# Philips Sonicare 7100 HX7421/08 Electric Toothbrush

Electric: The Philips Sonicare 7100 HX7421/08 is a connected sonic toothbrush with four modes, three intensity levels and pressure feedback. Its app guidance and travel charging case suit buyers who want more brushing options and a portable charging setup, though the supplied package list says the power supply is not included.

- [Original product page](https://aussiedealscout.com/product/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- [View offer](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- Market: AU
- Language: en-AU
- Currency: AUD
- Brand: Philips
- Model: HX7421/08
- Category: Beauty & Health > Personal Care Appliances > Electric Toothbrushes
- Price: 212.50 AUD
- Previous price: 284.65 AUD
- Discount: 25%
- Price checked: 2026-11-13T12:00:46.979Z
- Rating: 4.5 / 5
- Reviews: 250

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Four brushing modes and three intensity levels provide 12 combinations for different brushing preferences.
- Pressure feedback flashes purple and reduces vibration when the brush detects excessive pressure.
- The app is described as providing personalised guidance and progress reports.
- The listing claims up to three weeks of brushing between charges. The travel case has an integrated charger.

## Pros

- Multiple mode and intensity combinations allow more tailoring than a single-setting brush.
- Pressure feedback gives a clear signal to ease brushing pressure.
- App guidance and progress reports may help users review their routine.
- A travel charging case is listed for portable charging and storage of up to two brush heads.

## Cons

- The described cleaning settings and app guidance may be unnecessary for buyers who want a basic electric toothbrush.

## Specifications

### Identity
- Brand: Philips
- Model: HX7421/08
- Colour: Black
- Age range: Adult
### Brushing and controls
- Total settings: 12
- Pressure control: Intelligent pressure control, next generation Sonicare technology, 12 different settings, 4 cleaning modes
- Brushing movement: 62,000 brush head movements per minute
- Operation mode: Automatic
- Toothbrush head shape: Oval
- Bristle firmness: Medium
- Bristle material: Nylon
- Handle material: Plastic
### Power and battery
- Power configuration: ac charger
- Battery runtime claim: With just one charge, you can brush your teeth regularly for up to three weeks before you need to recharge.
### Dimensions and installation
- Weight listed: 0.43 Kilograms
- Package dimensions and weight: 23.4 x 17 x 6.2 cm; 432 Grams

## Before you buy

- The three-week runtime is a listing claim, and the package description explicitly says the power supply is not included. Replace the brush head every 3 months, as recommended in the listing. Its plaque and gum-health improvement figures are manufacturer claims, with the plaque comparison specified for Gum Health mode and the stated comparison against a manual toothbrush.

## A good fit for

- Adults seeking several brushing modes and intensity levels in one brush.
- People who want pressure feedback and app-based brushing guidance.
- Travellers who prefer a charging case and want the listing's claimed multi-week runtime.

## Less suited to

- Buyers who prefer a simple brush without app guidance or multiple settings.
- Buyers who require an included power supply, which the listing says is not included.

## Customer feedback

Customer feedback describes the brush as good quality and appreciates its cleaning performance, including a reported observation about plaque removal. The supplied rating distribution is mostly five- and four-star, but also includes lower ratings, so experiences are not uniformly positive. These reports may matter to buyers considering the listed cleaning modes and pressure control, but they do not establish a specific cause or independently verify the product claims.
- Positive themes: Customers describe the toothbrush as good quality.
- Positive themes: Customers appreciate its cleaning performance.

## Frequently asked questions

### How many brushing options does the Sonicare 7100 offer?
The listing specifies four modes and three intensity levels, making 12 combinations.
### Does it provide feedback if I brush too hard?
The listing says intelligent pressure control flashes purple and reduces vibration when excessive pressure is detected.
### What is included in the charging setup?
The stated set includes a travel charging case, charger and USB-A charging cable, but says the power supply is not included.
### How often should I replace the brush head?
The listing recommends replacing the Philips Sonicare brush head every 3 months.

