?Heart Rate Monitor & Sleep Monitor?---Auto Sleep Tracking: Automatically tracks your sleep, just bind the device with your phone, it will tell you the light/deep/awake sleep of the former day. 24 real-time continuous heart rate monitor to help you adjust your workout and keep health; Auto sleep tracking to records your sleep duration and quality, effectively sleep quality analysis can give you good suggestions to adjust yourself.
?Smart Design?---0.96" bright LCD color screen with level 1 to 5 screen brightness control. Smart Design Waterproof design allows wearing when swimming, showering and up to 3 meters diving and won't damage. It won't record data when swimming.
?Daily Fitness Tracking?---Accurately records your daily activity, tracks steps, walking distance, calories burned and more; Tracks workouts with 14 sport modes & use your smartphone GPS to see real-time route and pace.
?Call and Message Notifications?---View caller ID, emails, text messages and social network notifications right on your wrist. Hang up calls using the tracker.
?Broad Compatibility?--- iOS 7.1 & above/Android 4.4 & above, Bluetooth 4.0 & above (smart phone only, not for PC, iPad or tablet).