Smart bracelet color screen Bluetooth exercise oxygen sleep gift bracelet Material: Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Package weight: 60g Swimproof IP68 Index Of The Helps You Care While Swimming, Diving Or Taking A Shower. It Needs To Be Taken Off Before A Hot Bath. Sleep Tracking Automatically Tracks How Well You Sleep At Night, Get The Data About Your Sleep Trends Through The Night In The App. The Silent Vibration Alarm Clock Can Wake You Up Without Disturbing Others. Intelligent Reminder Vibrates To Notify You Of Incoming Calls And Messages Help You Stay Connected . Never Miss Any Important Message. Smart Function Track Your Daily Steps, Distance And Calories, Helping You Do Exercise Scientifically And Reach Your Goals, Continuous, Automatic, Wrist-based Heart Rate Tracking, Get To Know Your Heart Rate At Any Time And Get A Better Understanding Of Your Fitness Level Charging Anywhere Full Charge Requires About 2 Hour And One Single Charge Gives You Up To 13 Days Of Working Time Above.