# Philips Sonicare 2100 Series Electric Toothbrush HX4021/01

Electric: The Philips Sonicare 2100 Series HX4021/01 is a rechargeable sonic toothbrush with two intensity settings, a gradual-start feature and timed brushing prompts. Its listed 14-day battery life is based on regular brushing, while an inconsistency between the model name and stated included toothbrush series means the selected listing’s bundle is worth checking.

- [Original product page](https://bargainpostbox.co.uk/product/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [View offer](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: PHILIPS
- Model: HX4021/01
- Category: Beauty & Health > Personal Care Appliances > Electric Toothbrushes
- Price: 26.99 GBP
- Previous price: 59.99 GBP
- Discount: 55%
- Price checked: 2026-11-14T10:06:40.448Z
- Rating: 4.5 / 5
- Reviews: 634

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

- Choose between Medium and Low intensity, with EasyStart gradually increasing brushing power over the first 14 cleans.
- BrushPacer prompts a change of area every 30 seconds, and SmarTimer indicates when a two-minute session is complete.
- The listing claims up to 14 days of regular brushing per full charge. The description specifies standard mode and two minutes of brushing twice daily.
- The manufacturer claims 31,000 bristle movements and up to three times more plaque removal than a manual toothbrush with the Intercare head. These are product claims, not independent measurements.

## Pros

- Two intensity options and gradual power increase give manual-brush users a gentler transition to sonic brushing.
- Timed prompts provide a simple structure for covering areas and reaching a two-minute session.
- A rechargeable battery with a stated routine-use duration of up to 14 days may reduce how often charging is needed.

## Specifications

### Identity
- Brand: PHILIPS
- Model: HX4021/01
- Colour: White
- Intended age range: Adult
### Brushing and operation
- Intensity settings: 2
- Operation mode: Automatic
- Brushing movement: Vibrate
- Timer feature: Brushing Timer
- Head shape: Oval
- Bristle material: Nylon
- Handle material: Plastic
- Item firmness description: Medium
### Battery and dimensions
- Claimed battery runtime: up to 14 days of regular brushing after 1 full charge
- Dimensions listed: 5.5 x 10.8 x 22 centimetres

## Before you buy

- Listing details are inconsistent about the included toothbrush series: the title identifies the 2100 Series, while the set description says it includes a 2000 Series toothbrush. The battery claim is also qualified by regular use, with the description specifying standard mode and two minutes twice daily. Confirm the selected model and kit contents before buying.

## A good fit for

- Adults moving from manual brushing to an electric toothbrush who want gradual-start assistance.
- Buyers who prefer two intensity choices and timed prompts for a routine brushing session.
- People looking for a rechargeable toothbrush with a stated routine-use battery life of up to 14 days.

## Less suited to

- Buyers who need a confirmed 2100 Series bundle without first checking the series discrepancy in the listing.
- Anyone seeking more than two intensity settings, based on the supplied product details.

## Customer feedback

Customer feedback reports positive impressions of build quality, cleaning effectiveness and battery life, including a mention of the pacing prompt for thorough brushing. Comfort is mixed, with some finding it comfortable and others uncomfortable. These reports may matter if you value timed brushing and fewer charging interruptions, but comfort is personal and the stated battery duration remains a listing claim.
- Positive themes: Customers report good quality and effective cleaning.
- Positive themes: Some customers praise battery life and mention the pacing prompt as helpful for thorough brushing.
- Mixed feedback: Comfort experiences differ, with some customers finding the toothbrush comfortable and others reporting discomfort.

## Frequently asked questions

### How many intensity settings does the HX4021/01 have?
The listing specifies two settings, described as Medium and Low.
### How do the brushing prompts work?
The listing says BrushPacer prompts a change of area every 30 seconds, while SmarTimer indicates completion of a two-minute session.
### How long does the battery last?
The listing claims up to 14 days of regular brushing after a full charge. Its description bases this on standard mode, two minutes per session and twice-daily brushing.
### What toothbrush is included?
The title identifies the product as a 2100 Series toothbrush, but the set description names a 2000 Series toothbrush. Check the selected listing’s kit details before purchase.

