YOUR HEALTH CONSULTANT: This health fitness tracker can track your physical state 24 hours, real-time Heart Rate, Blood Pressure, Blood Oxygen, Sleep quality ( like sleep duration, deep sleep time , light sleep time ), Sedentary reminder, and Sync all data to APP,, responsive 0.66inch OLED touch screen (will light up when raise your wrist), 1.5-2h fully charged time, IP67 waterproof (rains, splashes, wash hands all OK.), High-technological Gravity sensor, Nice package with charger, Safety and soft wearing band