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Choose by handle controls and what comes in the box

The Sonicare 4100 HX3681/23 has Clean mode with High and Low intensity settings and an included C2 head. The ProtectiveClean 5300 HX6423/34 adds White and Gum Care modes, plus a travel case and three included heads. Pick by the routine controls and kit you will use; these differences do not show which brush cleans better.

Published by Pickoryx · Published 2026-09-28

Source checked 2026-09-28 00:45 UTC

Products compared

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The buying question

Do you prefer a single Clean routine with two intensity settings, or the named White and Gum Care options and a larger travel-ready starter kit?

HX3681/23 keeps the handle controls to Clean with High and Low settings and lists one C2 head and a charger. HX6423/34 lists Clean, White and Gum Care modes and includes one G2 head, two W2 heads, a case and charger. This is a control and package choice, not a cleaning-performance ranking.

Quick verdict

Choose Philips Sonicare 4100 Series HX3681/23 White if

  • You want Clean mode with a High or Low intensity choice and the listed one-head C2 kit.
  • You do not need a travel case or the additional included heads in the HX6423/34 package.
View Philips Sonicare 4100 Series HX3681/23 White on AmazonPaid link

Choose Philips Sonicare ProtectiveClean 5300 HX6423/34 Black if

  • You want the named White and Gum Care options; Philips describes Gum Care as one extra minute of reduced-power brushing.
  • You will use the listed travel case and the one G2 plus two W2 heads included with HX6423/34.
View Philips Sonicare ProtectiveClean 5300 HX6423/34 Black on AmazonPaid link
When to skip: You are choosing based on proven cleaning or health outcomes; this comparison has no independent matched performance evidence.
When the recommendation changes
  • The current exact-ASIN package contents or included charger differ from the manufacturer specification sheet; verify the chosen offer.
  • You need independent comparative performance or clinical evidence; these sources do not provide a matched test.

The differences that matter

Handle Controls And Routine Modes

Philips Sonicare 4100 Series HX3681/23 White

Philips lists Clean mode with High and Low intensities for HX3681/23.[2, 1, 4]

Philips Sonicare ProtectiveClean 5300 HX6423/34 Black

Philips lists Clean, White and Gum Care modes for HX6423/34 and describes Gum Care as one extra minute at reduced power.[6, 5, 8]

What this changes: A buyer who wants Clean with intensity choices can select A; a buyer who wants the named White or Gum Care routines can select B. This says nothing about comparative efficacy.[2, 6, 5]

The better fit depends on your priorities

Included Heads Charger And Travel Case

Philips Sonicare 4100 Series HX3681/23 White

Philips lists one C2 head and one charger in the HX3681/23 package.[2, 1, 9]

Philips Sonicare ProtectiveClean 5300 HX6423/34 Black

Philips lists a G2 head, two W2 heads, a travel case and a charger in the HX6423/34 package.[6, 5, 8]

What this changes: The practical choice is between the single listed A head and B's three included heads plus case. It does not establish long-term head compatibility, cost or value.[2, 6]

The better fit depends on your priorities

Best for your routine

A buyer who prefers Clean with a choice between High and Low intensity settings

Best fit: Philips Sonicare 4100 Series HX3681/23 White

Based on listed features, not comparative testing.

Philips lists Clean plus two intensity settings for the exact HX3681/23. This is a control-fit recommendation only.

View Philips Sonicare 4100 Series HX3681/23 White on AmazonPaid link

A buyer who wants named White or Gum Care modes and the three-head case kit

Best fit: Philips Sonicare ProtectiveClean 5300 HX6423/34 Black

Based on listed features, not comparative testing.

Philips lists all three named modes and the exact HX6423/34 package contents. This is a control and kit-fit recommendation only.

View Philips Sonicare ProtectiveClean 5300 HX6423/34 Black on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

No price premium is established here. Compare the current price and seller terms for the exact model you plan to buy; the extra modes, heads and case matter only if you will use them.

No buy-timing recommendation is supported by the available price evidence. Compare the current exact-model offers and seller terms before ordering.

Limitations

  • No independent, matched cleaning, durability or health-outcome testing was found for these exact models; no performance or clinical winner is claimed.
  • Mode names describe manufacturer-listed routines only. They are not evidence that either handle cleans better or treats a condition.
  • Manufacturer specification sheets describe the model package; verify the contents and seller of the current exact-ASIN offer before ordering.
  • The HX3681/23 specification lists one charger but does not say whether a separate wall adapter is included. If you need a wall adapter, check the package details for the specific offer before ordering.
  • The Philips C2 accessory page confirms click-on and BrushSync mode pairing for that head but does not establish compatibility of every legacy Sonicare head SKU with both handles. Check each head's exact compatibility listing.

Questions shoppers ask

Does the ProtectiveClean 5300 have a Gum Care mode?

Philips lists Gum Care for HX6423/34 and describes it as an extra minute of reduced-power brushing. That description does not establish a clinical benefit.

