Wrist sphygmomanometers are not accurate sphygmomanometers.
The normal standard of blood pressure or high blood pressure is based on the blood pressure of the brachial artery, the measurement site for the upper arm brachial artery blood pressure, wrist sphygmomanometer measurement is the wrist, that is, radial artery blood pressure, the different parts of the blood pressure will lead to differences in blood pressure.
There are three types of sphygmomanometers on the market today, including the old-fashioned mercury manual sphygmomanometer, the arm-type electronic sphygmomanometer, and the wrist-type electronic sphygmomanometer.
Wrist-type electronic sphygmomanometers can be used to estimate blood pressure at unusual times, and cannot be used as an accurate blood pressure measuring instrument. The best choice for accurate blood pressure measurement is a brachial artery sphygmomanometer, such as a mercury sphygmomanometer.
If you find that your blood pressure is elevated, you should consult a doctor promptly to avoid delaying your condition.