This is a great product that is a game changer in the personal heath monitoring field. Withings Blood Pressure Monitor uses your iPhone, iPad, or iPod Touch to measure the diastolic blood pressure, systolic blood pressure, and pulse rate. The results are displayed in an easy to understand format. Provides in-depth health data and tracking. Keeping an eye on your blood pressure trend is crucial and doctors use trends to better diagnose any possible issues. Gone is the old way of writing every measurement on paper. The free Withings app displays your results in clear graphs. See your stats on your iPhone, iPad or iPod touch as well as on your private account; home or office, Mac or PC.