Would Not by again
I have a sonic diamond clean smart and these heads do not fit tightly on the handle so they make a lot of noise. I had to forcibly shovel on the head several times to make the noise not so loud. Also the plastic head has waves on the back and riding along the stem and I find that uncomfortable in my mouth. . Plus I think the Bristol area is slightly smaller than other brands . Overall super disappointed. And updated after just two weeks the toothbrush head is falling apart. Definitely an inferior product.
Rating: 2 stars