Signal Ring has launched a wearable designed to track blood pressure from the finger without using a traditional inflatable cuff. The titanium smart ring is now available for preorder for $399, with initial shipments expected to begin in October 2026.
The purchase price includes a sizing kit scheduled to ship during July. Signal Ring was developed by Vital Signals, a health technology company founded by technology executive Tom Moss.
The device uses an optical sensor and proprietary algorithms developed over three years to estimate blood pressure and show how readings change throughout the day. The company said the technology has been tested using data from thousands of people.
Unlike some wearable blood pressure systems, Signal Ring is designed to operate without initial or recurring calibration using a traditional arm cuff. The company is positioning the product as a more convenient way to observe blood pressure patterns associated with sleep, stress, physical activity, meals, and other daily behaviors.
Traditional blood pressure monitors typically provide a single measurement at a given point in time. Signal Ring combines guided on-demand measurements with background tracking intended to give users a broader view of how their blood pressure changes during everyday life.
The ring’s Zen Mode guides users through episodic blood pressure check-ins under more controlled conditions. Users can also activate real-time sessions in the Signal Ring application to continuously track blood pressure during activities such as exercise.
Each measurement includes contextual information intended to help users understand what may have influenced the result. This approach is designed to make the information easier to interpret than isolated systolic and diastolic readings without additional context.
Vital Signals said Signal Ring’s accuracy was evaluated in a 451-person clinical study conducted across multiple sites. According to the company, the results met the requirements of ISO 81060-2, an international accuracy standard used for noninvasive blood pressure measuring devices, while additional studies remain underway.
Signal Ring is focused specifically on blood pressure rather than offering the capability as a secondary feature within a broader fitness tracker. Many existing wearable products primarily monitor activity, sleep and heart rate, while their blood pressure features may require cuff calibration or provide classifications instead of numerical readings.
Vital Signals believes longer-term blood pressure tracking could help users identify how lifestyle, activity and environmental factors relate to changes in cardiovascular health. The company also believes the information could support more informed conversations between users and healthcare professionals.
Signal Ring is not currently classified as a medical device and is intended for informational purposes only. It is not designed to diagnose, treat, cure or prevent any disease or medical condition.
The product remains investigational and has not been reviewed or cleared by the U.S. Food and Drug Administration. Vital Signals advises users not to rely on the ring as a replacement for professional medical advice, diagnosis or treatment.
The launch reflects growing demand for wearable devices that expand health monitoring beyond established categories such as exercise, sleep and heart rate. Vital Signals plans to use Signal Ring as the foundation of a broader platform focused on making blood pressure easier to measure and understand during daily life.
KEY QUOTES:
“I had a life-threatening hypertensive event a few years ago, and what stayed with me wasn’t just how serious it was but also how little I understood afterward. Without the right technology, I couldn’t actually see what my blood pressure was doing, or what was moving it, whether it was a workout, coffee or a stressful day. Signal Ring is designed so people won’t have to guess the way I did. It’s giving people a more convenient and reliable way to track and understand their blood pressure.”
Tom Moss, Founder and CEO of Signal Ring
“Blood pressure is highly dynamic, but traditional methods typically capture only snapshots. While wearables have changed how people understand movement, sleep and heart rate, blood pressure has been harder to capture during daily life, despite its role as a modulator of long-term health. A more continuous, contextual view with Signal Ring can help people and their clinicians have more informed conversations about factors affecting cardiovascular health over time.”
Dr. William Wilson, Medical Advisor to Signal Ring
