Smart rings are emerging as wearable tools that can track key physiological signals 24, including systolic and diastolic readings. Unlike clinic-based pressure monitors that require frequent operator intervention, smart ring biosensors use advanced sensors to detect subtle changes in your body throughout the around the clock. These devices typically rely on PPG light-based sensing, which measures blood flow through the skin by shining light on the finger. By analyzing the time it takes for blood to pulse through your finger and the waveform morphology, the ring can estimate systolic and diastolic pressure trends with increasing precision.
The ring also integrates heart rate variability and accelerometer readings to improve accuracy. AI-driven analytical models establish personalized normative ranges and identify deviations that may indicate a spike in blood pressure. These algorithms are trained on large datasets of clinical measurements to detect signs of acute hypertension. When an sustained elevation in BP is detected—especially if it’s sustained or happens while inactive—the ring triggers discreet tactile cues or notifications on your paired smartphone.
Some smart rings can even send SOS messages to family members or offer real-time guidance like sitting down, practicing slow diaphragmatic breaths, or taking prescribed medication. Because they’re worn 24, they uncover hidden hypertensive events, such as those caused by emotional strain, sleep apnea, or sudden movement. While they are not FDA-cleared for diagnosis, smart rings offer critical pre-event alerts and help users visualize chronic fluctuations, enabling proactive health decisions or seek medical advice before a life-threatening complication arises.
