I have one of the Sonicare toothbrushes. They're pricey but quite good. My dentist even asked me what toothbrush I had because my teeth were so clean. You can c

I have one of the Sonicare toothbrushes. They're pricey but quite good. My dentist even asked me what toothbrush I had because my teeth were so clean. You can charge it wirelessly through a shaver socket, or with USB in the case. I can only get replacement heads on Amazon though, I've never seen them in any UK shop.