Philips Sonicare DiamondClean Classic | Smart | 9300 | 9500 | 9700 | 9750 Review

By | May 29, 2024

philips sonicare diamondclean smart 9750 lunar blue

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Not long ago, Philips released its additions to the most advanced electric toothbrush model, the Philips Sonicare DiamondClean model line.

Currently, you can find two types of Philips Sonicare DiamondClean toothbrushes – Philips Sonicare DiamondClean Classic and 3 different models of Philips Sonicare DiamondClean Smart – 9300, 9500, and 9700 (and also its variation 9750).

In my review, I will explain the common features of all models and their differences so that you can choose the best DiamondClean toothbrush for your needs and budget.

If you are in a hurry, please check out the quick comparison of Philips Sonicare DiamondClean rechargeable electric toothbrush models.

PriceModes & IntensitiesBluetooth & BrushSyncIncluded Brush Heads
DiamondClean ClassicLowest5 / 1 No1
DiamondClean Smart 9300Higher4 / 3 Yes3
DiamondClean Smart 9500Even Higher5 / 3 Yes4
DiamondClean Smart 9700Highest5 / 3 Yes8


Now here is a more thorough overview of DiamondClean electric toothbrush models to give you more insight into what you are getting with each model.

Please scroll down if you want to learn more about Philips Sonicare technologies.

Philips Sonicare DiamondClean Classic

Philips Sonicare Diamond Clean Classic Rechargeable Electric Toothbrush, Black HX9351/57Philips Sonicare DiamondClean ClassicCheck Price

The Philips Sonicare DiamondClean Classic rechargeable electric toothbrush is the most basic and cheapest DiamondClean toothbrush.

It features 5 brushing modes (Clean, White, Sensitive, Gum Care, and Deep Clean) without the intensity change option.

The Classic DiamondClean does not have connectivity features like Bluetooth or BrushSync. There is also no pressure sensor. This model comes with one brush head, so you should get a pack of replacement heads when you buy the brush.

Available colors and corresponding model numbers:

  • White HX9331/43
  • Black HX9351/57
  • Pink HX9361/69

Philips Sonicare DiamondClean Smart 9300

Philips Sonicare DiamondClean Smart 9300 Rechargeable Electric Toothbrush, Pink HX9903/21Philips Sonicare DiamondClean Smart 9300Check Price

The DiamonClean Smart 9300 is the most affordable DiamondClean Smart toothbrush.

You can already tell from the model name that this toothbrush is Smart, meaning it has Bluetooth and BrushSync technologies. It also features a pressure sensor.

It features 4 brushing modes (Clean, White+, Deep Clean+, and Gum Health ), and you can choose one of 3 intensity options for each mode.

This model comes with a set of 3 BrushSync-compatible replacement brush heads – C3 Premium Plaque Control, W3 Premium White, and G3 Premium Gum Care.

Available colors and corresponding model numbers:

  • White HX9903/01
  • Black HX9903/11
  • Pink HX9903/21
  • Grey HX9903/41
  • Rose Gold HX9903/61

In the UK, this model is known as Philips Sonicare DiamondClean 9000 2020 Edition. It comes with only one C3 brush head, but the included case is the Premium USB charging case.

Philips Sonicare DiamondClean Smart 9500

Philips Sonicare DiamondClean Smart 9500 Rechargeable Electric Toothbrush, Grey HX9924/41Philips Sonicare DiamondClean Smart 9500Check Price

The DiamondClean Smart 9500 is similar to the Smart 9300 and comes with an additional 5th brushing mode (Tongue Care) and is bundled with 4 brush heads.

The five brushing modes are Clean, White+, Deep Clean+, Gum Health, and Tongue Care, with a choice of 3 intensity options for each mode.

This model comes with a set of 4 BrushSync-compatible brush heads – C3 Premium Plaque Control, W3 Premium White, G3 Premium Gum Care, and a brush head dedicated to tongue cleaning – TongueCare+ tongue brush.

Available colors and corresponding model numbers:

  • White HX9924/01
  • Black HX9924/11
  • Pink HX9924/21
  • Grey HX9924/41
  • Rose Gold HX9924/61

Philips Sonicare DiamondClean Smart 9700

Philips Sonicare DiamondClean Smart 9700 Rechargeable Electric Toothbrush, Rose Gold HX9957/61Philips Sonicare DiamondClean Smart 9700 Rechargeable Electric Toothbrush, Rose Gold HX9957/61Check Price

This is the most expensive model of the line, the DiamondClean Smart 9700!

