supporting Bluetooth 4.0

Bluetooth version           BLE 5.0   

Bluetooth chip      RTL8763EW

Heart rate chip      LC11S

Memory          ROM 256KB +RAM 192KB   

Flash:        128MB

Screen display      1.85 inch TFTscreen

Battery capacity     280Mah

Standby time       about 15 days

working hours       about 7 days,

Physical keys       Full touch

Motor           Flat motor

Charging interface           magnetic wire charging

Waterproof grade            IP68

Sensor           STK8321

Body material      Zinc alloy

Product size (cm)         Diameter 5.4X3.9cm, thickness 1.09cm