The sonicare 4100 is incredibly efficient. It cleans as good as the previous model and it is quieter. The sonicare action cleans almost effortlessly.

Sonicare is an excellent toothbrush that will keep your teeth and mouth clean and healthy. My dentist and hygienist both recommend it. Keep doing what you are doing with your * hygiene.

It brushes my teeth way better than my manual soft-bristled and hard- bristled toothbrushes. The small headed brush gets everywhere. Most impressive is how long the toothbrush charge lasted, it went 3 weeks until needing a charge.

This one feels far heavier and more durable. The battery life so far isn't out of this world. My only concern now is that it is smaller than my previous sonicare, and it will not fit into my travel holder.

This product has been drastically changed. Very deceptive advertising. A pack coats as much or more then the entire unit does, which is insanity.