Works perfectly Keep your health on track with this wireless blood pressure monitor by Withings. It allows you to not only measure your blood pressure, but your heart rate as well. The medically approved, app-enabled design uses Bluetooth and internet connectivity to pair with your iOS or Android smartphone for an easy-to-operate system you can use anywhere. Simple to use: App launches automatically and gives instant colour-coded results Accurate readings: High accuracy blood pressure readings ideal for monitoring blood pressure at home Stay in sync: Bluetooth compatibility ensures data from every measurement appears in the Health Mate app Health care connected: Easily email a full report to your health care provider or doctor Colour-coded results: Receive colour-coded feedback and personalized reminders for a simple way to track your health Your history, on hand: Health Mate app stores all your BP readings, syncs with the Health Mate app, and makes an easy-to-understand chart Certified: Certified for Canada, FDA cleared, and compliant with European medical device standards Adjustable fit: Fits arm circumference from 22cm to 42cm