Languagesspanish german french english capacity mah80 materialsilicone abs connectionbluetooth40 typesmart bracelet featuressports multifunction long standby pedometers alarm clock heart rate monitor sleep tracker water resistant water proof information touch screen wearable modelgb035 supported operation systemandroid ios screen typedisplay technologyoled stand by timeh100 120 listing date04112017 production modeself produce