The device features a built-in touchscreen, allowing users to toggle between eight cleaning modes and three intensity levels. This interface displays a visual map of the mouth, changing colors to provide immediate feedback on brushing efficacy. If a specific section requires more attention, the display highlights the zone for a redo.
Beyond manual control, the toothbrush integrates SenseIQ technology and a third-generation AI model. This system monitors pressure and brushing technique, automatically adjusting vibration intensity to protect sensitive gums. By lowering the price point to $379.99, Philips positions the 9900 as a more accessible alternative to competing high-end models like the Dyson CameraJet, while maintaining a premium feature set for its European and US releases.

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