## Alternative options

- [Philips Sonicare DiamondClean 9000 Rechargeable Sonic Electric Toothbrush with App, Built-in Pressure Sensor, 4 Clean Modes & 3 Intensities, Navy, HX9911/96](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- [Philips Sonicare 5300 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 2 Intensity Settings, SmarTimer, BrushPacer, 21-day Runtime, White, Model HX7108/05](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- [Philips Sonicare 5300 Electric Toothbrush, Sonic Toothbrush with 2 Intensity Levels, Next Gen Technology, Pressure Alert, EasyStart, SmarTimer and BrushPacer, Black, HX7101/05](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- [Philips Sonicare 6100 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 6 Brushing Settings, SmarTimer, BrushPacer, 21-day Runtime, Travel Case, Black, Model HX7401/09](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- [Oral-B iO 6 Connected Coach Electric Toothbrush with Travel Case, Black Lava](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)
- [Philips Sonicare 7100 Electric Toothbrush, Sonic Toothbrush with App, 4 Brushing Modes and 3 Intensity Levels, Pressure Alert, EasyStart, SmarTimer, White, Model HX7420/02 \[New Technology\]](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)

## Add-ons

- [Philips Sonicare W2 Optimal White Original Replacement Brush Heads, Black, Pack of 4, HX6064/88](https://aussiedealscout.com/visit/philips-sonicare-7100-hx7421-08-electric-toothbrush)

## Images

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 1](https://aussiedealscout.com/i/CEkNi_5lirDlyCWZ2PJKAFhWYCuWhA9sXLPWQyuQDNCGVExifQ8P6ZiasaLqDFPGZVxUhxO1vt_lRwVbPoU_bzBWDBRtQyn0aSPLcVEWbWGyJYIDhJeCSsWm.jpg)

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 2](https://aussiedealscout.com/i/j1zpsxzQVLzwCrdor_ToMYD2rqd-XB5lKgAe4RQGgY9VHX3_Z5qn_bv6MvL4O3dIzx6HEvQLO2--wiKxtn_KdO0Lbn4I-PX2W8DS0entn52OIf_PMUB-Fhau.jpg)

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 3](https://aussiedealscout.com/i/kPEyL1sJ-3rhrW26iZWiB2nPitGDsdPmWEnHsKYfTvXuadEX2FGI9lRHWZQRFV_970m5gNpVxVsCwOTlzUfW-ioFzFfGMAWC86L8TAjeW8N_AOlqJk0RJ-id.jpg)

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 4](https://aussiedealscout.com/i/0V_HfakhfG6nYA6WUnbOH1fh9wn1fZrPbF1qnEqznwRf1TJ9jdFWLfunf-Y7jGhR0_H4Lu6mm91VrsFOsU2c9VWyhSfXxsojtGm8PsUruLzjj68f5oLVD31a.jpg)

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 5](https://aussiedealscout.com/i/AQqvfY5ppaOci_8o6uHASYGS7f95VEH-h4uS3sAi0mx23j9FIBQpr715ZWRDkQ4eMftzWLeO7n7FP9hA5xfujz_UUZLLkiY7pZSyUZphamZTKFD9N3YfFoMs.jpg)

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 6](https://aussiedealscout.com/i/20JyHONDEobFsN5248bMWMOF-57QzA-_hAXj1O5eLCmTTKjgLrV1aIUgzJEjF0pr1w-BF51b_TJQdcXiSGTEaUHVumYnZ5Cp4nglpvI-xQJ37bYfvic8HV2A.jpg)

![Philips Sonicare 7100 HX7421/08 Electric Toothbrush — 7](https://aussiedealscout.com/i/KuT2Ub0znkMs5x21L6uOBYXJHBPZHO99Bk7QSuYs84nEL41nRyRgaZk0nnun4puZnPqkDAJysxIVSnPUaoWSWFMdgd8IIYMD9ovprpvQr2kK0ko49lY30KB2.jpg)