## Alternative options

- [Derffin Toothbrush Heads for Philips Sonicare Power Handles 8 Pack in Black \| Medium Soft and Flexible Bristles, Classic Replacement Toothbrush Heads HX6014, Fit Most Philips Sonicare Models](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [SURI NEW Core Sonic Electric Toothbrush \| Up to 4 Weeks Battery \| Travel Head Cover \| Pressure Sensor \| Bio-Based Body\* \| 2-Minute Timer \| Plant-Based Head - Orange](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Toothbrush Heads Compatible with Philips Sonicare Electric Toothbrush, Replacement Brush Heads Fit for Sonicare 3100 4100 4300 5300 5500 6100 9000 \(8 White, 8 Count\(Pack of 1\)\)](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Trustnice Toothbrush Heads Compatible with Philips Sonicare Toothbrush, Replacement Brush Heads for EasyClean, Gum Health, HealthyWhite Brush Snap-On Handles, 8 Pack](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Philips Sonicare DiamondClean 9000 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, 4 Brushing Modes, 3 Intensity Levels, Charging Glass, Black & Rosegold, Dual Pack, Model HX9914/57](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Philips Sonicare Next-Generation DiamondClean 8000 Sonic Electric Toothbrush − with Smart Pressure Feedback, and 15 Settings, Dark Green, HX8312/14](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Aquasonic Black Series Ultra Whitening Electric Toothbrush \| ADA Accepted Toothbrush \| 8 Brush Heads & Travel Case \| 40,000 VPM Electric Motor & Wireless Charging 4 Modes w Smart Timer](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Philips Sonicare 6100 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 6 Brushing Settings, SmarTimer, BrushPacer, 21-Day Runtime, Travel Case, Navy Blue, HX7403/07](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [IPX7 Waterproof Sonicare Electric Toothbrush, 2-Hour Fast Charge with Intelligent Time Reminder, 5 Modes, 8 Brush Heads, Travel, Indoor, Outdoor, Blue](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)
- [Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 3 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, Travel Case, Black, HX4034/22, \[New\]](https://bargainpostbox.co.uk/visit/philips-sonicare-3100-electric-toothbrush-hx4034-22)
- [SURI Pro Sonic Electric Toothbrush \| Over 4+ Weeks Battery \| Pressure Sensor \| Aluminium Body \| 2-Minute Timer \| Plant-Based Head \| Green](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)

## Add-ons

- [Philips Sonicare 2100 Series Electric Toothbrush - Sonic Toothbrush with 2 Intensity Levels, EasyStart Feature, SmarTimer, 14](https://bargainpostbox.co.uk/visit/philips-sonicare-2100-electric-toothbrush-hx4021-01)

## Images

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 1](https://bargainpostbox.co.uk/i/-YgsdSvLO65apUEGHLGROo8GCrazVa_MkKDcx-4U2WOeKGPMn6JgHeigeZuO_bNvkR8YxAq6lz4djBs-mbsZlUy5PD_3O9J5UwROHc9TnUuHjJJOa86NMQDh.jpg)

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 2](https://bargainpostbox.co.uk/i/YVHC9oZtD5aG5J1zlVBRrhJDH5k9gjzLWh9gcUG8i5WvjBGSp_aYezP5XdbK2ckIYU04qIVvSqwjf1LnadaOUsvS_oj4B35iFdwehvRq0lSUtUGneqBb2EdW.jpg)

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 3](https://bargainpostbox.co.uk/i/w2tHQVhoId6l8Krwnoyb7V-rZsqJGHfJ_HzIestBsCVsbyibhVkR-bRC-c8MEGhgESXdx95TJ6pDd0_kJK1LTWBOpW4BXYtbB1GRMR-XEgY2NPER8kYNaZJM.jpg)

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 4](https://bargainpostbox.co.uk/i/AVTlOzcrE-0XzarTDCyrtbXIbccKfjvRdpw0N5DmpESg5zeCXp8Z-DQNwslFngCzXksT72CvzlzbVbTfaDWrjYt-82QExHPGPo_LLpWanqV-tZqlWWN-oiMI.jpg)

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 5](https://bargainpostbox.co.uk/i/qJR1CJgfBICPUaLa4B48cQv7mBeOqd-1m4kKdfmuR4yWhUhg56QuPZZcyqAVUmVGjXlAD8snz4PhFiQ9LizDEFPBzSO_VDSHWJ5gtN7gCx8Zdu7OyWPikUBk.jpg)

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 6](https://bargainpostbox.co.uk/i/ASgNBkBb_Ddx_BI-lVML6vsUFblOsvH3ezFjvTI6wrNCtYGIzReK1awpkpMnXvD7nAqyy3yFK9FbNIfguQ_VKV58Y92eDI24PT9-O7YBKrWUKueWeu3-tMSj.jpg)

![Philips Sonicare 2100 Series Electric Toothbrush HX4021/01 — 7](https://bargainpostbox.co.uk/i/Z_yGjUhMhWNdgjUehR4lQ5E-Xcn7EjMthZGvnsR2bCbnOrZ_ujY2nJLm6KlCI2Quy3QOgiYhxj8k17lHmo02StMpqAfYLH3snLmBU0wpUcpn7_tWjV6_FUDk.jpg)