Not accurate.
Huawei smartwatch measurement of blood pressure and heart rate is inaccurate. Most current smartwatches use reflected light to monitor arterial pulsations in the wrist to measure blood pressure and heart rate.
Wearing the bracelet correctly with no light leakage and ensuring smooth blood flow at the wearer's place under relatively stable movement such as sitting still and sleeping, you can get a value closer to the accurate value, but it is not an accurate value.
Is the blood pressure and heart rate bracelet reliable?
Smart bracelet smart watch blood pressure heart rate reliable?
The measurement of blood pressure and heart rate should be discussed separately.
First of all, let's talk about the principle of smart bracelet heart rate measurement
A photoelectric volumetric pulse wave tracing method (referred to as PPG)
This is the method of measuring the heart rate adopted by the vast majority of smart bracelets on the market today. It simply means that the sensor will emit a beam of light onto the skin and then measure it (reflected or transmitted light).
The blood within the skin, the volume is pulsating under the action of the heart. When the heart is contracting the peripheral blood volume is the most light absorption is also the largest and the light intensity detected is the smallest. When the heart is in diastole, the opposite is true, the detected light intensity is the largest, so that the light intensity received by the optical receiver is then pulsating changes, so that the pulse is measured.
Since red blood cells absorb green light the most, most of these sensors emit green light.
Two ECG Signal Measurement
This method of detection is similar to the ECG in that data on cardiac activity can be obtained by measuring the change in potential difference between two points on the body surface. Although it does not require the connection of many electrodes as in the case of the ECG, two electrodes are sufficient for measuring the heart rate.
In comparison, the second method is more accurate than the first, but if the electrodes don't fit snugly against the skin, or if they are subject to greater interference such as muscle tremors, then it may not be as good as the former method.
Of course, the first type of bracelet can also be misjudged, such as the Internet has broken the news of "smart bracelet on the toilet paper can also measure the heart rate. This is determined by its detection principle.
Overall, according to my personal experience, the heart rate data measured by common smart bracelets can still be trusted, and even if there are a few errors per minute, it does not affect the judgment of the condition.
Again, the measurement of blood pressure
Smart bracelets and smart watches to measure blood pressure is relatively much less products, because this detection difficulty and detection costs will be greatly increased.
Regardless of their measurement principle, I personally do not trust their measurement results. Because of our work, we often use electronic blood pressure monitors. I have found that even dedicated wrist electronic blood pressure monitors often produce unreliable results because there are so many factors that interfere with it.
Even if the blood pressure at the wrist can be measured accurately, it often doesn't necessarily reflect the true blood pressure within the patient's aorta. Because it's so far from the aorta, variations in the blood vessels, narrowed arteries, and blockages can affect the measurement, especially in the elderly.
Summary:
Smart bracelets are basically reliable for counting your pulse to get your heart rate. But if there's an arrhythmia, such as atrial fibrillation, that's not necessarily the case.
Taking a blood pressure reading is just for fun. If you want to know your exact blood pressure, it's best to get a cuff-type electronic blood pressure monitor that measures the upper arm.
Welcome to follow Dr. Cheng's 100th birthday, and learn more practical medical knowledge every day.
Welcome to leave a message to discuss.
Professional doctors to help you do answer
For people with high blood pressure, monitoring blood pressure is one of the most basic treatment requirements, for the need to screen whether the blood pressure is elevated in the population, regular measurement of blood pressure is the only way to measure blood pressure, and the accuracy of blood pressure measurement is very important, because high blood pressure is a lifelong disease, once recognized that the need for lifelong treatment, and the treatment should be based on the control of blood pressure at any time to adjust the treatment program. The treatment program should be adjusted according to the control of blood pressure, so it is crucial to have a device that can accurately detect the blood pressure.
The traditional blood pressure testing device is the mercury sphygmomanometer, in recent years the electronic sphygmomanometer is gradually popularized, and can be divided into the arm type, wrist type, the bracelet type is also more and more common, so which one in the accuracy of the more guaranteed? First, let's look at the principle of measuring blood pressure.
Simply put, blood pressure is divided into systolic (high pressure) and diastolic (low pressure), high pressure refers to the contraction of the heart to pump blood, blood flow through the blood vessels when the pressure generated by the blood vessel wall, when the heart diastolic blood flow back, blood vessels in the amount of blood is reduced, at this time, the pressure generated by the wall of the blood vessel is low pressure.
