Philips-Sonicare 9400 HX9917/88 DiamondClean Sonic Electric Toothbrush with App, White

Next-generation smart sonic toothbrush

The Philips Sonicare DiamondClean 9400 is a powerful sonic toothbrush that, when connected to the Sonicare app, becomes your personal dental advisor. The app tracks your brushing habits, provides real-time feedback, and recommends specific steps to improve your technique. This helps you achieve a healthier mouth and a more effective cleaning.

Powerful cleaning with gentle care

The All-in-One A3 brush head is designed with multi-angle bristles that remove up to 20x more plaque, provide 15x healthier gums in 6 weeks, and remove up to 100% more stains in less than two days compared to a manual toothbrush. Sonicare Fluid Action technology with 62,000 brush movements per minute drives fluid deep between teeth and along the gum line.

Gum protection thanks to pressure sensor

There's a light ring at the base of the brush that alerts you if you're applying too much pressure while brushing. This visual pressure sensor helps prevent gum damage and promotes healthy brushing without unnecessary strain.

Personalized cleaning settings

The DiamondClean 9400 offers 4 cleaning modes – Clean, White+, Gum Health and Deep Clean+ – and 3 intensity levels (low, medium, high). This allows you to adjust the cleaning to your exact needs – from gentle cleaning for sensitive gums to intensive whitening.

Elegant design and practical accessories

The brush has a slim design and comes with a charging cup and travel case with integrated charger, ensuring convenient charging at home or on the go. In addition, the brush will alert you when it needs to be replaced, monitoring the frequency and intensity of use.

Battery life and software support

It lasts up to 14 days of normal use on a single charge. Philips guarantees security updates until the end of 2026 and software support for 2 years from purchase. The app is compatible with Android devices with Bluetooth 4.0 and higher.

Features:

• Model: Philips Sonicare DiamondClean 9400 HX9917/88
• Sonicare App Connection – Feedback and Advice
• All-in-One A3 attachment – 20x more plaque, 15x healthier gums
• 62,000 movements per minute – deep cleaning
• Visual pressure sensor – gum protection
• 4 modes and 3 intensities – personalized settings
• Charging cup and travel case with charger
• Head replacement reminder
• Battery life up to 14 days