Both have the coloured rubber grip that runs down the front of the brush handle and a power button that is accented in white. Grips above and below the button are present and the rear of the brush handle is a gloss white plastic with hard plastic grips.

Put these two brushes side by side and the differences between them are much harder to tell, they look almost identical, however there are some subtle differences. This price does exclude the cost of water, toothpaste and electric to charge it. This price also works on some assumptions, but you get a rough idea. It used to come with a travel case but nowadays, it comes with Oral-B Pro-Expert deep clean toothpaste. If you would rather have a travel case instead of toothpaste as an add-on, go for . Hopefully, this gives you a good overview of where various brushes fit in in terms of price and features, but if not please leave a comment or question. What you expect in terms of battery life from a toothbrush may be different from what someone else expects.Whether the supplied head you find suitable or not will be a personal decision. The good news however is that these brushes accept a range of different brush heads that are engineered to achieve different things or may suit your preferences better. There are 6 main types of brush head, these are: A smaller and final difference between the two models is the colour of the brush handles, or more precisely the rubber grip that runs down the front of it.

Given that this icon only lights up when the mode is selected, it is hard to tell, but the Genius 9000 does offer a Tongue Cleaning mode that the Smart 6 does not. The front of the brush handle is dominated by a rubber grip that runs the length of the handle. A very pale Blue colour, some might call it baby Blue. With only a single cleaning mode on this brush the power button will turn the brush on and launch it into the ‘Daily Clean’ mode. Press it for approximately 2 seconds to turn the brush off.What this all means is that it cleans the teeth really well, particularly if you make sure you are using the correct toothbrushing technique. On the very bottom of the brush handle is a recess, into which the pin on the charging stand connects too. A feature that is not really marketed, but exists, is something called sound connectivity. You may see this more with the Pro 650 marketing than any other.