First effective outputs

Looking for a cardio that can work with my watch and my Polar FT4 runtastic app simultaneously, the Polar H7 belt seemed the top. And this is the case. No worries synchronization and simultaneous operation is awesome. I can see my live shows while Runtastic records all the GPS data and cardio simultaneously.

Additional information after a few outings with the Polar H7 level of autonomy: it is very very good. I'm not even surprised by the autonomy of the Polar H7 but by the lack of energy gluttony on my iPhone 5S. Indeed, 50% less battery on a 4h output with Runtastic in the background using GPS and Bluetooth LTE Polar H7. In the end, a lot of data on trips made route, speed, cardio, ... Very useful for a full debriefing.