
Monitoring for more than just fitness
Tested, calibrated and validated against clinical devices. CIRCUL tracks blood oxygen (SPO2) levels 100 high-continuous precision measurements per second.
Monitors respiratory conditions like COPD, asthma, pulmonary fibrosis, cystic fibrosis, scleroderma, and sleep disorders (like sleep apnea).
Helps with the early detection of COVID-19 by tracking blood oxygen level + silent hypoxia.
Continuity is the recipe for precise evaluation. Monitors for continuous blood oxygen, heart rate detection which can be used for vital signs monitoring, sleep evaluation and exercise assessment.

It is estimated over 22 million people suffer from sleep apnea, with 80 percent of the cases of moderate and severe obstructive sleep apnea undiagnosed. CIRCUL Ring can help you detect signs of sleep apnea with consistent monitoring of oxygen levels, quantity and quality of sleep.

Respirologists have noticed many patients with COVID-19 experience silent hypoxia (low blood oxygen level) days before they seek medical attention because of shortness of breath. A pulse oximeter which measures blood oxygen saturation at every second of the day can serve as an early warning signal.
Fill out the form below to get a 25% discount on your CIRCUL™ Ring order.
A representative will contact you within 24 business hours.
Unlike other measuring devices, the CIRCUL sleep tracker ring was not calibrated on healthy people. CIRCUL has been calibrated and validated with clinical measuring devices on people with sleep disorders or lung diseases.
The perfect prerequisite for an optimized monitoring therapy.
- Patients’ SpO2 monitoring reports can be sent to monitoring center periodically and automatically
- Patients data can be displayed in the monitoring screen remotely in real-time
- Vital signs checking easily by mobile phone anytime and any place
- Remote monitoring of patients to avoid being infected by COVID-19 virus


Every snapshot of our vital values carries the risk of getting a false picture. Already in the second after our measurement, our values could look very different.
With CIRCUL’s continuous measurement, we can avoid the risk of getting a false picture.
1) TWO MODES: Sleep and Fitness
2) LIGHTWEIGHT AND COMFORTABLE: Weighs just 1/3 oz
3) ADJUSTABLE FIT: Two adjustable sizes (fits 5-12 mm ring size)
4) COMPATIBILITY: Android and iPhone
5) ALERTS: Program and receive alerts on your mobile device (Low Spo2%, High Heart Rate, etc.)

