Languagesenglish capacity mah80 materialabs tpu silicone connectionbluetooth30 bluetooth40 typesmart bracelet featuressleep tracker creative water resistant water proof wearable sports health care multifunction distance tracking long standby pedometers find my device heart rate monitor sensorgravity sensor finger sensor heart rate sensor proximity sensor supported operation systemiphone android ios screen typedisplay technologyoled stand by timeh120 150 production m