Featuresr medical grade tpu bracelet comfortable and safe to wearr 096inch oled hd high sensitive touch screen display 12864pixelr blutooth v40 working range up to 10 metersr 7 24 hours dynamic heart rate monitorr exercise modes automatically recognize and recordr multi sports management could record more than 20 modes of sportsr ip67 waterproof level good water resistantr 75mah large lithium ion battery capacity long standby timer low consumption and higher performancer com