I'm still not so long joggers, but did great experiences with the Runtastic App. Since a pulse check is recommended, I wanted to buy myself a heart rate monitor. I was intrigued at this heart rate monitor the link to the app. The statistics I find very good and a supplement by the heart rate is optimal. In addition, I can now better assess the training. I have not the heart rate monitor really Anyway trained a bit too much at the beginning. Now it is better and I notice the improvements in recovery time by more moderate training at the beginning. The heart rate monitor is working properly. The data is transferred without a problem I've been using only the default settings, but that's enough for me also. I would find it now in the wake of ugly, if I had a heart rate monitor, which is not incorporated the data into the app. The clock is now one month in use. I am fully satisfied. The price is for me within the app Runtastic use ok. No bargain, but overall great value. What I do not like the front rubber part of the chest strap. I think here there are better solutions. In addition, the symbols in the display of the clock are sometimes very "rudimentary".
Conclusion: The clock has everything I need. GPS, chest strap, software works. Link to the app perfect. Detail of the clock could be improved.
