Generic Smart Bracelet OLED Body Activity Tracker, Black

Withstands pressures equivalent to a depth of 50 meters, making it a charm when being exposed in rain, splashing, accidental submersion, showering, surface, swimming,OLED touchscreen allows for comprehensive and rich information viewing,Raise your hand to brighten the screen without taping screen to see real-time states including sports data, time and heart rate,It can accurately monitor pulses and active and resting heart rate changes to generate a professional heart rate report