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Deal.ai › Sonicare › Sonicare Toothbrushes
Sonicare
Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23
Sonicare

Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23

4.3(972 ratings)

Best price now

$56.99at eBayChecked 8 h ago

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Lowest price today: $56.99 at eBay (checked Nov 15, 2026).
  • Checked at 4 stores.

Our take on the Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23

The Philips Sonicare 4300 is a mid-range sonic toothbrush with two intensity settings, a pressure sensor, and a built-in two-minute timer with QuadPacer. It uses Advanced Sonic Technology to pulse fluid between teeth and along the gumline, and EasyStart ramps power up over the first 14 uses so new users can adjust. It runs up to 14 days per charge on standard mode and ships with a travel case. Against Sonicare's 2100 and 4100 models it adds the second intensity setting and travel case; against the 5100 and 9000 series it gives up extra modes and a charging travel case, so it suits buyers who want a solid everyday clean without paying for premium extras.

Best forFirst-time sonic toothbrush buyersEveryday home and travel usePeople with sensitive gums who want pressure feedback
Pros
  • Pressure sensor warns when you brush too hard
  • Two intensity settings, including a gentler low mode
  • EasyStart eases new users in over 14 uses
  • SmarTimer and QuadPacer guide a full two-minute brush
  • Up to 14 days of brushing per charge
  • Travel case included
Cons
  • Only two cleaning modes, no whitening or gum-care programs
  • No charging travel case; the case holds the handle only
  • Replacement heads add ongoing cost
  • Battery life drops on the higher intensity setting

Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23 prices at every store

  • Dillard'sNew

    In stock

    $64.99+ $9.95 shippingChecked 8 h ago
    Visit Dillard's
  • eBayNew

    Availability unknownSold by p.h.homesupplis

    $56.99Checked 8 h ago
    Visit eBay
  • MercariNew

    Availability unknown

    $88.00Checked 8 h ago
    Visit Mercari
  • WalmartNew

    Out of stockSold by The Variety Shoppe LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $58.50Free shippingChecked 8 h ago
    Visit Walmart

Store links may earn us a commission.

Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23 price history

Lowest price we've seen: $56.99 on Nov 15 at eBay. Tracked across 3 stores since Nov 15.

What reviewers say

  • 4.3 / 5972 ratings

Rated 4.3 out of 5 from 972 ratings, the 4300 is generally well received as an easy, effective step up from a manual brush. Owners like the pressure sensor and the gentler low setting, while some find the single-button operation and limited modes basic.

What people mention
  • CleaningPraisedOwners say teeth feel noticeably cleaner and smoother than with a manual brush.
  • Pressure sensorPraisedUsers report the sensor helps them stop pressing too hard and protects their gums.
  • ModesCriticisedSome buyers find two intensity settings limiting compared with brushes that offer whitening or gum-care modes.
  • BatteryMixedBattery life is fine for daily use, but some say it falls short of the claimed two weeks on the stronger setting.
  • Ease of usePraisedThe EasyStart ramp-up and simple single-button operation are called easy to get used to.
  • Brush headsCriticisedOwners note that replacement heads are a recurring cost and the reminder pushes frequent changes.

About the Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23

The Philips Sonicare 4300 Series is a sonic electric toothbrush. It comes with C2 Optimal Plaque brush heads. Advanced Sonic Technology pulses fluid between teeth and along the gumline for a gentle clean, including in hard-to-reach areas. It removes up to 700% more plaque than a manual toothbrush.

A built-in pressure sensor lets you know when to ease off, which helps protect your gums. The EasyStart feature adjusts the power level over the first 14 uses to help you get used to the brush. The QuadPacer helps you improve your brushing technique, and the SmarTimer helps you reach the recommended 2 minutes of brushing.

A single charge lasts up to 14 days, based on two 2-minute brushings per day on standard mode. The replacement reminder tracks how often and how hard you brush. It tells you when it's time to replace the brush head. The included travel case makes it easy to take along on trips.

Model
HX3684/23
Brand
Sonicare
Color
White
Dimensions
2.48" x 5.47" x 8.66"
Brush head
C2 Optimal Plaque
Intensity
Two intensity settings
Features
Pressure sensor, EasyStart, QuadPacer, SmarTimer, replacement reminder
Battery life
Up to 14 days per charge (two 2-minute brushings per day, standard mode)
Charging
USB charger (power adapter not included)
In the box
1 Philips Sonicare 4300 Series electric toothbrush, 2 C2 Optimal Plaque brush heads, 1 travel case, 1 USB charger

Specifications

multipack_quantity
1Source
color
WhiteSource
size
2.48" x 5.47" x 8.66"Source

Questions and answers

How is the 4300 different from the Sonicare 4100?
The 4300 adds a second intensity setting and includes a travel case. Both share the pressure sensor, two-minute timer, and QuadPacer.
Does it come with a brush head?
Yes, it ships with a C2 Optimal Plaque brush head, the head Philips cites for its plaque-removal claim.
How long does the battery last?
Philips rates it at up to 14 days of two-minute brushings twice a day on standard mode. Expect less on the higher intensity setting.
Is it good for sensitive gums?
The pressure sensor pulses when you press too hard, and the lower intensity setting is gentler. EasyStart also eases you in over the first 14 uses.
Can I use other Sonicare brush heads on it?
Yes, it takes standard Sonicare snap-on heads, including plaque, gum-care, and whitening versions.
Is the travel case included?
Yes, a travel case is included. It holds the handle but does not charge it.
Where is the Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23 cheapest?
At eBay, for $56.99, as of our latest check.
What do buyers say about the Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23?
Rated 4.3 out of 5 from 972 ratings.
Where can I buy the Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23?
4 stores we checked sell it, including Walmart, eBay, Dillard's, Mercari.

Stores we've priced the Philips Sonicare 4300 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Travel Case, White, Model HX3684/23 at

  • Dillard's deals and prices

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