On November 24, the National Market Supervision Administration of China disclosed that the Beijing Institute of Metrology and Testing Technology has recently achieved a new breakthrough in smartwatch measurement technology, successfully developing a calibration device for measuring physiological parameters such as blood oxygen and heart rate in smartwatches, ensuring more accurate health monitoring data through precise measurement technology.
The new achievement includes a high-precision human simulation robot in the smartwatch calibration device, which can simulate blood oxygen saturation levels from 35% to 100% (with an error of ≤2%) and a heart rate range of 30 to 300 beats per minute (with an error as low as 1%), equivalent to a monitoring error of less than one beat per minute for healthy individuals, providing a unified measurement “scale” for blood oxygen and heart rate parameters in smartwatches.
Additionally, the newly developed “Calibration Specification for Key Parameters of Smartwatches (Draft for Comments)” distinguishes between two monitoring states: exercise and rest, standardizing the methods for assessing the repeatability, measurement error, and uncertainty of parameters such as step counting, timing, distance measurement, blood oxygen, and heart rate, ensuring consistent and reliable measurement results during both exercise and rest.
In recent years, China has introduced a series of policies to promote the technological research and industrialization of wearable devices such as smartwatches. An industry report released by the China Business Industry Research Institute indicates that the market size of China’s smartwatch industry will reach 37.47 billion yuan (RMB) in 2024, with an average annual compound growth rate of 7.41% from 2020 to 2024, and the market size is expected to reach 41.38 billion yuan by 2025.
Currently, an increasing number of people are using smartwatches to self-monitor indicators such as heart rate, blood oxygen, and sleep, as an important means of self-health management. This technological breakthrough in the reliability and accuracy of physiological parameter monitoring data for smartwatches provides strong measurement technical support for the rapidly growing smartwatch market.
The National Market Supervision Administration stated that it will accelerate the implementation of measurement technology achievements for smartwatches, establish public measurement standard devices, and corresponding national measurement technical specifications, providing strong measurement support for the accuracy and reliability of health monitoring data from smartwatches and other smart wearable devices. (End) Source: China News Service, Reporter Liu Liang
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