Actually, you are only getting a few extras compared to the Smart 9500 model. The extras are the unique Lunar Blue color and the double amount of bundled brush heads.

Available colors and corresponding model numbers:

  • Rose Gold HX9957/61
  • Lunar Blue HX9957/51

Philips Sonicare DiamondClean Smart 9750

Philips Sonicare DiamondClean Smart 9750Philips Sonicare DiamondClean Smart 9750Check Price

Maybe you don’t need 8 brush heads but instead would appreciate the handy brush head storage solution. Then you can choose the DiamondClean 9750 model.

It is the same Smart 9500/9700 model, but you will get one set of 4 brush heads and the brush head holder. This brush is also available in Lunar Blue or Rose Gold.

Available colors and corresponding model numbers:

  • Rose Gold HX9924/65
  • Lunar Blue HX9954/56


Philips DiamondClean features the most advanced teeth and gum cleaning technologies available. Scientists have proven that this brush will help you to get rid of more than 99% of plaque from hard-to-reach places in your mouth. Mostly it is due to the new angled design of the DiamondClean toothbrush head that allows better get to the back teeth, which usually suffer from inadequate cleaning.

Studies also show that this brush will improve the condition of your gums after using it only for a couple of weeks and make your teeth a couple of shades whiter at the same time. So it will not only clean the teeth more thoroughly than other oral care products but also take care of your gums and even reduce gum sensitivity.

Advanced Sonic Technology

The unique Philips Sonicare technology activates powerful sonic vibrations. They create plaque and germ-fighting bubbles on your toothbrush and help maneuver the toothbrush well between the depths of your teeth and by the gum line. 62,000 delicate but effective bristles’ movement delivers the same benefits in two minutes that you’d receive from a month’s worth of manual brushing.

Philips Sonicare Diamond Clean toothbrush features sonic technology, which is unique to the brand. The said technology can produce great teeth cleaning action, providing users with results fast.

It works by gently whipping the toothpaste and saliva into an oxygen-rich foamy liquid and driving it between and behind the teeth and on the gum line where bacteria usually accumulate.

Philips Sonicare’s sonic technology is gentler than a manual toothbrush making it helpful in keeping your teeth healthier over an extended period.


Sonicare DiamondClean Classic isn’t equipped with any sensors, but the Smart Models of the DiamondClean range all do.

Sonicare DiamondClean Smart toothbrushes feature three useful sensors, each designed to collaborate and give the best cleaning experience.

Pressure Sensor

The DiamondClean Smart will detect if too much pressure is being applied and warn you by an illuminated light ring on the end of the handle and a mild vibration. This reminds you to take it easy with the pressure and let the brush head perform its job.

An impressive 7 out of 10 people thought this helped them brush better.

Related Reading: Philips Sonicare ExpertClean 7300 vs 7500 Review

Location Sensor

Never miss a spot with the in-built location sensor in DiamondClean Smart models. The Sonicare App (we’ll get into that later), it tracks and improves coverage for a thorough cleanse.

Scrubbing Sensor

The scrubbing sensor in the handle gently reminds you when you’re being a bit too harsh. This allows you to improve your brushing technique and get an enhanced clean without overworking the enamel.


All DiamondClean models have the two regular timer features – Smartimer and Quadpacer – you might be familiar with from older Philips toothbrushes that greatly improve the brushing experience.

Smartimer is a simple 2-minute timer that ensures you are brushing for 2 minutes, as dentists suggest.

Quadpacer beeps every 30 seconds to inform you that you should move to the next quadrant of your mouth. This way, you will spend equal time on all parts of your mouth. QuadPacer tells you when you’ve spent the right amount of time on a particular section of the mouth (this divides the mouth into 4 segments), while SmarTimer signals when the designated time is up.

I have noticed people mentioning that DiamondClean Smartimer works a bit differently from previous Philips models.

