Beautiful very comfortable belt to wear. Fixing by pressure on the sensor is very convenient. The apparent quality is above average. A little long association for the first time with my HTC One mini in Android 4.3. With the runtastic app, it took me several attempts, but now the coupling is very fast. I upgraded to version Android 4.4.2, still without problem. The measure seems to me reliable. The only worries to date after 10-15 outputs is that the anti slip in one of the electrodes is off. A small flat so.
