The often criticized accuracy seems to be a star problem, after several days of using voices in my device, the measurement results with the comparative instrument agreement. The handling and the feel of the blood pressure equipment could lead to a very good rating - if only there were not this app VitaDock +. You have to be a very handy-amorous freak when you find their use well: No automatic start the app in the measurement, at almost any 2 measurement has to be transferred manually later. That's just very time consuming. The app and the web site is overloaded with advertising on the Internet you have trouble finding the recorded measurement range. A tip for the developers: people who regularly have to check their blood pressure, fall largely under the "digital divide" - ease of use is more important than childish pictures. With a reasonable app for smartphone, the device would be worth 5 points safe.