The positive reviews I can not understand unfortunately !!! - The compass points in all possible directions - but not to the north. Even after mehrf. Calibration. In addition, the display is extremely erratic, so that a reasonably precise navigation seems impossible. One is better off if you erwürfelt the compass. - Altimeter !!! Well, even this brought me new findings. Was I too live in the faith, on a mountain since 1989 - I live lt Apparillo ca 60m under sea level !!! What is one to make of this?
For me this is simply part of electronic waste and should m. E. thrown on the rubbish heap of history .....