Each of the 3 cleaning modes work slightly differently, with differing levels of oscillations, rotations and pulsations to achieve different cleaning effects on the teeth. Sealed inside, these parts are protected from water and moisture. This means that the brush is water resistant and can be rinsed under a tap and used in a shower.

Made of plastic, the charging stand has a prong on the top, on which the Smart 4 will sit to be recharged. This aligns with the recess in the base of the Smart 4 brush handle.

I suspect over time you will learn this, but wouldn’t some icons or LED’s be helpful to show the mode. The more premium Smart 6 and Genius range offer them. The key reason that the SmartSeries 4000 has been updated to this, the Smart 4 4000 is battery life. The Pro 3 3000 has a slightly revised design. It looks a little cleaner. Unlike the 2000, it does not have a rubber grip that runs the length of the brush handle. Instead, the only grip on the front is the panel that contains the power button. Hi Julie. Sonicare brushes are quieter than Oral-B, more of a loud humming noise compared to the more mechanical sound of the Oral-B so I can understand if you find it loud, but there is how they are unfortunately.

This isn’t to say those features aren’t useful for some people. But, we have learnt that most people would rather save a bit of money, than have lots of features they may not use, making the Pro 3 3500 a perfect fit. You can learn more about this mode and how it differs but reading our article, Oral-B cleaning modes explained.But, the whitening mode is often overrated. Place these brushes side by side and it is almost impossible to tell the difference between each of them. Yes it most certainly is and can be used in the shower if you want to. Is this Electric Toothbrush Noisy? Ultimately, all of the brushes will provide a very good clean to the teeth and gums if used correctly.It does too come with a premium travel case, similar to that of the Genius X, which allows the brush to be charged whilst inside. However, like the X, this requires a separate proprietary power adapter. Bristles of the brush head should just skim the tooth surfaces. You don’t need to brush hard to clean your teeth effectively. A bigger difference and potentially useful feature for first time electric toothbrush users is the inclusion of a pressure sensor on the 2000. Go online, register the brush and you get a further 12 months absolutely free. That is 3 years of warranty.

Another small but significant thing to remember is; put the brush in your mouth before powering on and changing modes otherwise the toothpaste might go flying across the room. There are fewer gloss plastics and large expanses of rubber grips, with a much more exclusive looking design. What I find somewhat odd is that Oral-B have not included a Gum Care or Sensitive brush head with the 4000. Would that not make sense to pair with the sensitive cleaning mode?! Putting this to shame is the 9000’s travel case which is heavier, bulkier but much more premium to look at and touch. It also has the ability to charge the brush in the case, by connecting the provided charging cable. If this is not enough, a USB cable can be connected to the case and charge a device like a smartphone.Enhance your smile with the Oral-B Smart 4 - 4000N Rechargeable Electric Toothbrush in White. This ultra-smart electric toothbrush gives you professional guidance on getting the most out of your brushing experience. This ingenious tool connects seamlessly with the Oral-B app on your phone, to help you achieve better cleaning results.