What heads are listed in the HX6423/34 kit?

Philips lists one G2 Optimal Gum Care head and two W2 Optimal White heads, along with a travel case and charger. Check the current retailer offer for package confirmation.

Does either model have a tested cleaning advantage here?

No. The available sources support a comparison of controls and included accessories, not a matched cleaning or health-outcome result.

Why does Philips use both W2 Optimal White and W2 DiamondClean names?

Philips’ HX6423/34 specification lists two W2 Optimal White heads. Philips’ W2 accessory page also describes that line as W2 DiamondClean and lists HX6423/34 as compatible, so the names are consistent at the family level. The kit specification does not give a separate component number for the two included heads.

Methodology and sources

Compared the exact HX3681/23 and HX6423/34 manufacturer product pages and specifications for handle controls and included items. Recommendations are conditional feature fit only; no measured or clinical winner is inferred.

This comparison used AI-assisted research and writing based on Philips product information; neither toothbrush was hands-on tested.

View 10 sources
  1. 1.Philips Sonicare 4100 Series Sonic electric toothbrush HX3681/23Philips US · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Product title and model code; product feature summary; technical specification link: Exact US product page identifies Sonicare 4100 Series HX3681/23 and documents its pressure sensor and timer features. It contains manufacturer marketing statements that are excluded from comparative efficacy claims.
  2. 2.Philips specification sheet HX3681/23Philips · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Specifications: items included, modes, Clean, 2 intensities High/Low, brush head system, UPC: Exact model sheet identifies HX3681/23 in white and lists one C2 Optimal Plaque Control head, one charger, Clean mode, High/Low intensities and easy click-on heads. It does not specify a wall adapter in the included-items list.
  3. 3.Philips support for Sonicare 4100 Series HX3681/23Philips US · Official support · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Model heading; manuals and documentation section; user manual PDF link: The exact-model US support page identifies HX3681/23 and links a user manual PDF; reviewed to verify that the manual cited here is served from its exact-model support page.
  4. 4.Philips Sonicare 4100 Series user manual PDF linked from HX3681/23 supportPhilips · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Manual: brush modes and use; exact HX3681/23 US support page links this PDF: Opened from the exact HX3681/23 Philips support page. It describes Sonicare handle routines and safe-use instructions. Product-specific mode detail is taken from the exact HX3681/23 spec sheet, not generalized/manual-family wording.
  5. 5.Philips Sonicare ProtectiveClean 5300 Sonic electric toothbrush HX6423/34Philips US · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Exact model heading; three mode descriptions; travel-case summary: Exact US page identifies ProtectiveClean 5300 HX6423/34 and describes Clean, White and Gum Care. Philips says Gum Care adds an extra minute of reduced-power brushing. It separately lists a travel case. Mode benefits are not treated as proof of health or cleaning outcomes.
  6. 6.Philips specification sheet HX6423/34Philips · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Specifications: items included, brush heads, travel case, charger, modes, UPC: Exact ProtectiveClean 5300 model HX6423/34 specification lists one G2 Optimal Gum Care head, two W2 Optimal White heads, one travel case and one charger; it also lists Clean, Gum Care and White modes. The document names black and lists UPC 075020091451.
  7. 7.Philips support for Sonicare ProtectiveClean 5300 HX6423/34Philips US · Official support · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Model heading; manuals and documentation section; user manual PDF link: The exact-model US support page identifies ProtectiveClean 5300 HX6423/34 and links the user manual PDF cited here.
  8. 8.Philips Sonicare user manual PDF linked from HX6423/34 supportPhilips · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Manual: brushing modes and routines; exact HX6423/34 US support page links this PDF: Opened from the exact HX6423/34 support page. The manual notes model-dependent mode options and describes White/Gum Care durations; its family-wide language is not used to add unsupported features beyond the exact model sheet.
  9. 9.Philips Sonicare C2 Optimal Plaque Control HX9021/19Philips US · Official specifications · Source checked 2026-09-28 00:25 UTC
    Evidence used on this page
    • Exact C2 head accessory product page: click-on and BrushSync mode pairing: Exact C2 head page describes click-on attachment and BrushSync mode pairing. It does not establish universal legacy-head compatibility or compatibility with both compared handles.
  10. 10.Philips Sonicare W2 Optimal White Standard sonic toothbrush heads HX6063/96Philips US · Official specifications · Source checked 2026-09-28 00:39 UTC
    Evidence used on this page
    • Page title/model lines 163-165; description calls the item W2 DiamondClean lines 169-171; compatible-products section lists HX6423/34.: The Philips US accessory page is titled W2 Optimal White, model HX6063/96, describes the same item as W2 DiamondClean, and lists the assigned ProtectiveClean 5300 HX6423/34 among compatible products. This establishes Philips usage of both names for the W2 accessory family; it does not identify a separate component SKU for the two heads in the HX6423/34 kit.

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