Smartimer used to beep when 2 two minutes were up, and the brush kept working as long as you switched it off. The DiamondClean version of Smartimer switches the brush off when the brushing time is up. If you want to do more brushing, you should start another cycle.

black philips sonicare diamondclean smart toothbrush in charging glass on bathroom counter

Brushing Modes

DiamondClean Classic

Sonicare DiamondClean Classic features five different modes – Clean mode, Gum Care, Deep Clean, Sensitive, and White for five specific purposes, meaning comprehensive dental care. However, there is no option to change the intensity level on this one, so it brings nothing special for the ones with sensitive teeth and gums.

As stated above, the five modes take care of your everyday dental needs. For starters, Clean mode is your go-to for exceptional daily cleaning. The high-quality, densely-packed bristles are formulated to remove more than 7x plaque than your regular, manual toothbrush. Switch to Gum Care when you need to give some additional gentle care to the gums.

And when you really need to get in between those nooks and crannies for a thorough clean every now and then, turn on Deep Clean mode. The Sensitive mode is for softer, almost more careful cleaning for delicate mouths. Last but not least, the White mode excels in removing the surface layer of stains. After all, who doesn’t love a nice set of pearly whites?

What makes the Philips Sonicare Diamond Clean Classic stand out (and lines it up among the most spectacular models) is its five different brush modes designed for different purposes with dental professionals’ advice in mind.

  • Clean mode is the standard mode that it uses for overall mouth cleaning
  • The White mode is, as its name suggests, used to remove stains on the teeth’ surface and make it whiter
  • Deep Clean mode can brighten the teeth to reveal their natural brilliance. In early DiamondClean models, this mode was called Polish mode (related to polishing, not Poland).
  • Gum Care mode is for people who have gum-related problems as it is gently stimulating and massages the gum line
  • If you have sensitive teeth, the Sensitive mode has been designed for you as it uses an extra-gentle method of brushing.

Now there is a tricky part. What I said about the modes applies to the DiamondClean Classic model.

black philips sonicare diamondclean smart cleaning modes

DiamondClean Smart

DiamondClean Smart toothbrushes feature 4 or 5 slightly different modes with a twist. The twist is the introduction of a selection of intensities for each mode.

There are three intensity levels you could choose from depending on your overall mouth sensitivity – Low, Medium, and High.

All the modes but one are similar to the ones of the Classic model with the same name.

The TongueCare+ is unique to this one and introduces a technology that gently removes odor-causing bacteria from the tongue’s pores. The singular 240 specially crafted MicroBristles ease between the crevices and ridges of the tongue to dispel debris and germs that cause bad breath. It promises to remove up to 10x more plaque, keep gums 7x healthier, and reduce teeth staining by 100%.

DiamondClean Smart 9300 modes (with 3 intensities for each mode):

  • Clean
  • White+
  • Deep Clean+
  • Gum Health

DiamondClean Smart 9500 and 9700 feature the same 4 modes plus an additional Tongue Care mode (with 3 intensities for each mode):

  • Clean
  • White+
  • Deep Clean+
  • Gum Health
  • Tongue Care

Philips Sonicare DiamondClean Smart brushing modes explained


Sonicare DiamondClean Smart models let you connect to your smartphones and tablets through wireless Bluetooth technology.

It’s compatible with a wide range of Android phones, Bluetooth 4.0 enable tablets, 3rd Gen or higher iPad, and iPhone 4S or higher that features iOS7 and above. You need to connect this so that Sonicare can send all the data to the Sonicare App.

Sonicare DiamondClean Classic offers neither this feature nor Sonicare App.

Sonicare App

The Sonicare App is exclusive to the Sonicare DiamondClean Smart models.

The Sonicare App was created to make the best brusher out of you. It starts off by highlighting any trouble zones in a 3D mouth map and reminds us to pay more attention to those areas. The app notifies you when you’ve done good cleaning jobs and guides you on being a more mindful brusher.

The TouchUp feature will bring out any spots you’ve missed. It stores all your brushing data so you can keep track of how well you’ve been treating your mouth, teeth, and gums. You could also set oral health goals. The app will direct you to achieve those with personalized recommendations.

Brush Head Recognition and Mode Pairing

The BrushSync is another feature exclusive to the Smart DiamondClean models.

If you connect BrushSync compatible brush head, the toothbrush automatically chooses the optimal intensity and mode for every brush head.

