It comes with a new protective cover and a plastic tool to expand the blades.
The old Philips shaving head for SensoTouch 3D is so folded in three parts (each blade separately).
The new shaving head consists of two parts: a base is in the shaver. The part with the three blades is a unit of the base (complete) can be separated. For Raus releasing the individual blades can now needs the tools.
My personal experience is that the head can better clean than the old shaving head with the three protruding parts in different directions.
In addition, he loses less stubble. With the old SensoTouch the sink was always full after shaving. That's better now - ie the stubble better stay in the shaving head.
Shave is subjectively better than the old head - if that's equal to 30% but better - well ...
Philips proposes an exchange of shaving head every 24 months. In comparison, Brown recommends 18 months. The costs for both brands in the same range: 50 to 70 EUR
I can not see any drawbacks (not the price equal to the industry average) and find it positive that his "old" SensoTouch (almost) can convert Series 9000 in this way in a.