Languageschinese english capacity mah70 materialsilicone sim card typeno sim card slot connectivitybluetooth40 fitness wellnesstimer sleep tracker activity tracker sedentary reminder call reminder find my device cpudialog 14580 water resistance depth3m waterproof levelipx 6 typesmart bracelet featurespedometers heart rate monitor water resistant water proof touch screen sports distance tracking modelm2 sensorheart rate sensor light sensor supported operation syste