I fortunately had then to test various devices the possibility. From my perspective, however, many more uncertain than the weather.
So I ended up with runtastic. Also I have tested. But I had an appointment with a cardiologist for stress ECG. During this investigation, I was allowed to wear the chest strap Runtastic. I have to say that the values of exercise ECG and Runtastic were equal. So that worked great and was for me the most important thing.
For this reason alone, this system can be safely recommended.
However, I did not buy it here at Amazon. In stores, the system is already 20 euros cheaper.
