Philips Sonicare 7500 Series HX7421/15 Sonic Electric Toothbrush

The Philips Sonicare 7500 Series HX7421/15 is a sonic electric toothbrush with 12 brushing settings, a visual pressure sensor and a charging travel case. Its four modes and three intensity levels give adults options to tailor brushing, while the case and claimed 21-day runtime suit travel.

At a glance

12 settings combine four modes with three intensity levels.
A visual pressure sensor lights up when the listing says you are brushing too hard.
BrushPacer prompts a change of area every 20 seconds, with a two-minute SmartTimer.
The manufacturer claims up to 21 days of regular brushing per charge.
Manufacturer-listed kit includes four A3 Premium All-in-one brush heads and a charging travel case.

Price

£169.99Save 60%

Reference price: ~~£429.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Four brushing modes and three intensity levels allow adjustments for different brushing preferences.
Visual pressure feedback and timed prompts provide cues during a brushing session.
A charging travel case and stated 21-day runtime support use away from home.
Four brush heads are listed in the package, so replacement heads are supplied with the handle.

Technical specifications

13 specifications

Identity
Brand	PHILIPS
Model	HX7421/15
Product type	Sonic electric toothbrush
Colour	Black
Intended age range	Adult
Handle material	Plastic

Brushing features
Number of settings	12
Brushing modes	Clean, Sensitive, White & Gum Health
Pressure sensor	Visual pressure sensor
Bristle movements	62,000 bristle movements per minute

Power and charging
Claimed runtime	Up to 21 days of regular brushing after a single charge.

Dimensions and installation
Dimensions listed	32 x 28 x 240 millimetres
Weight listed	0.39 Kilograms

What to know before buying

The runtime is a manufacturer claim for regular brushing, not a guaranteed duration for every setting or usage pattern. Claimed plaque and gum improvements are comparisons against manual brushing, with the gum claim specified for Clean mode over six weeks.

What’s in the box

Included

1 Philips Sonicare 7500 Series sonic electric toothbrush
4 A3 Premium All-in-one brush heads
1 charging travel case
1 USB-A charging stand

Who is it for?

A good fit for

Adults wanting multiple brushing modes and adjustable intensity.
Travellers who want a charging travel case and a stated multi-week runtime.
People who find visual pressure feedback and timed brushing prompts useful.

Philips Sonicare 7500 Series HX7421/15 Sonic Electric Toothbrush · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 40 ratings

5 stars65%65%
4 stars31%31%
3 stars4%4%
2 stars0%0%
1 star0%0%

The supplied aggregate ratings are mostly in the higher star categories, with a smaller share in the middle category. This offers a generally favourable but limited snapshot, not evidence about specific features or reasons for satisfaction. Consider the ratings alongside the listed modes, pressure feedback and travel features, which may matter to buyers seeking configurable brushing and portability.

Frequently asked questions

How many brushing options does the Sonicare 7500 offer?

The listing specifies 12 settings, comprising Clean, Sensitive, White and Gum Health modes with three intensity levels.

Does it have a timer?

Yes. The BrushPacer prompts a change of area every 20 seconds, and the SmartTimer indicates completion after two minutes.

What is the claimed battery runtime?

Philips claims up to 21 days of regular brushing after a single charge. Actual runtime may depend on use.

What is listed in the package?

The manufacturer contents list specifies the toothbrush, four A3 Premium All-in-one brush heads, a charging travel case and a USB-A charging stand. The stand's power adaptor is not included.