There are still problems with the widespread use of wrist sphygmomanometers and their widespread use is not advocated at this time. Qualified benchtop mercury sphygmomanometers and electronic sphygmomanometers are recommended. There are benchtop mercury sphygmomanometers, pneumatic sphygmomanometers, and automatic or semi-automatic electronic sphygmomanometers for measuring blood pressure. Tabletop mercury sphygmomanometers and electronic sphygmomanometers are commonly used today. Wrist electronic sphygmomanometers measure wrist blood pressure with better accuracy than finger sphygmomanometers, and studies suggest that their accuracy is still good. Wrist sphygmomanometers may be suitable for blood pressure measurement in obese, elderly, or cold areas, but there are problems with their widespread use. It is not currently advocated for widespread use mainly because of the difficulty for the average user to keep the cuff of the wrist sphygmomanometer at the same level as the heart. Clinic blood pressure is still measured with a table-top mercury sphygmomanometer, the condition of the available upper arm medical electronic sphygmomanometer gradually replace the table-top mercury sphygmomanometer. Table-top mercury sphygmomanometer dynamic sphygmomanometer and electronic sphygmomanometer should be regularly calibrated, generally every six months. Table-top mercury sphygmomanometer requires auscultation techniques, for the elderly, people with limited physical activity or low literacy users grasp the use of inconvenient, and easy to measure and record deviations. Electronic sphygmomanometers are easy to use, simple to operate, and are increasingly valued.