Use this "Heart Rate Monitor" for about a month. Positives: The pulse reading appears to be in order and is relatively less prone to interference. Everything else that is related to the GPS, is more or less scrap. The level indicator shows completely nonsensical values. Useless! Calculations of the track are so imprecise that they are unusable (Ex .: In the holiday in Italy at Misurinasee the same route around the lake once 2.45 km, the next time was 2.72 kilometers long!) Berchnungen of speed are also make false or with a delay of 20 to 30 seconds. What shoud that? I do not know how fast I ran half a minute ago but. Evaluation on the computer thus possible, but largely meaningless. Display can not be enlarged, made very amateurish. Wobbly connection using the USB connection cable. Detection of the GPS signal takes places up to five minutes (without canopy and urban canyons). Conclusion: No buy recommendation for people who stand on evaluation of route length, speed and the like... Actually, to be used only as a heart rate monitor. The original price is a joke, the present is not far from it.
