Three-proof Outdoor Sports Bluetooth Calling Electronic Step Heart Rate Watch

Product information:
Color: black, silver gray
Battery capacity: 270mAh
Operation mode: touch button
Screen Type: IPS
Product Size: length 54.8 * width 43.5 * thickness 14.8mm
Battery life: 7-14 days
Functions: social entertainment, Bluetooth calling, smart reminder, remote control selfie, sleep monitoring, blood oxygen detection