Languagesenglish romother capacity mah70 materialsilicone sim card typeno sim card slot connectivitybluetooth40 fitness wellnesscall reminder sleep tracker activity tracker dual time zones pulsometer sedentary reminder cpunrf51822 ramother charging timeh1 waterproof levelipx 7 typesmart bracelet featuresmessage control heart rate monitor information water resistant water proof touch screen sports exercise record distance tracking long standby blood pressure measu