Is it better to have an arm or a wrist blood pressure monitor

The advantage of wrist sphygmomanometer is that it is small and easy to carry; the disadvantage of wrist sphygmomanometer is that the elderly and people who have high blood pressure will use it to measure inaccurately, because the blood vessels in the wrist of such people are aging; and there are requirements for the measurement method of wrist sphygmomanometer: the sphygmomanometer should be the same height as the heart when measuring. The measurement accuracy of the arm type is high, and the upper arm itself and the heart are at the same height, which can generally be measured accurately. If you are elderly or have high blood pressure, it is recommended to use the arm to measure blood pressure.