Philips HX9923/21 Sonic Electric Toothbrush with Smart Coaching

Experience a new level of oral care with the Philips Sonicare DiamondClean Smart electric toothbrush. It connects to the Sonicare app to provide real-time coaching and track your brushing coverage, helping you improve your technique. The built-in pressure sensor alerts you when you're brushing too hard, protecting your gums and enamel. Smart brush head recognition automatically selects the optimal mode and monitors head wear. With advanced sonic technology, it removes up to 20x more plaque than a manual toothbrush and improves gum health. Customizable brushing modes let you tailor your routine, while the long-lasting battery provides up to two weeks of power, perfect for travel. Included premium brush heads ensure a thorough clean every time.

  • 2 variants
  • Removes up to 20x more plaque
  • Color: 2 colors
Price range $280 – $293
Price spread ~5% Across new variants
Customer rating 4.3 1,385 ratings

Available variants (2)

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DiamondClean Smart 9500 Electric Toothbrush — Electric Toothbrush, Philips
Price $279.99
Updated May 11, 2026
Available to order
Type
Sonic Electric Toothbrush
Brand
Philips Sonicare
Model
HX9923/21
View variant

Variant comparison

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Feature White, DiamondClean Smart Pink, HX9923/21
Price $292.71 $279.99
Updated Mar 29, 2026 May 11, 2026
Availability Available to order Available to order
Type Electric Toothbrush Sonic Electric Toothbrush
Brand Philips Philips Sonicare
Model DiamondClean Smart HX9923/21

Amazon live offers

Offers updated

1 live offer
Top live offer $279.99
New from $279.99
Offer count 1+
Seller Condition Price Shipping Updated
Sold by Amazon FBA New $279.99 Free shipping 6/3/26 View offer

Overview

Compare Philips HX9923/21 Sonic Electric Toothbrush with Smart Coaching variants, pricing tiers and key differences.

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How variants differ

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  • Model

Who each variant is for

  • Start with your budget: the visible price spread across variants is about 5%.

Reviews

4.3 / 5 from 1,385 ratings
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4.3
(1,385 ratings)

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