Philips Sonicare Flexcare Whitening Edition

The Sonicare FlexCare Whitening brush uses patented sonic technology to polish and perfect your teeth. With 4 unique cleaning modes, it promises an effective and tailored brushing experience. As one of the top toothbrush brands backed by dentists, this brush unites advanced brush stroke technology and unique cleaning modes to brighten your smile in only 1 week (view details).

With many of us wanting a whiter smile, today’s toothbrushes have a lot of demand to meet growing standards of tooth care. While there is strong interest in high quality whitening brushes, it can be hard to know where to begin when looking for a long term brush to reduce stains. Yet, the wrong brush can have consequences for your oral health, such as risking enamel damage and gum sensitivity.

This Sonicare FlexCare Whitening toothbrush review is here to help you decide if this is the brush for you.

Sonicare FlexCare Whitening Toothbrush Performance

  • Removes up to 100% more stains than a manual toothbrush.
  • 31,000 brush strokes per minute for advanced cleaning.
  • Also removes up to 10x more plaque than a manual brush.

How does the FlexCare Whitening toothbrush work?

In contrast to 1 mode models, the FlexCare Whitening brush’s 4 cleaning options mean customized brushing for gum care, whitening, and sensitivity. Along with this, the patented sonic technology produces up to 31,000 brush strokes per minute. This means a more advanced cleaning experience than other electric brushes.

Like most Sonicare models, the FlexCare Whitening toothbrush also includes a Smartimer. This sets the brushing time to the advised 2 minutes to ensure a thorough clean. The FlexCare Whitening toothbrush also includes 2 premium brush head replacements, which means you can trial each brush head to see which suits you best.

What’s in the box?

Each Sonicare FlexCare Whitening toothbrush includes:

  • 2 White FlexCare handles.
  • 4 brush heads (2 DiamondClean and 2 Premium Plaque Control).
  • 2 charging travel cases, USB cables, and wall adapters.

Sonicare FlexCare Whitening Edition options

Unlike other models, the FlexCare Whitening toothbrush has one color option:

White (HX 6964/77)*

*The black edition has been discontinued.

Along with this, replacement brush heads can be purchased separately.

Key features of the Sonicare FlexCare Whitening Edition toothbrush

FeaturesSonicare FlexCare Whitening
Brush per minute31,000
Brushing mode4 clean modes
Battery life3 weeks
Charging optionsTravel charger
Brush head replacements2 DiamondClean brush heads, 2 Premium Plaque Control brush heads.

Sonicare FlexCare Whitening Edition toothbrush pros and cons


  • 4 unique cleaning modes for tailored brushing.
  • Removes up to 100% more stains than a manual brush.
  • 3 week battery life (longer than other brands).
  • 31,000 brush strokes per minute for advanced cleaning.


  • More costly than other models.
  • Less suited to those looking for a no frills design.

6 key features of the Sonicare FlexCare Whitening Edition toothbrush unpacked

1.) Brush per minute

Due to its sonic technology, which produces up to 31,000 brush strokes per minute, the FlexCare Whitening toothbrush drives fluid between the teeth, removing more plaque than a standard manual or rotary toothbrush. The superior brush strokes mean that the FlexCare Whitening brush can reach difficult areas and remove plaque more effectively than other brushes.

2.) Brushing mode

In contrast to 1-mode models, the Sonicare FlexCare Whitening toothbrush has 4 unique cleaning modes, which are as follows:

  1. Clean mode.
  2. White mode.
  3. Gum Care mode.
  4. Sensitive mode.

These options increase the chances of a tailored clean depending on your problem areas. The ‘Sensitive’ mode also means that users prone to hypersensitivity can use the brush with ease.

3.) Smartimer

Like many of the Sonicare brushes, the FlexCare Whitening brush includes a Smartimer which times the brushing cycle for 2 minutes (as advised by the ADA).

4.) Battery life

In contrast to other electric toothbrush brands such as Oral-B—whose brushes have an average battery life of 7 days—the Sonicare FlexCare Whitening toothbrush has a 3 week battery life, rivalling other models.

5.) Charging options

While the Sonicare FlexCare Whitening toothbrush requires less charging than other electric brushes, the package includes a travel charger—along with travel cases—for on-the-go convenience.