In order to better find the blood flow on the blood vessels subjected to high pressure and low pressure, you need to give the blood vessels a certain amount of pressure, and then slowly release the pressure, so as to find out in the removal of external forces, the blood flow on the blood vessels to produce the value of the pressure, the mercury sphygmomanometer is through the sound method of judging, while the electronic sphygmomanometer is the blood vessels generated by the pulse wave is converted into a blood pressure readings.
Therefore, the measurement of blood pressure first need to give the blood vessels a certain amount of external force, and secondly to find the body on the location of superficial and easy to apply external force to the blood vessels to operate, and the human body of the upper arm blood vessels are very consistent with such conditions, so the clinical will be the location of the measurement of blood pressure in the upper arm, and the measurement of need to tie the cuff to give a certain amount of external pressure.
Obviously, mercury sphygmomanometers and upper arm cuff sphygmomanometers are in line with these two conditions, which means that in the case of correct operation, the measured blood pressure is real and accurate, and clinical practice has also shown that: the use of qualified upper arm cuff sphygmomanometers and traditional mercury sphygmomanometers to measure the results of the basically the same, and the difference is generally not more than 5mmHg.
Wrist sphygmomanometers and bracelets are obviously not good enough to measure blood pressure.
And wrist sphygmomanometers and bracelets obviously can't fulfill these two conditions well, so they can't be used as tools for clinical testing of blood pressure, and ordinary people or hypertensive patients who measure their own blood pressure at home should choose qualified upper arm cuff-type electronic sphygmomanometers as appropriate.
I hope this answer can help you, welcome to click on the attention and leave a message, together to learn and exchange more health knowledge
The heart rate measured by the bracelet is relatively accurate for people with normal sinus rhythm, but the accuracy is poor for people with atrial fibrillation and premature beats. Because cardiac output drops in atrial fibrillation and premature beats, the pulse wave traveling to the radial artery is too weak to be fully detected by the bracelet.
The accuracy of the bracelet's blood pressure measurements is poor, being relatively more accurate for men and people with strong radial artery pulses, and less accurate for women and people with weak radial artery pulses. Of course, the bracelet's ability to provide a 24-hour profile of a person's blood pressure fluctuations is of some interest.
Also, the accuracy of the bracelet is of course related to the brand, and technologically advanced manufacturers produce products that are somewhat more accurate.
Blood pressure and heart rate are two of the most important vital signs in the human body, and their normalcy or lack of normalization can reflect whether a person is healthy or not.
Modern technological development, a variety of smart devices can monitor blood pressure and heart rate, the most common is the bracelet, the bracelet is reliable?
Smart bracelets can monitor heart rate, but in terms of measuring blood pressure, there may be errors in the results, not recommended.
Accuracy, most of the bracelet used by the photoelectric transmission measurement method is actually not very accurate, it is easy to be disturbed by the external environment, for individuals, the importance of the bracelet heart rate monitoring in fact, can be continuous monitoring, even if the absolute value of the inaccurate, but the relative change trend can be analyzed or can be found some value.
In terms of blood pressure measurement, wrist smart bracelets and watches are not recommended. By the same token, the use of wrist-type electronic sphygmomanometers is not recommended for measuring blood pressure, and if you measure blood pressure, you can use an upper arm-type electronic sphygmomanometer, which is currently recommended by national and international hypertension guidelines for measuring blood pressure.
In life, individuals are more recommended to use branded electronic sphygmomanometers to measure blood pressure, when measuring blood pressure, there must be an indicator of heart rate, so that you can monitor blood pressure and heart rate at the same time, hypertension adjustment of medication has a great deal of help, and at the same time, you can wear a smart bracelet for the measurement of heart rate, energy consumption, calorie and other aspects of the indicators.
In short, blood pressure and heart rate are not set in stone, it is a range, as long as within an acceptable range are no problem.
Measuring heart rate, which has become very common and is reasonably accurate, is primarily based on the ups and downs of peripheral blood oxygen levels. This fluctuation can be converted into an electrical signal that can be detected, and it has long been portable in clinical practice, with heart rate detectors on treadmills, so it shouldn't be too difficult.
