Philips Sonicare DiamondClean Smart 9400 HX9917/89
Choose your toothbrush
Black
Better toothbrush that automatically chooses the right brushing mode
Philips Sonicare Prestige
Better model
Insure your electric toothbrush
Coolblue takes care of everything, from taking out an insurance to repairs
For almost all accidents
More coverage in case of damage than your standard warranty
No deductible
How do I insure my electric toothbrush?
First, add your electric toothbrush to your shopping cart. On the next page, choose the Protection Plan below. You always have a 30-day return window and pay no deductible in case of damage.
2-year Protection Plan
7,99
one-time3-year Protection Plan
18,99
one-time
Philips: up to € 50 cashback
If you purchase the Philips Sonicare DiamondClean Smart 9400 HX9917/89 between 27 April 2026 and 30 June 2026, you'll receive a cashback up to € 50 from Philips. You can register your promotional product for the Philips promotion until 13 July 2026. Go to the promotional Terms and Conditions (PDF) for more information.
Specifications
Product
Product number | 894866 | |
|---|---|---|
Manufacturer code | HX9917/89 | |
Brand | Philips | |
Processing of your defect | Via Coolblue | |
Old product returned for free |
General
Brush head | Oblong | |
|---|---|---|
Toothbrush brushing technology | Sonic | |
Quantity | 1 | |
Pressure sensor | ||
Pressure sensor method | Light signal, Pulsation/rotation slow down, Via application | |
Children's toothbrush |
Brushing ease
Brushing mode types | Intense brushing mode, Massage brushing mode, Standard brushing mode, Teeth whitening brushing mode | |
|---|---|---|
Brushing motions | 62000 ppm | |
Timer | ||
Interval timer |
Brushing via smartphone
Compatible with smartphone / apps | ||
|---|---|---|
Contains artificial intelligence (AI) | ||
Analysis method | Microchip | |
Functions in app | Brush attachment replacement indicator, Brushing frequency, Mouth map, Pressure sensor, Timer | |
Dimension mouth map | 3D | |
Controlled via Android app | ||
Controlled via Apple app |
Brush attachment
Number of included brush attachments | 2 | |
|---|---|---|
Brush attachment included | Philips Premium All-in-One, Premium Gum Care | |
Brush attachment usage period | 6 months | |
Brush attachment replacement indicator |
Power supply
Power supply type | Rechargeable battery | |
|---|---|---|
Charger type | Charging glass, Travel pouch | |
Maximum battery life | 56 min | |
Battery charging time | 24 hours | |
Battery technology | Lithium-ion | |
Battery level indicator | ||
Charging indicator |
Accessories
Included by default | Charging dock, Charging glass, Rechargeable travel pouch with USB port | |
|---|---|---|
Type of travel pouch | Rechargeable |
Physical properties
Color | Black | |
|---|---|---|
Material | Plastic | |
Finish | Matte | |
Width | 2,75 cm | |
Depth | 3,05 cm | |
Height | 19,18 cm | |
Weight | 840 g |
This is the one
