I know I know, boring subject sorry!
I'm wanting to buy DH an electric toothbrush for Xmas. He bought me an oral b one last year, I think it's the genius x, it has Bluetooth and can connect to an app on phone to view where needs improved brushing. To be honest, I'm not arsed about connecting my phone to my toothbrush, I also don't think DH will be that bothered about that feature either.
What I'm wanting to know is are the oral b brushes the same speed/same power or are they all different depending on the model? For example on Boots, comparing the genius x and the smart 4500?
Thank you!