6.) Brush head replacements

Although most Sonicare brushes include 1 brush head, the Sonicare FlexCare Whitening Edition is unique in that it offers 4 brush heads in 2 different designs. The Sonicare FlexCare Whitening toothbrush has 2 DiamondClean brush heads and 2 Premium Plaque Control brush heads, meaning you can trial 2 options with 1 purchase.

How does the Sonicare FlexCare Whitening Edition toothbrush compare?

Each of the listed models include the standard Smartimer and have a 3 week battery life. It is also worth noting that each brush comes with a travel charger.

FeaturesFlexCare Whitening Edition3 SeriesDiamondClean
Brush per minute31,00062,00062,000
Brushing mode4 clean modes1 clean mode (3 intensity settings)5 clean modes (clean, white, polish, gum care, sensitive)
Brush head replacements2 DiamondClean brush heads, 2 Premium Plaque Control brush heads.1 ProResults gum health2 DiamondClean.
Latest PriceViewViewView

Who is the Sonicare FlexCare Whitening Edition toothbrush suitable for?

  • Those looking for advanced/tailored cleaning modes.
  • Those used to electric brushes.
  • Those interested in teeth whitening.

With this in mind, the Sonicare FlexCare Whitening toothbrush is less suited to those on a lower budget or those looking for a simple design. Because of the advanced cleaning modes, the FlexCare Whitening model is most suited to those who are used to electric brushes. For a simpler option, try the Easy Clean, which has 1 cleaning mode.

Reliability and long term use

While Sonicare’s immediate battery life is praised, its longevity is sometimes criticized because most brushes only last 1-2 years. With this in mind, many still opt to use Sonicare as its immediate battery life is convenient and the brand is trusted among dental professionals.

However, it is worth noting that correct use of Sonicare products is important. Sonicare recommends charging each brush for 24 hours before its first use and to avoid keeping it on charge at all times.

Sonicare FlexCare Whitening Edition toothbrush warranty and customer support

If you run into trouble using this toothbrush you should consider warranty and support options. It is worth noting that Sonicare FlexCare Whitening brush has a 2 year warranty and the following support options are available:

Phone: 1-800-682-7664



With its many reviews on Amazon, this product has proved widely popular with users and most buyers were happy with their purchase.


In sum, the Sonicare FlexCare Whitening Edition toothbrush is ideal for those looking for advanced whitening without the use of bleaching strips or other products. It is also a good investment for those with sensitive teeth or those seeking multiple cleaning options.

With its 3 week battery life, this brush is suitable for those on-the-go and those who are comfortable using an electric brush. Because of its package features, this is a high quality investment for users who can afford a costly product.

-> View best prices on Amazon

Frequently asked questions

What is this brush’s model number?

This brush is model number HX6964/77.

Does this brush have a pressure sensor?

No; this brush does not have the pressure sensor. However, the gum care and sensitive modes are designed to minimize pressure.

Does the brush beep in 30-second intervals?

The FlexCare Whitening brush pauses every 30 seconds to remind you to change quadrants. It will switch off at the end of the 2 minutes.

Does this brush come with a travel case?

This model comes with two travel cases, along with a travel charger.

How many handles are there?

Unlike some models, this brush comes with two handles.

Does the package include brush head covers?

Yes; there are brush covers for on-the-go use.

How long does the battery last?

This brush has the highest battery life of all Sonicare toothbrushes, lasting around 3 weeks without needing to charge.

What is the difference between the DiamondClean brush head and the Premium Plaque?

The DiamondClean brush head is most suitable for whitening, whereas the Premium Plaque brush head gives the deepest clean (4x more surface contact).

Why is this model more expensive than other Sonicare models?

The Sonicare FlexCare Whitening toothbrush is designed for advanced whitening. Along with this, the brush has several cleaning modes including gum care and sensitive cleaning. The package also includes multiple brush heads, handles, and travel cases, meaning it lasts longer than other models.

Do I have to use the DiamondClean/Premium Plaque brush heads?

While Sonicare provides two of each brush head, any of Sonicare’s snap-on brush heads are compatible with this model.

Size guide

  • 15 x 4 x 14 inches
  • 3.1 pounds

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