Review on Smart watch HerzBand Elegance S5, black by Micha Kamierczak ᠌

I bought a watch for measuring blood pressure, read reviews from other users, and it seemed to me that I had found a watch that could perform this function for reasonable money. NO! They don't measure pressure. If you do not enter an adjustment, then they will show the pressure of an ideally healthy person. If the readings are corrected, then the readings will dance around this adjustment within + - 5-10 units, and these readings have nothing to do with the real data received from the device. Differences can reach up to 40 units. Otherwise, the watch has characteristics similar to all cheap watches and it makes no sense to describe their work. If you need a watch to measure pressure - DO NOT BUY!