Languagesenglish romother capacity mah68 materialsilicone sim card typeno sim card slot connectivitybluetooth40 fitness wellnesssedentary reminder sleep tracker activity tracker cpunrf51822 ram256mb charging timeh1 waterproof levelipx 4 typesmart bracelet featuresdistance tracking long standby blood pressure measurement pedometers calories burned timer message control water resistant water proof information touch screen sports exercise record modelyye02 sensor