Get the Highlights
A Health Revolution At Your Fingertip
Unprecedented precision
CIRCUL is not just a ring; it's your personal health advisor. Combining cutting-edge sensor technology with AI algorithms, CIRCUL brings professional-grade precision monitoring to your fingertip.
Meet the SST™ Ultra 2.0 Enhanced Sensors
We engineered every detail — from advanced PPG sensors to intelligent algorithms — to create the most precise health monitoring experience ever.
Continuous Photoelectric Sensors
3-Wavelength Photoelectric Sensors
G-Sensor
High-precision Temperature Sensor
Next-Gen Health Precision Monitoring
Professional-Grade Reliability
In accordance with the standards of the American Academy of Sleep Medicine (AASM), heart rate and blood oxygen data can be updated every second.— Achieving the highest resolution and precision data in the industry
See your heart’s story at a glance. HR, HRV, and rhythm trends are integrated for a clear, visual snapshot. Quickly grasp how your heart moves through the day.
Nightly oxygen and sleep patterns are monitored, sleep debt is tracked, and bedtime/nap alerts help you wake up refreshed and energized.
By analyzing nightly blood oxygen fluctuations, the system provides a personalized assessment of your Sleep Apnea risk.
Circul tracks temperature, HRV, and heart rate, integrated with cycle logging, providing women with wellness insights. Long-term data and optimized algorithms offer trend charts, ovulation/fertility predictions, and personalized cycle alerts.
Provides real-time updates every two seconds, supporting heart rate tracking across various activities such as running, swimming, and cycling.
Delivers one-tap, cuff-free blood pressure readings in seconds using an AI-powered 125 Hz PPG algorithm—measure systolic and diastolic pressure anytime, anywhere, without an arm cuff or bulky device. This feature is intended for research and innovation purposes only.
Not only counts steps and calories burned, but also intelligently identifies five different exercise modes, offering comprehensive activity data analysis and improvement plans.
Continuous HR and HRV tracking captures every nuance of your body’s rhythm. Feel the flow of your day and understand your body like never before. Advanced algorithms ensure each HRV change is captured precisely. Long-term trends are easy to see, letting you feel your recovery and readiness.
A brand-new way to read your body’s energy. Powered by CIRCUL RING 2 MAX’s true continuous monitoring, it blends heart rate, HRV, temperature, and sleep for more accurate, more meaningful insights.
Adaptive Sizing Design
24/7 All-day comfortable fit.
Say goodbye to complexity, embrace simplicity. The innovative SST™ flex design automatically adjusts to your finger size, ensuring comfortable wear and data accuracy—no more worries about sizing!
Why this design?
- Precision Fit
- 3 models (S/M/L) cover 15 sizes.* Our adaptive sizing ensures optimal sensor contact, delivering accurate data despite daily finger size fluctuations.
- All-Day Comfort
- SST™ technology automatically adjusts to your finger. Whether you're working out or resting, experience unparalleled comfort
- Versatile Wear, No Limits
- Designed for everyone—pregnant women, fitness enthusiasts, and arthritis patients can easily switch it to any finger, eliminating the hassle of frequent size changes due to swelling.
Technology Should Adapt To You, Not The Other Way Around.
At CIRCUL, we believe comfort and precision should never be compromised. Our revolutionary self-adapting smart ring embodies this philosophy, delivering a seamless health monitoring experience that fits every finger, every time.
Our Story Our Story
Sleep Apnea Risk Assessment
By analyzing nightly blood oxygen fluctuations, the system provides a personalized assessment of your Sleep Apnea risk.
Note: This feature is intended for wellness and risk awareness only. It is not a medical diagnostic tool. Please consult a healthcare professional if you experience significant breathing irregularities.
Comprehensive Sleep Analysis
Circul Ring delivers detailed sleep reports tracking your sleep stages, duration, and quality. View trends over time and gain insights into your sleep patterns to optimize your rest.
Personalized Sleep Recovery Index
Built on enhanced overnight oxygen trends and sleep-stage tracking, the updated index gives you a clearer view of how well your body restores each night. With sleep-debt insights and smart bedtime or nap reminders, it helps you wake up refreshed, build healthier routines, and stay ready for the day ahead.
Stress Management,
Effortlessly
Life moves fast, But your mind can slow down.
Real-time stress monitoring, Personalized relaxation suggestions, Helping you find calm amidst the chaos. CIRCUL, your personal meditation master.
Stress Insights In Real Time
Advanced HRV analysis tracks your stress levels continuously. See your body's response to daily challenges, instantly.
Personalized Calm
Turn data into tranquility. Receive tailored relaxation suggestions based on your unique stress patterns. Your path to balance, simplified.
HRV Precision: A New Era
Monitor your heart's rhythm with unparalleled detail. CIRCUL captures every beat, providing insights into your overall health and stress levels 24/7.
Note: This feature is intended for wellness and risk awareness only. It is not a medical diagnostic tool.
Millisecond Accuracy
Activity, Smarter and More Efficient
Break through your limits, Starting with understanding yourself. Making every drop of sweat count towards your goals. Get Started
Multiple Exercise Modes
Supports monitoring different types of activities, such as running and cycling.
Making every drop of sweat count towards your goals.
Expert Endorsements
We are Different
Professional Approval
Patented Design
Award-Winning
Research of Innovation
20+ Papers
*Circul Pro is a medical device and operates with its own dedicated medical-grade app. This app is entirely separate from the consumer wellness app used by the CIRCUL RING 2 MAX, and the two are not compatible.
Ready to Transform Your Health?
Trusted by Experts, Validated by Science
Discover why CIRCUL RING is the world’s trusted health ring.