But blood pressure is not something I've heard of any smart bracelet being able to measure. Nowadays, in vitro blood pressure measurement are still to detect the pulsation of the band arteries. To measure the arterial pulsation, you have to first pressurize to more than the highest arterial pressure and then gradually reduce, when the pressure drops to just when the arterial pulsation can be detected is the systolic blood pressure, that is, the so-called high pressure, when the arterial pulsation just can not be detected is the diastolic blood pressure, that is, the so-called low pressure. This cannot be converted into a signal that can be directly detected by electrodes, but only by mechanical pressure. Therefore, as long as the bracelet can not be contracted are not possible to detect changes in blood pressure. To add a contraction function to the bracelet, you need a large capacity battery, and the bracelet is so large that no one will buy it.
Reliability has a lot to do with the brand of the bracelet. Generally speaking, the heart rate measured by the bracelet is more accurate, but the blood pressure measurement tends to have a larger error.
Therefore, the blood pressure measured by the bracelet cannot be used as a diagnostic basis, much less as a basis for adjusting antihypertensive drugs. The diagnosis of hypertension must be based on the results of arm sphygmomanometer measurements. Because blood pressure levels are different in different parts of the body. The closer the blood vessels are to the heart, the higher the blood pressure level; the further away from the heart the blood pressure level of small blood vessels is lower. The arm sphygmomanometers used in hospitals measure the pressure in the blood vessels of the upper arm, while the bracelet measures the pressure in the smaller blood vessels of the wrist, so its value is low.
Nevertheless, measuring blood pressure with a bracelet is not useless or worthless. The bracelet blood pressure can be used for dynamic monitoring of blood pressure, for example, usually the blood pressure is 130mmHg, but these days the blood pressure is often in the 150mmHg or more, then you should pay attention to it, you should go to the hospital for further testing, to determine whether the blood pressure is really elevated.
Measuring blood pressure with a bracelet and heart rate can only be used as a reference and can be observed dynamically, if there is any abnormality, it is recommended to go to the hospital for a detailed examination and make a final diagnosis.
Personal use for a period of time, in general it is still very convenient, the specific data have differences, but the trend can bring a lot of convenience to the individual's life, the management of the body.
Can only be used as a reference, especially blood pressure, it is best to compare the hospital after the measurement, know the difference, while the heart rate can be completely by yourself by pulse 10 seconds times 6 bit minute pulse number, of course, the bracelet can also be used as a watch, but because of the connection with the phone, so it is more accurate than the general ordinary table.
Not reliable. It's not medically certified.
Specialized in consulting experts.
You can benchmark the iwatch, what Apple can do, everyone can do. What Apple can't do is mostly flimsy.
In my opinion, the Apple Watch is one of the best smartwatches for measuring heart rate, with the following advantages:
1. It uses an optoelectronic sensor that can measure heart rate and other health data, such as sleep, exercise, etc., with high precision and a frequency of up to tens of measurements per second.
2. Apple Watch's system is very sound and supports a variety of exercise modes, users can choose the appropriate exercise mode according to different exercise needs, and automatically record the corresponding exercise data, including heart rate, calories, steps and so on. In addition, Apple Watch also has a sports guide function to help users exercise more accurately and get better health results.
3. The wearable design of Apple Watch is very fashionable and looks good with all kinds of clothes, and it adopts smart strap technology, which allows you to change the strap according to your personal preferences and needs, making the watch more personalized and fashionable.
As far as I know, in addition, Garmin and Fitbit also have some good smartwatches that can also measure heart rate and other health data, but compared to the Apple Watch, their systems are relatively simple, don't support as many sports modes, and can't match the Apple Watch's sense of fashion in terms of design.
Is it normal for a Xiaomi watch to measure heart rate for 20 seconds
Not normal. Xiaomi smartwatch measured heart rate between 60-180 is normal. 60 is your resting minimum heart rate, some professional athletes may be lower to about 40. Maximum heart rate is generally 220 minus your age, if you are 40 years old is 220-40=180, 180 is your maximum heart rate. This calculates your heart rate range to be between 60-180, and if your heart rate is still high 10 minutes after you stop exercising then you need to keep an eye on your health.
Oppo smartwatch running heart rate measurement accuracy
Hello, OPPO watch in running heart rate test will be in accordance with the unified standard for measurement, the general situation is more accurate, you can visit the official website of the OPPO to learn more about the details, thank you for your support of OPPO
.