I will measure my regular blood pressure hypertension suffer. So far I had only one device for the wrist, so I thought, that's enough. But far from it, the measurement results were so different that I've decided to look for a reliable device out. Then I came across this unit of Panasonic, also because it has received from the German Heart Foundation is a very good. Since then I have good measurement results, which are very consistent, even if one in quick succession performs comparative measurements. Strong buy recommendation!