The Philips Sonicare DiamondClean Prestige 9900 HX9992/45 is the perfect combination of smart technology, elegant design and unrivalled performance for your daily dental care. This electric toothbrush with sonic technology provides thorough and gentle cleaning, even in hard-to-reach areas, and removes up to 20 times more plaque than conventional manual toothbrushes. The innovative SenseIQ technology analyses pressure, movement and brushing surface up to 100 times per second and automatically adjusts the intensity to provide optimum protection for gums and teeth. A light ring reminds you to reduce the pressure - for a comfortable and gentle brushing experience. The A3 Premium All-in-One brush head combines everything in one: precise cleaning, gentle care of the gums and effective removal of discolouration. Triangular bristle tips ensure a visibly whiter smile after just two days, while longer bristles improve the health of the gums. With up to 62,000 brushing movements per minute, the DiamondClean Prestige ensures dynamic fluid flow and a fresh, clean mouth feel. Its compact, luxurious design, a premium vegan leather travel case and a stylish charging base complete the premium experience of the Philips Sonicare DiamondClean Prestige 9900.
Brush like you always do - 20 times more effective at removing plaque compared to a manual toothbrush
Even hard-to-reach areas are cleaned with up to 62,000 bristle movements - for an exceptionally fresh and clean feeling
Removes up to 100% more discolouration in less than a week compared to a manual toothbrush
15 times healthier gums compared to a manual toothbrush, measured over 6 weeks
1x Philips DiamondClean Prestige 9900 handpiece, 4x A3 Premium All-in-One brush heads, 1x high quality USB charging case, 1x charging base, 1x USB cable
Target group | Adults |
Number of levels | 5 x |
Power supply | Rechargeable battery operated |
Battery life | 336 h |
Exact colour description | Midnight Blue |
Toothbrush type | Sonic toothbrush |
Item number | 54393192 |
Manufacturer | Philips Sonicare |
Category | Electric toothbrush |
Manufacturer no. | HX9992/45 |
Release date | 1.3.2025 |
Sales rank in Category Electric toothbrush | 119 of 930 |
May include power adapter | No |
Colour | Blue |
Exact colour description | Midnight Blue |
Target group | Adults |
Toothbrush type | Sonic toothbrush |
Equipment + Functions | App supports, Brush head change reminder, Charge level indicator, Print feedback, Timer |
Cleaning programme | Daily clean, Deep clean, Gum massage, Sensitive, Whitening |
Number of levels | 5 x |
Manufacturing technology | Sonic technology |
Country of origin | China |
CO₂-Emission | |
Climate contribution |
Model number | 45, HX9992 |
Power supply | Rechargeable battery operated |
Battery life | 336 h |
Charging variant | Charging station |
Battery type | Li-ion |
Battery size | Device specific |
Mains voltage | 220 V |
Items per sales unit | 1 x |
Number of brush heads | 4 x |
Scope of delivery | 1x a high-quality USB charging case, 1x Charging station, 1x Philips DiamondClean Prestige 9900 handpiece, 1x USB cable, 4x A3 Premium All-in-One brush head |
Length | 24.90 cm |
Width | 16.90 cm |
Height | 7.40 cm |
Weight | 706 g |
How often does a product of this brand in the «Electric toothbrush» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec GalaxusHow often is a product of this brand in the «Electric toothbrush» category returned?
Source: Digitec GalaxusWhen it comes to cleaning, the Philips Sonicare is hard to beat. The cleaning performance is convincing. Less convincing, however, are the comparatively short battery life and the need for an app to change the cleaning programme or activate the pressure sensor.
The Sonicare 9900 is equipped with a variety of sensors that constantly monitor your brushing behaviour. Among other things, they detect the pressure, where you are brushing and how long certain areas are cleaned. If too much pressure is applied during brushing, the smart toothbrush automatically reduces the power to prevent damage to teeth and gums...
The Philips sonic toothbrush has a high-quality finish, is pleasant to use and cleans very thoroughly. It is also equipped with useful accessories and the accompanying app provides valuable tips to improve the brushing results.
Luxury model with very good tooth cleaning. The high-priced and lavishly equipped sonic toothbrush from Philips cleans the teeth very well. It scores well in the categories handling, durability and environmental properties. The accessories include an optical pressure control and a travel case with charging option...
