Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Electric Toothbrush with App, Pressure Sensor, 4 Brushing Modes and 3 Intensity Levels, Black, HX9918/89
Philips DiamondClean Smart 9400 - Rechargeable Toothbrush - HX9918/89
Overall Rating: 1.3 / 5 (average from multiple review sources, as of 19 Oct 2026)
Based on a total of 1,019 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 1,019 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
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1-2 days
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£449.99
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Enjoy complete care with the Philips Sonicare DiamondClean Smart Electric Toothbrush - for up to 15 x healthier gums** and whiter teeth*. Its smart, app-connected technology delivers a personalised experience every time you brush.
£449.99
1-2 days
Philips.co.uk
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Product Information
Technical details
| Operating time (Full to Empty) | 14 days |
| Smartimer | None |
| Cleaning modes | For exceptional everyday cleaning |
| Timer | BrushPacer and Smartimer |
| Easy click-on brush head | Yes |
| Gum Health mode | Gently massages your gums |
| Pressure feedback | Ring lights up purple; Vibration and pulsing sound |
| Replacement reminder | Lets you know when to replace your brush head |
Battery
| Rechargeable battery | Yes |
| Battery level indicator | Yes |
| Battery technology | Lithium-Ion (Li-Ion) |
Other features
| Warranty period | 2 year(s) |
Packaging content
| Included brush heads | 4 A3 All-in-One |
| Number of handles included | 1 pc(s) |
| Charging case | Yes |
| Charger | Yes |
| Number of brush heads included | 4 pc(s) |
Power
| Battery life (max) | 336 h |
| Rechargeable | Yes |
| AC input voltage | 100-240 V |
| Power source | Battery |
| Battery type | Built-in battery |
Features
| Mobile app support | Yes |
| Bluetooth | Yes |
| Compatibility | iPhone with Bluetooth 4.0 and above ; Android phones with Bluetooth 4.0 and above |
| Purpose | Adult |
| Brush change indicator | Yes |
| Product colour | Black |
| Pressure sensor | Yes |
| Toothbrush frequency (pulsations) | 62000 movements per minute |
| Teeth brushing modes | Gum care, Whitening |
| Number of teeth brushing modes | 4 |
| Integrated timer | Yes |
| Number of speeds | 3 |
| Indication light | Yes |
| Adjustable speed | Yes |
| Toothbrush type | Sonic toothbrush |
Product information
At a glance
- Advanced sensor technology for optimal brushing
- Four cleaning modes for tailored dental care
- Sleek design with travel convenience and elegance
Note: This text was created with the help of AI.
Experience the Future of Oral Care
The Philips Sonicare DiamondClean Smart 9500 HX9918/89 is perfect for anyone looking to elevate their dental hygiene game. Whether you're a busy professional, a parent juggling multiple tasks, or someone who simply values a bright, healthy smile, this electric toothbrush is designed for you. It seamlessly combines advanced technology with user-friendly features, making it an ideal choice for those new to electric toothbrushes or seasoned users looking for an upgrade. For more options, check out other electric toothbrushes on our website: electric toothbrushes.Premium Features for Top-Tier Cleaning
One of the standout features of the DiamondClean Smart 9500 is its **smart sensor technology**, which guides you to achieve optimal brushing results. With **four cleaning modes**—Clean, White+, Gum Care, and Sensitive—you have the flexibility to choose what suits your needs best. The built-in pressure sensor alerts you when you are brushing too hard, ensuring that you take care of your gums while achieving that dazzling smile. Additionally, the **Bluetooth connectivity** allows you to track your brushing habits through the Philips Sonicare app, providing personalized feedback and tips for improvement.Sleek Design Meets Functionality
The Philips Sonicare DiamondClean Smart 9500 isn't just about performance; it also boasts a stunning design that will complement any bathroom aesthetic. With its **modern, sleek handle** and beautiful glass charging tumbler, it adds a touch of elegance to your daily routine. The **travel case** doubles as a charger, making it extremely convenient for those on the go. Available in a sophisticated color palette, this toothbrush makes oral care feel more luxurious and less like a chore.Exceptional Oral Health Benefits
Investing in the DiamondClean Smart 9500 means investing in your oral health. This powerful toothbrush is proven to remove up to **10 times more plaque** than a manual toothbrush, promoting healthier gums and whiter teeth. The **smart brush head recognition** automatically selects the optimal program for each brush head, ensuring you receive the best care possible. With up to **14 days of battery life**, you can enjoy long-lasting use without the hassle of frequent recharging. Say goodbye to plaque build-up and hello to a brighter, healthier smile!Note: This text was created with the help of AI.
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