The Sony SmartBand SWR12 recently passed through the FCC. Judging by the schematic in the documents the SmartBand will look very similar to the current model (SWR10). We understand that the main difference between models is that the newer SWR12 version will integrate a heart rate sensor. The sensor will periodically analyse variance and heart rate to check on your activity and stress levels. Sony could be prepping the latest SmartBand SWR12 for a MWC launch, but we’ll keep you posted.