When you switch to an electric toothbrush I have read a lot of reviews and made smart in the net. For testing I then Pulsonic Slim and Pulsonic had because in the standard version. In short, the Slim is indeed nice to look at, but does not the power of the great. This impresses the excellent cleaning performance and excellent battery (Li-Ion), which exceeds the Triumph series itself! Only the battery charging might be faster (approx. 12 hours)