Languagessimplified chinese japanese english romother capacity mah80 materialtpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnessactivity tracker alarm clock sleep tracker charging timeh2 waterproof levelipx 7 typesmart bracelet featuresdistance tracking blood pressure measurement pedometers calories burned heart rate monitor app control water resistant water proof message control information touch screen sports exercise record modeltwlt2 sen