Products Support

Sign up for exclusive offers

Sign up for exclusive offers

All series

Philips Sonicare DiamondClean Smart 9400 Rechargeable Toothbrush

Support

Philips Sonicare DiamondClean Smart 9400

Rechargeable Toothbrush

HX9918/89

Philips Sonicare DiamondClean Smart 9400 Rechargeable Toothbrush

Go to shop

Log in or create an account

Register your product

You instantly have access to manuals, tailored support and more. Plus it’s quick and easy

Manuals & Documentation

Data Act Document - English

PDF file, 305.3 kB
11 September 2025

UK Declaration of conformity

PDF file, 145.3 kB
21 August 2025

Frequently Asked Questions

Parts & Accessories

Philips Sonicare
Charging glass
CP1722/01
- Transparent
Philips Sonicare
Charging station
CP1205/01
- Black
- UK specific
- Cord length: 95 cm
- 2 pin
- Charge with stand or glass
C3 Premium Plaque Defence
Standard sonic toothbrush heads
HX9042/33
- 2 pack
- Standard size
- Click-on
- BrushSync mode pairing
G3 Premium Gum Care
Standard sonic toothbrush heads
HX9052/17
- 2 pack
- Standard size
- Click-on
- BrushSync mode pairing
G3 Premium Gum Care
Standard sonic toothbrush heads
HX9052/33
- 2 pack
- Standard size
- Click-on
- BrushSync mode pairing
G3 Premium Gum Care
Standard sonic toothbrush heads
HX9054/17
- 4-pack
- Standard size
- Click-on
- BrushSync mode pairing
Philips Sonicare
Charging stand
CRP246/01
- DiamondClean Smart