The great advantage of this new version is that it is far less bulky and better in the hand. From the handling ago the Pulsonic Slim reminiscent of a manual toothbrush, but the cleaning result is absolutely top. As normal for a sonic toothbrush, the Oral-B Pulsonic has like a conventional toothbrush a brush head. I can not quite understand that people (other review) have a problem with the brush head, as this would mean that they can not use normal toothbrush. So for all that can use a regular manual brush, the brush head is not too large.
I opted for the Slim model because I do not really need all the bells and whistles (many purification steps). For a sonic toothbrush, the price is bearable.