There are 4 pairing options:

  • C2 and C3 Plaque Control head pairs with Clean mode
  • G2 and G3 Gum Care brush head pairs with Gum Health mode
  • W2 and W3 Whitening brush head pairs with White+ mode
  • TongueCare+ tongue brush pairs with TongueCare mode (applicable to 9500 and 9700 models only)

Brush Head Replacement Reminder

The Brush Head Replacement Reminder is another exclusive and valuable feature of the Smart series.

This feature alerts you with the reminder icon that lights up when you must change the brush head. It expertly tracks how long the brush head has been used, so you don’t have to work with a worn-out head.

This feature helps keep a close focus on the life of the brush heads.

Battery and Charging

Long Life Battery

The DiamondClean toothbrushes boast some solid battery life.

The Classic model will operate for up to 3 whole weeks per charge, while the Smart models will take about 14 days to go from full to empty. The latter doesn’t seem that much, but it’s notable for one with some many in-built specs and functions.

The Philips Sonicare Diamondclean toothbrushes feature a Lithium-polymer battery responsible for longer working time.


DiamondClean features new inductive charging technology. It means the brush does not have to be plugged into the charger anymore. It is sufficient just to put it on the charging surface.

There are two charger accessories bundled with the brush.

Charging Glass

All the DiamondClean models include a glass charger, but you won’t get it with the other Sonicare models.

After use, put the toothbrush into the glass charger, and it will instantly start charging. Multipurpose it as a rinsing glass.

This toothbrush has a chrome base that features a charging glass that has two purposes. It can be used for mouth rinsing, and because it also has the latest in conduction technology, it can charge your toothbrush as it rests in the glass.

Philips DiamondClean Smart 9700 in Charging glass

Travel Case

The Classic model will include a regular travel case for when you’re on the go. It’s nothing fancy, but it does the job.

In contrast, DiamondClean smart models come with a premium travel case. Not only is it a hygienic store for your toothbrush, but it also functions as a portable charger if connected to a computer USB port or wall outlet.

The DiamondClean features an innovative USB travel case that also works as a charger. You can connect it to the computer’s USB port or use the included USB AC adapter and have your toothbrush charged while it is sitting in the case. This is a great feature, particularly if you often travel.

EasyStart Mode

Not everyone is used to the brushing power of the Sonicare DiamondClean toothbrushes.

To make it a less confusing experience, the EasyStart mode gradually increases the handle’s power over the initial 14 brushings. This makes sure that new users don’t feel overwhelmed due to the intensity or functions.


When it comes to its design, the DiamondClean is simple and stylish. Its handle has a ceramic finish, and its well-designed neck is highlighted because of the chrome accent ring.

Its electronic displays on the handle are hidden so that it does not interfere with the sleek white finish of the rechargeable toothbrush.

Both the Classic and the Smart models come in a sleek, ergonomic design that’s much more comfortable to hold. Depending on the color of the model you’re getting, the accessories may or may not be the same color.

For the DiamondClean Classic model, the toothbrush handle is a smooth tubular shape with a power button at the upper part. The different modes are lined up on the lower section of the body. At the very lower end, there’s a battery bar showing how much juice the toothbrush has.

You can get this in three color variants – Pearly White, Rose Gold, and Amethyst. While the Pearly White and Rose Gold model sport white brush heads with shiny gold/white borders, the Amethyst version dons chic, glossy jet black brush heads.

The Smart models are equipped with a segmented ovular area at the bottom with two buttons. The one at the top is the power button, and the other one is used to control the intensity level.

The small lit bars just below the second bar indicate the intensity. Mode names and the battery indicator are on the body and bottom, just like on the Classic model. The ovular area flashes purple when it needs to indicate something like excessive applied pressure.

The Sonicare DiamondClean Smart 9700 comes in two classic colors – Lunar Blue and Rose Gold.

black Philips Sonicare DiamondClean Smart toothbrush

Sonicare DiamondClean Colors

There are multiple Philips Sonicare Diamond color options to choose from:

  • Philips Sonicare Diamond Clean Classic – White, Black, and Pink.
  • Philips Sonicare Diamond Clean Smart 9300 and 9500 – White, Black, Pink, Rose Gold, and Grey.
  • Philips Sonicare Diamond Clean Smart 9700 – Rose Gold and Lunar Blue.

