Materialtpe silicone connectionbluetooth40 talk timeh0 typesmart bracelet featurestimer information heart rate monitor wearable sleep tracker sports water resistant water proof health care long standby pedometers calories burned community share alarm clock find my device modelsr02 sensorfinger sensor heart rate sensor gyro sensor accelerometer light sensor gravity sensor supported operation systemandroid ios screen typedisplay technologyoled cpuda14580 rammb0 rom