Philips’ motion-tracking smart toothbrush uses AI to make you a better brusher
Philips has launched the Sonicare Next-Generation DiamondClean 9900 Prestige smart toothbrush in Europe and the US, after first announcing the model in July. The new version adds a built-in touchscreen, motion-tracking and a third-generation AI model and debuts at $379.99, with wider availability planned for 2027.

Why It Matters
The product continues a trend of oral-care devices integrating onboard displays and AI-driven feedback to guide users’ brushing technique. Its price point and features position it as a lower-cost alternative to other camera-equipped smart toothbrushes on the market, while offering new on-device guidance tools.
Key Facts
- Product name: Philips Sonicare Next-Generation DiamondClean 9900 Prestige
- Initial announcement: July (year not specified in excerpt)
- Availability: Now available in Europe and the US; broader global rollout expected in 2027
- Price: $379.99 for the new model; previous iteration discounted from $429.99
- Competitive comparison: Cheaper than Dyson's $499 CameraJet smart toothbrush (reportedly having issues for some early adopters)
Philips has released the Sonicare Next-Generation DiamondClean 9900 Prestige smart toothbrush in Europe and the United States after first revealing the model in July. The company plans a wider international rollout in 2027. Philips is positioning the new unit below some competing premium smart brushes by pricing it at $379.99, while the earlier DiamondClean model remains on sale at a reduced price from $429.99.
The toothbrush incorporates a built-in touchscreen that lets users pick from eight cleaning modes and three intensity settings, including gentler options aimed at sensitive teeth and gums. The display also shows a 12-segment mouth map that changes color based on motion-tracking data to indicate which areas the device considers well brushed and where additional attention is needed.
Beyond the screen, the Next-Generation DiamondClean 9900 uses a color-changing light ring on its base and leverages Philips’ SenseIQ system together with a third-generation AI model to monitor brushing. The device can warn users when they are pressing too hard and will automatically adjust vibration intensity to help maintain safe and effective brushing technique.
Philips’ launch continues a broader industry move toward embedding displays and on-device intelligence in everyday appliances. While the 9900 introduces real-time, on-brush feedback and automated adjustments, it does not add features such as flossing; compared with other premium devices like Dyson’s CameraJet, the Sonicare aims to deliver advanced guidance at a lower price point.
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