We now have the hairdryer "Satin Hair 7" and bought new: "Satin Hair 5". The "NEW" was immediately accepted as a daily hair dryers. The dimensions are similar - but the weight of the device speaks for the "Satin Hair 5" ('7' = about 710 gr / '5' = about 580 gr..)! The Trocknungsleisung does not differ markedly.