SmartWatch with music remote suggestions?

I am waiting to see if any good smartwatches releases at IFA 2016, in september. However, in the meantime i would love a cheap temporary smartwatch that is compatible with my Sony Xperia Z5 compact and has the ability til remote control the music on my phone. This is basicly the only function that i need. I wish to control pause/play, next/previous track and volume control. Note: NO POINT for me with a smartwatch that plays the music ON the phone. It has to control the music ON THE PHONE....

SmartWatch with music remote suggestions?

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