Upon delivery also 4 batteries lie, so you can get started jerking twitching with the first measurement.
According to previous measurements, I can state no criticism.
Interesting will be whether the upper arm cuff so holds even after prolonged use and works like the first measurements. So far, I have no doubt.
Update: After a few weeks of use I have to correct my previous rating. Unfortunately, the measurement of this unit is extremely prone to errors at minimal false landscaped Mannschette or sitting position. Thus, the values differ - in particular the pulse enormous!
After a bike ride I had, for example measured by an alternative device a pulse of 80, with the app my Galaxy S5 were measured 85. On this device me a pulse of 179 was displayed ....
Because of this unreliability I have to reduce my 2 star rating.
