling five balls above her head.

Click on the circles to discover the features

Experience Circular in 4 easy steps

Silver smart ring with visible green interior electronics.

1 - Unbox, Charge and Wear

App icon with an orange circular design and download arrow overlay.

2 - Download the Circular App

Fitness tracking app showing running route, time, distance, calories burned, and average pace.

3 - Quantify and Adjust

Golden coin with a star in the center, surrounded by floating smaller coins.

4 - Earn rewards

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FAQ

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4.2
Rated 4.2 out of 5 stars
Based on 124 reviews
Total 5 star reviews: 80 Total 4 star reviews: 14 Total 3 star reviews: 12 Total 2 star reviews: 6 Total 1 star reviews: 12
76%would recommend this product
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124 reviews
  • K
    K
    Verified Buyer
    I do not recommend this product
    Rated 2 out of 5 stars
    4 months ago
    Nice Shop - no manual - no support

    The website is totally focussed on selling. Ring comes with no manual. There is a link on the package. Link points to the website, which is totally focussed on selling. Another ring could be all yours. Still no manual. You check the website…

    When it seems not cool to add a manual to the product why not at least give the user a link to a guide that they can read on their mobile?

    Was this helpful?
    C Profile picture for Circular
    Circular
    2 months ago

    Thank you for your feedback! To reduce paper waste and minimize our environmental impact, the user guide for the Circular Ring is accessible via a QR code printed on the packaging. By scanning the QR code, you can quickly access all the information you need in a convenient digital format.

    We’re committed to making choices that are better for the planet, and we appreciate your understanding and support in this effort. Should you encounter any issues accessing the guide or have further questions, feel free to contact us—we’re here to help!

  • FM
    Fabian M.
    Flag of Switzerland
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Good customer support

    I'm out of the calibration period that is a bit long (14 days). I got stuck after that but the support helped me unlocking it. The Circular Ring is a great device for monitoring my health. Highly recommended for the health-conscious!

    Was this helpful?
    C Profile picture for Circular
    Circular
    5 months ago

    Thank you so much for your feedback! 🙌 We're glad our support team was able to assist you in unlocking your Circular Ring after the calibration period. It’s great to hear that you're enjoying the health monitoring features. If you ever need further assistance, don’t hesitate to reach out! 😊💪 Keep prioritizing your health.

  • OH
    Ole H.
    Flag of Norway
    Verified Buyer
    Rated 3 out of 5 stars
    7 months ago
    Data is good, hardware is not durable

    Don't wear the ring if you do any outdoor activities. I'm doing some climbings and the color has peeled off. Bluetooth can be a mess sometimes. Aside that using the Circular Ring for a few weeks and the ring provides detailed analyses of sleep and activity, and it's comfortable to wear. The app also provides useful reminders and personalized recommendations.

    Was this helpful?
    C Profile picture for Circular
    Circular
    5 months ago

    Thank you for your feedback! 🙏 We're glad to hear you're finding the data insights and app features helpful. However, we’re sorry to hear about the wear and tear during outdoor activities and the Bluetooth issues. We’ll definitely take this into account for future improvements. Feel free to reach out to our support team if you'd like assistance with these concerns. 💪🔧

  • EN
    Emma N.
    Flag of Denmark
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    I recommend

    Very satisfied!

    Was this helpful?
    C Profile picture for Circular
    Circular
    5 months ago

    Thank you for the recommendation! 😊 We're thrilled to hear you're enjoying your experience with the Circular Ring. If you ever have any questions or need assistance, feel free to reach out! 💍✨ #StayHealthy

  • SB
    Sophia B.
    Flag of Austria
    Verified Buyer
    Rated 3 out of 5 stars
    7 months ago
    It never works!

    My app does not detect my ring! The ring is comfortable but that's all. Data is always missing.

    Was this helpful?
    C Profile picture for Circular
    Circular
    5 months ago

    We're sorry to hear about the trouble you're experiencing with your Circular Ring. 😔 Please reach out to our support team, and we'll assist you in resolving the app detection and data issues as quickly as possible. Your satisfaction is important to us, and we’re here to help! 🙏

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