Perhaps it is already in one of the reviews, I do not all have now read. But Braun and P & G so acts as if this is a completely new generation of toothbrushes, but should be noted that actually only the brush is an innovation. The TriZone 5000 seems to me absolutely the same as the Triumph 5000 and has only the new articles in the set. In any event, opens me no difference, neither in appearance nor in use between 5000 and TriZone the Triumph 5000 with the TriZone brush. In the "smaller" models it is expected to behave similarly. The TriZone essays are compatible with all Braun toothbrushes (except Pulsonicreihe) and provide probably always comparable results. Therefore, I have the TriZone returned within 30 days of Brown and rejoice now the TriZone brushes on the Triumph. The brushes are in fact actually very good. Angrily I find only the poor and misleading information policy of P & G.