The Polar WearLink+ is the third party devices which is compatible with both the Nike+ SportBand and Nike+iPod Sport Kit. The gadget is able to monitor your heart rate, letting you see your heartbeats per minute or hear spoken BPM when paired with a Nike+iPod kit. The WearLink+ is compatible with Polar training computers thanks to 5kHz wireless transmission, letting it be paired simultaneously to Nike+ products, while those who prefer working out at the gym can always pair the WearLink+ with most modern equipment. The Polar WearLink+ will be released later this month in the US.