If you feel you won’t use it, you may want to consider if the Pro 3 3000 is for you, you will be paying for a feature you won’t necessarily use otherwise. If you activate it often, don’t worry all that much, over time you will learn and avoid doing lasting damage to your teeth. Just imagine if you didn’t have it… This means that the LED sat behind the panel lights up. You get a bright red light that you won’t fail to notice. The Smart 4 4000 has a larger rubber grip on the front of the handle that the Pro 3 – 3000 does not have. This means that the LED sat behind the panel lights up. You get a bright red light that you won't fail to notice.

If you are going to offer smart features you need to encourage use and a smartphone stand would have been helpful in this case, to give the phone a home rather than the user having to hold it or place it on a work surface. At the same time as the LED pressure sensor illuminates, you should also notice that the speed of the brush head will decrease and the sound of the motor will change. This is nothing to worry about. It is programmed to do this, until such time as the pressure is relieved. 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?! As good as the app is, I feel this may also be one of the negatives as some will not see the point of using it or find it more hassle than it’s worth. You don’t have to if you don’t want to. 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.

Whiter teeth as of day one

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 is the reality that most of us don’t need over a weeks battery life, but there is something to be said for having the ability to take a brush away on vacation and not having to worry about charging it! As good as the app is, I feel this may also be one of the negatives as some will not see the point of using it or find it more hassle than it's worth. You don’t have to if you don’t want to. The variant with the case is primarily sold via Shaver Shop for the same price as the one without a case. The power button on the Pro 3 does provide some texture and grip for the finger. And although the 3000 is now all smooth touch plastic, it isn’t as slippy as you might expect.

Better brushing habits

If you take a look at the very bottom of the brush handle, there is a recess, into which the pin on the charging stand connects to. A charging stand is provided. Because it logs your brushing sessions, it holds you accountable a bit more as you can see when you have, or perhaps have not brushed. 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. It is important for your oral health to replace your toothbrush head every 3 months or sooner if your bristles are frayed. Using a free app available for Android and iOS you can connect the 4000 wirelessly to your smartphone.

At 30 second intervals, the brush will provide an audible warning via a slight pause in the brush motor at to tell you to change quadrant. Once the 2 minutes are up 3 brief pauses in the brush motor will be heard and felt. As a result of this change, the Smart 4 and other models now have a battery life more fitting of the current climate. The very nature of being an electronic item with moving parts does indeed make the brush susceptible to failure. However, the reliability of Oral-B products tend to be very good. In our testing, we were able to get 66 minutes of usage time from the rush, which equates to 16 days use.

When using the Bluetooth connectivity, the app will show the cleaning mode. I will explain the connectivity option in more detail shortly. Buy the Genius 9000 and although you have to power the brush on to change the cleaning mode, if you have changed the mode, it will remember it. Next time you power the brush on, it will begin in that mode. The Oral-B Smart 4000 CrossAction electric toothbrush does not do this. At times I have found these distracting, you may want to customise the settings to avoid some notifications.

Most products are given a recommended retail price (RRP) by the manufacturer, the Smart 4 4000 is no exception.The charging stand is fairly self explanatory, but I explain more about this in the battery section of the review. The main feature of the app is the on screen timer and guide that shows you where to brush and how well you have brushed.