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 medical-grade precision monitoring to your fingertip.
Meet the SST™ Ultra 2.0 sensors
We engineered every detail — from advanced PPG sensors to intelligent algorithms — to create the most precise health monitoring experience ever.
Flexible Photoelectric Sensors
3-Wavelength Photoelectric Sensors
G-Sensor
High-precision Temperature Sensor
Next-Gen Health Precision Monitoring
Medical-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
Updates data every second with an accuracy of ±2 bpm, providing highly accurate heart rate information to help users promptly identify cardiac health abnormalities.
Thoroughly analyzes sleep stages, including light, deep, and REM (rapid eye movement) sleep, offering detailed sleep quality reports to help improve sleep habits.
Identifies mild, moderate, and severe apnea, aiding in the early detection of potential sleep issues.
Offers real-time tracking with second-level updates help users to assess respiratory health.
Provides real-time updates every two seconds, supporting heart rate tracking across various activities such as running, swimming, and cycling.
Achieves an accuracy of ±0.1°C, updating every minute to quickly detect temperature anomalies, especially during menstrual cycle tracking and flu seasons or pandemics.
Not only counts steps and calories burned, but also intelligently identifies five different exercise modes, offering comprehensive activity data analysis and improvement plans.
Achieves millisecond-level accuracy, continuously analyzing heart rate variability, which is invaluable for evaluating overall health and stress levels.
Conducts continuous stress assessments based on HRV data, helping users understand and manage their stress levels effectively.
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
- One ring covers three 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 Monitoring
Continuously monitor SpO2 levels throughout the night, detecting potential breathing disturbances that indicate sleep apnea. Receive cautions for drops in oxygen levels without the need for bulky medical equipment.
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
Designed to measure how effectively your body recovers during sleep, helping you understand whether your sleep is restoring your energy and preparing you for the challenges of 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.
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
Activity, Smarter and More Efficient
Break through your limits, Starting with understanding yourself. Making every drop of sweat count towards your goals.
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
Ready to Transform Your Health?
Trusted by Experts, Validated by Science
Discover why CIRCUL RING is the world’s trusted health ring.
