Works perfectly with Nexus 4 Android 4.3 and runtastic

Anticipation, it works with a current Android 4.3 on a Nexus 4 Fitted using apps like Runtastic 4.1 easily and without error. One should put the belt first and then launch the app, it has always worked for me without hesitation. As a belt I have the runtastic own bluetooth smart selected and then found the Polar H7 and successfully connected.

Before you buy, and then writes a bad review, you should find out whether either your own device Bluetooth Smart is at all capable of the manufacturer. With Android versions prior to 4.3 has installed or whether an update / Rome exists with Android 4.3. Normally Blueetooth Smart goes without use of smartphone manufacturers with Android 4.3 NOT!