The DCS offers 1 additional cleaning mode compared to the DC9. This 5th cleaning mode is called ‘Tongue Care’ and as the name implies it is designed to help clean the surface of the tongue.

The key differences between the different DiamondClean Smart Series models are typically in the box’s contents. For example, the 9700 and 9750 models come with the most premium features, such as four premium brush heads, a bespoke travel case, and a tongue cleaner. The 9500 and 9300 models come with a selection of premium brush heads and a standard travel case, while the 9350 model comes with a limited selection of brush heads and a standard travel case.

A chic electric toothbrush that gives real-time feedback, but is heavily reliant on its mobile app

The DiamondClean 9000 offers a top-tier cleaning experience. It’s customizable with its range of modes and intensities. The design of the handle coupled with the compact brush head enhances cleaning even in hard-to-reach areas. Comparatively, it outperforms even the ExpertClean 7300, although it’s pricier. The DCS does too come with a small bottle of Philips Sonicare BreathRX spray which is used when cleaning the tongue.

Get 33% off Philips Norelco Exclusive Shaver 5000X with SkinGlide Protective Coating, Rechargeable Wet & Dry Shaver with Precision Trimmer and Storage Pouch The DiamondClean Smart comes with 4 brush heads (1 x C3 Premium Plaque Defence, 1 x G3 Premium Gum, Care, 1 x W3 Premium White & 1 x TongueCare+) in the box compared to the (1 x C3 Premium Plaque Defence) with the DiamondClean 9000.

Customer Reviews

All Sonicare DailyClean brushes are supplied with one brush head and last up to two weeks on a single charge, but only the DailyClean 3100 has a light to indicate the current battery status, which is a very useful feature. The 1100 and 1200 may be cheaper, but we think it's worth paying a little extra for the battery indicator so your brush doesn't run flat. The brush comes with the mode deactivated, but it can be turned on. Refer to our FAQ’s for details on this process. This is actually the cheapest brush in the ProtectiveClean range and the one we rate as best value for money, all things considered.

Philips Sonicare ProtectiveClean 6500 The ProtectiveClean 6500 comes with a pressure sensor, three intensity settings, and three cleaning modes, including a gum care mode. It has a long battery life of up to two weeks on a single charge and comes with a travel case for on-the-go brushing. That said, the app gives you an impressive degree of control, letting you adjust the brush’s mode (clean, white+, gum health, deep clean, or sensitive) and intensity separately. The brush’s default setting is ‘gentle’, but having tried all brushing intensities, we found ourselves favoring the ‘medium’ option in ‘clean’ mode, which left our teeth feeling smooth and allowed the brush to glide nicely. There's also a pressure sensor to warn you if you're pressing too hard with the brush, plus three brushing intensity levels and four modes.Much like Oral-B’s smart toothbrush app, the Sonicare app presents you with a simple map of your mouth, divided into areas that change color on-screen as you clean each one. The app times you, and shows when it’s time to move around to the next part. To get the best value and functionality from the brush, you need to use the app at the same time as you brush your teeth. The Sonicare DiamondClean 9000, 9300, 9500 and 9750 are Philips's top-end electric toothbrushes with Bluetooth connectivity so you can link the handle to the Philips app on your phone. That might sound like overkill, but it's actually a very handy feature if you want to improve your brushing technique, giving you guidance to help you clean your mouth more thoroughly. The DiamondClean 9400 Smart brush has five unique brushing modes and three intensity settings to provide Sonicare's most complete brushing experience ever. Get 35% off Philips Sonicare DiamondClean Smart 9700 Rechargeable Electric Power Toothbrush, Lunar Blue ( Lowest price in 30 days)

Pressure Sensor: Some Sonicare toothbrush models feature a pressure sensor that alerts you when you’re brushing too hard, helping to prevent gum damage and tooth sensitivity.Because it is BrushSync enabled it will default to a specific mode, in this instance clean as that is the most common mode people will use and where you will get optimal results. It is too the standard more on all brush handles. There is nothing stopping you from using it on any other brushing mode available on the brush handle. I am sure in time there will be a solution to this, but presently there is not. The only option is to buy another brush.