
Circul
Vital diagnostics,
easily portable
Circul is a lightweight, wearable ring equipped with built-in sensors for monitoring vital signs. The dynamic nature of these signs can pose challenges in diagnostics, especially in outpatient settings where vital function parameters are often assessed at a single point in time. Circul provides a valuable alternative with its capability for continuous measurement.

Circul
Ergonomic, lightweight, flexible: that's Circul
Many measuring devices for long-term diagnostics can be cumbersome and inconvenient to use, but Circul stands apart. Its ergonomic design ensures a comfortable fit, enhancing measurement accuracy as the ring sits snugly on the finger, allowing the sensors to function optimally. The ring housing automatically adjusts to fit each finger. Weighing only 9.0 grams, Circul is incredibly lightweight, allowing you to go about your daily activities without interference and ensuring a restful night’s sleep.
facts
facts
Easy handling and reliability
You often have to choose between simplicity of use and complexity of the measured values; not so with the Circul. It combines reliable data with a secure and comfortable grip.
Overview of measurement parameters
Heart rate | Single-lead ECG |
Blood pressure | Pedometer |
Finger temperature | Heart rate variability |
Sleep monitoring | Oxygen saturation of the blood |
Features

With Circul, sleep remains undisturbed
Thanks to its ergonomic design, Circul can be worn comfortably at night. This feature enables precise sleep monitoring, offering insights into sleep duration, quality, and vital parameters throughout the night.
Unique selling point

Circul simply fits
The revolutionary design allows everyone to wear the ring without any problems. It adapts easily to the anatomical conditions. To ensure the reliability of vital signs readings in hospital and at home, the ring needs the necessary support. The built-in SST technology ensures this and makes the Circul probably the best product in its class.
What vital signs does Circul measure?
The vital parameters monitored by the Circul ring focus primarily on the cardio-respiratory system. The ring functions as a traditional pulse oximeter, measuring blood oxygen levels and pulse rate. Both the heart and brain are highly sensitive to oxygen deficiency, which can lead to irreversible damage if blood oxygen levels are too low. Abnormal pulse rates—whether too fast or too slow—may indicate disturbances in the heart's stimulation system or metabolic stress. Tracking changes in pulse rate over time is crucial for diagnostics, as it is closely linked to stress levels.
Additionally, the Circul ring can generate a simple ECG using the finger, which can also aid in determining blood pressure. Regular physical activity is fundamental to a healthy life, and the Circul ring can track daily step counts, making it easier to quantify exercise and adjust goals as needed.

Downloads
Would you like to find out more about the Circul?
You can download an information package directly here. It contains clinical findings, brochures and images.
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