Languagessimplified chinese english romother capacity mah60 materialmetal tpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnesssleep tracker cpunrf51822 ramother charging timeh1 typesmart bracelet featuresinformation sports distance tracking pedometers calories burned heart rate monitor message control modelm3s sensorheart rate sensor supported operation systemandroid ios screen typedisplay technologyoled stand by timeh150 200 pack