Related Reading: Philips Sonicare ProtectiveClean 4100 vs 5100 vs 6100 Review

Philips Sonicare DiamondClean Comparison

There are several Philips Diamondclean models available.

Many readers are puzzled by the differences between Classic and Smart models and different model numbers, such as 9300, 9500, 9700, and so on.

Below, I will compare Philips Sonicare DiamondClean models.

DiamondClean Classic vs 9300

As you can see in the Sonicare DiamondClean Classic vs Smart 9300 comparison table below, these models have two differences.

PriceModes & IntensitiesBluetooth & BrushSync

Philips Sonicare DiamondClean Classic WhitePhilips Sonicare DiamondClean ClassicCheck Price

Lower5 - Clean, White, Sensitive, Gum Care & Deep Clean / 1 intensityNo

Philips Sonicare DiamondClean Smart 9300 Rechargeable Electric Toothbrush, White HX9903/01Philips Sonicare DiamondClean SmartCheck Price

Higher4 - Clean, White+, Deep Clean+, and Gum Health / 3 intensities in each mode Yes


The first difference is the connectivity feature built into the Smart models.

Smart DiamondClean models feature Bluetooth technology that works with the smartphone app and the BrushSync technology that pairs the toothbrush with the brush head.

Modes and Intensities

The second difference is the number of brushing modes and intensities.

The older Classic model features 5 modes without the possibility to choose the brushing intensity level.

The Smart models have 4 or 5 modes depending on the model (you can find more about the modes in the next chapter), and you can switch between 3 intensity levels in each mode.

Sonicare DiamondClean 9300 vs 9500

There is only one difference if you compare the Sonicare 9300 vs 9500.

The Sonicare Diamond Clean 9500 is designed to clean your tongue. It has an extra tongue cleaning mode and a tongue brush.

Sonicare DiamondClean 9500 vs 9700

It is easy to explain the differences between DiamondClean 9500 vs 9700.


The top-of-the-line 9700 model is available in exclusive Lunar Blue and not-so-exclusive Rose Gold colors, while the 9500 is available in Rose Gold and regular colors like white, black, etc.

Brush Heads

Another difference is the number of bundled brush heads. The Sonicare 9500 comes with a set of 4 brush heads, but with the Sonicare 9700, you will get 2 such sets or 8 replacement heads.

Philips Sonicare DiamondClean Smart 9700 vs 9750

Then there is this Smart 9750 model, which basically is the 9700 model bundled with 4 brush heads and a brush head holder.


DiamondClean vs Sonicare FlexCare

People often have a hard time choosing between DiamondClean and the former Philips top-of-the-line brush Sonicare FlexCare Plus.

If you have not decided between these two brushes, read our comparison of Sonicare DiamondClean vs FlexCare Plus.

Philips Sonicare HealthyWhite vs DiamondClean

Another alternative to the Diamond Clean brush is Sonicare HealthyWhite, so I have also compared these brushes in the chapter about DiamondClean vs Healthy White differences in my Philips Sonicare HealthyWhite+ Review.

DiamondClean Pros and Cons

Here is a list of the advantages and disadvantages of Philips Sonicare DiamondClean toothbrushes.


  • Multiple intensity levels and cleaning modes to accommodate different needs
  • Smart models have built-in pressure, location, and scrubbing sensors
  • Long battery life
  • Timer features
  • Ergonomic build
  • Smart models feature a brush head replacement reminder system
  • Suitable for all ages
  • Sonicare App provides direct feedback and recommendations for smart models
  • Brush head recognition and mode optimization in Smart models
  • Unique glass charger
  • USB charging travel case for Smart models


  • Classic model lags much behind Smart models
  • Brush heads don’t come with storage options
  • Not exactly value models

Replacement Brush Heads

People will be able to have a more efficient brushing experience thanks to brush heads designed for this model, which now have a new diamond-cut design.

The brush head provides the user with more effective plaque removal and whiter teeth as it has 44% more bristles than the previous ProResults brush heads. There are two different sizes of brush heads which are Standard and Compact.

philips sonicare diamondclean smart brush heads 2


If you are looking for an advanced smart electric toothbrush with innovative features and a great design, look no further than the new DiamondClean toothbrush from Philips Sonicare.

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