Languagessimplified chinese english materialtpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnessexercise reminder call reminder alarm clock sleep tracker activity tracker ramother charging timeh2 waterproof levelipx 5 typesmart bracelet featuressports multifunction distance tracking long standby pedometers calories burned water resistant water proof anti lost hands free calls modell38i sensoraccelerometer light sensor supported operation system