The WiFi-sensor sample rate on Samsung Galaxy SII seems irregular. In the tested setting the sample rate was set to 'often' (which should sample every minute) and CommonSense sync rate was set to 'real-time'. However, samples were send to CommonSense only just when settings were changed on the phone. If the phone is left untouched, sample frequency is irregular and rarely sends updates to CommonSense (only once every 25 minutes or so).