Heart Rate & Blood Pressure Monitor: Accurately record real-time heart rate and manual blood pressure calibration, get a appropriate physical exercise plan. All day Activity Tracker: Automatically tracker your 24 hours activities like steps, distance, calorie burned, activity time, etc. Smart Sleep Monitor: Automatically track your sleep, show you the light sleep, deep sleep and how long you sleep, help you for a healthier lifestyle. Smart Notification: Gentle vibrating for incoming call, content, SMS message and Alarm reminder. Compatibility: Fully compatible with Android smartphone and iPhone which with Bluetooth 4.0/4.0+. Download APP Smart Movement from Google Play Store or APP store. If the watch can\'t pair to your phone, please check if there is any permission setting on the phone. For more instructions, please check the Application Guide we updated for this product.