Languagesenglish capacity mah550 materialsilicone connectivitybluetooth40 fitness wellnessbarometer altimeter sleep tracker activity tracker typesmartwatch featurescalories burned camera control message control touch screen sports distance tracking long standby pedometers modelyyex16 supported operation systemandroid ios screen typedisplay technologylcd stand by timeh400 480 packing listenglish and chinese manual production modeexternal produce