How accurate is the blood pressure measurement by smart wristbands?
Disease description:
My child sees that I go to the hospital every day to measure my blood pressure, and he finds it inconvenient. He bought me a smart wristband for measuring blood pressure. Is this method accurate?
Doctor's answer (1)
Dr. Tian Hongbo
Although smart wristbands provide a convenient non-invasive method for blood pressure monitoring, their accuracy still has certain limitations compared to professional medical devices.
Smart wristbands mainly use photoplethysmography (PPG) technology to estimate blood pressure. While this technology offers convenient wearability, the stability and precision of the results may be affected by various factors such as environmental conditions, specific placement of the wristband, and individual physiological differences, which can lead to fluctuations or inaccuracies in measurements.
Professional blood pressure monitoring devices, such as cuff-based instruments, typically feature high-precision sensors and algorithms that have undergone rigorous validation, providing more accurate and reliable blood pressure readings. These devices are generally used in situations requiring precise blood pressure monitoring, such as daily management of hypertension patients or cardiovascular disease risk assessment.
For individuals who already have hypertension or are at risk of cardiovascular diseases, it is recommended to regularly and accurately monitor their blood pressure.
