Huawei blood pressure health research results landing Huawei WATCHD officially released

Huawei WATCHD capable of monitoring blood pressure released

As is well known, hypertension is one of the most common chronic diseases in our daily lives, and it is the "culprit" that leads to various serious complications such as stroke, hypertensive heart disease, and renal failure. If not properly controlled, it can significantly increase the risk of developing heart, brain, and kidney diseases.

Moreover, due to the high work pressure and unhealthy lifestyle habits of modern young people, the age of onset of hypertension has begun to shift towards younger age groups. According to the first comprehensive analysis report on global trends in hypertension published in The Lancet, authored by Imperial College London and the World Health Organization (WHO), the number of adults aged 30-79 with hypertension worldwide has increased from 650 million to 1.28 billion over the past 30 years. Nearly half of them are unaware that they have hypertension.

In the past, monitoring blood pressure could only rely on a sphygmomanometer. Early mercury sphygmomanometers were difficult to use and relied entirely on people with professional medical backgrounds. Moreover, their large size was not convenient to carry. The electronic blood pressure monitors developed in the later stage have made significant progress in terms of usability and portability, but still cannot achieve real-time monitoring of blood pressure.

So, when Huawei revealed that wearable devices will have blood pressure monitoring functions, it attracted special attention from the public. If the smartwatch worn can monitor blood pressure in real time, users can use such a small and convenient device to check their physical condition at any time, and can also generate long-term data for chronic disease management. On December 23rd, at Huawei's winter press conference, Huawei finally officially launched the wrist electrocardiogram and blood pressure recorder Huawei WATCHD, and this product has also passed the Class II medical device registration of the Drug Administration, which means that Huawei WATCHD has officially become a medical device.

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According to the press conference, the Huawei WATCHD body is as light as 40.9g, lightweight and compact, and easy to carry. On the basis of being equipped with multiple exercise modes and health monitoring functions, the Huawei WATCHD smartwatch also features Hybrid blood pressure measurement technology with a micro pump and PPG. The Huawei WATCHD smartwatch can achieve single blood pressure measurement through micro pump pressurization, making blood pressure measurement possible anytime, anywhere. In addition, the watch can also achieve continuous and imperceptible blood pressure trend monitoring through PPG technology, obtaining all-weather blood pressure change trends.

Watches can also achieve medical grade precision in measuring blood pressure

Comparing the volume of commonly used electronic blood pressure monitors, it is not difficult to think that achieving the same function in a compact watch while ensuring accurate medical grade measurement data is definitely not an easy task.

Traditional electronic blood pressure monitors use a pressure device to inflate an airbag and apply pressure to blood vessels, which is then monitored by sensors and converted into readings. So how to install a pressure pump that can provide sufficient power inside the delicate watch body is the most basic problem that watches face when measuring blood pressure.

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In addition, smart watches are limited by the small strap area, and the pulse pressure perception results are easily affected by individual differences. How to enable the use of narrow airbags to sense changes in pulse pressure and obtain blood pressure measurements is another challenge in the hardware and algorithm design of blood pressure monitors.

According to Huawei's press conference, Huawei engineers have developed a miniature air pump for WATCHD, with an area approximately the size of a dime. Through micro pump measurement technology, Huawei WATCHD smartwatch can automatically and actively measure blood pressure anytime, anywhere, accurately record the user's blood pressure level at any time or 24 hours, and perform hypertension screening.

For hypertensive patients, the habit of regular measurements helps with better health management. Users can develop a 24-hour dynamic blood pressure monitoring plan through blood pressure health research. The watch can automatically initiate blood pressure measurements for users (remind users to measure every 30 minutes when not in sleep mode, and automatically measure every 45 minutes when in sleep mode), accurately record blood pressure data, and assist in screening for hidden hypertension.

In order to solve the problem of airbags, Huawei WATCHD smartwatch innovatively adopts a double-layer narrow airbag design. When the airbag is inflated, the double-layer airbag swells to make it more closely fit the arm, increasing the fit and compression effect, and more "accurately" sensing changes in pulse waves.

Continuously deepening research in the field of health

Early smart wearable devices only used sensors to monitor basic physiological indicators of the body, mainly heart rate and step count data. They were seen by consumers as a new type of "toy", and many consumers interacted on social media by comparing their daily steps. Not to mention that the initial data volume of the product was limited, the algorithm also had certain defects, and the monitoring results were not necessarily accurate. Simply monitoring was not very practical for consumers.

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So, since entering the wearable product market, Huawei has been deeply cultivating research on the health functions of smart wearable products, hoping that watches and bracelets can become people's health assistants.

In 2016, Huawei's wearable products achieved dynamic heart rate monitoring, providing the possibility for heart rate monitoring during various activities throughout the entire cycle; In 2017, sleep staging monitoring was conducted to evaluate the complete state of nighttime sleep; Monitoring running posture in 2018 can provide more accurate scientific basis for exercise guidance; In 2019, blood oxygen detection was achieved, which provided possibilities for the application in high-altitude scenarios and the detection of potential health hazards; In 2020, the wrist single channel electrocardiogram collector obtained its first medical device registration certificate; In the first half of 2021, temperature monitoring was released to achieve disease screening on a larger scale through professional health research.

Based on Huawei's continuous expansion in the health field, Huawei's wearable products are highly favored by consumers. December 6, 2021- IDC's Q3 2021 Global Wearable Device Shipment Report states that Huawei, in the wrist wearable device segment, tied with Apple for the world's top shipment in Q3 2021. It is reported that this is Huawei's top spot in the global wrist wearable device segment once again after the second quarter of 2020.

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