• Philips Sonicare ProtectiveClean Gum Health Electric Toothbrush Light blue HX6823-16

    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    The Philips Sonicare ProtectiveClean 4500 (HX6823/16) delivers an exceptional balance of powerful cleaning and gentle care, designed specifically to improve gum health by up to 100% compared to a manual toothbrush. With two brushing modes — Clean and Gum Care — it lets you personalise your routine, whether you’re focusing on plaque removal or giving your gums some extra attention.

    The ProtectiveClean 4500 is equipped with a smart Pressure Sensor that alerts you when brushing too hard, protecting sensitive gums and delicate dental work like braces, crowns, or veneers. Its densely packed, high-quality bristles target plaque effectively, while the specially curved power tip ensures even those hard-to-reach back molars get a thorough clean.

    At the heart of this toothbrush is Philips Sonicare’s advanced sonic technology, delivering an astonishing 62,000 brush strokes per minute that pulse fluid between your teeth and along the gumline, breaking up plaque and leaving your mouth feeling exceptionally fresh. With the added BrushSync feature, you’ll always know when it’s time to replace your brush head, keeping your brushing performance at its peak.

    Combined with a long-lasting rechargeable battery and sleek, ergonomic design, the ProtectiveClean 4500 offers a premium brushing experience that elevates your daily oral care routine.
    Up to 100% Better Gum Health

    Specially engineered bristles gently yet powerfully clean along the gumline, removing plaque and improving gum health up to twice as effectively as a manual toothbrush — perfect for reducing inflammation and supporting long-term oral health.

    Two Personalised Brushing Modes

    Choose from Clean mode for everyday plaque removal or Gum Care mode, which adds an extra minute of low-power brushing to gently massage gums and enhance gum health, delivering a fully customisable brushing experience.

    Built-in Pressure Sensor

    Smart feedback system monitors your brushing pressure and provides real-time alerts when you’re pressing too hard, helping you maintain a gentle touch to protect sensitive gums, orthodontic appliances, and dental restorations.

    Advanced Sonic Technology + BrushSync

    Generates up to 62,000 dynamic brush strokes per minute, creating fluid action that pulses water deep between teeth, while BrushSync technology tracks brush head wear and signals when it’s time for a replacement.

    Specifications & manuals

    key Specifications
    Brand
    Philips
    Model Number
    HX6823-16
    Height (mm)
    237 mm
    Width (mm)
    110 mm
    Depth (mm)
    65 mm
    Weight (kg)
    .4 kg
    Finish Colour
    Blue
    Finish Colour Description
    Light Blue
    Accessories included
    1x ProtectiveClean, 1x G2 Optimal Gum Care, Charger
    Notes
    Items included: Handle, ProtectiveClean Brush heads, G2 Optimal Gum Care, Charger
    warranty
    Manufacturer Warranty
    2 Years
    Use
    Not intended or designed for commercial use.
    other Features
    Features
    • Up to 100% Better Gum Health: Gently removes plaque along the gumline, improving gum health twice as effectively as manual brushing and helping reduce inflammation.
    • Two Personalised Brushing Modes: Offers Clean mode for everyday cleaning and Gum Care mode with extra-low power for gentle gum massage and enhanced care.
    • Built-in Pressure Sensor: Monitors brushing force and alerts you when applying too much pressure, protecting gums and sensitive dental work from damage.
    • Advanced Sonic Technology + BrushSync: Delivers 62,000 brush movements per minute, sweeping away plaque, with BrushSync tracking brush head usage for optimal performance.
    • Safe for Orthodontic Work: Gentle yet thorough cleaning designed for use with braces, crowns, fillings, and veneers, keeping all dental work safe and protected.
    • Two-Week Battery Life: Rechargeable lithium-ion battery provides up to two weeks of brushing on a full charge, perfect for home use and travel.
    • Ergonomic Design: Slim, lightweight handle fits comfortably in your hand, offering precise control for an effortless brushing experience.
    • Improves Oral Health: Regular use not only cleans teeth but supports healthier gums, fresher breath, and an overall healthier smile.
    country of Origin
    Origin
    China

    Reviews

    Rating snapshot

    5
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    Average customer rating

    Overall
    4.4

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    Pros
    1-3 of 93 reviews
    Patty12019-09-29
    Sonicare protective clean toothbrush
    Have used for almost a month and love it. It has smaller brush which enables me to reach back molars well. Love the timer, perfect
    Anonymous2019-12-24
    Extraordinary
    I have been using Philips Sonicare since two months now and I must say this is something very unique. My teeth are getting cleaner and whiter day by day. Much much better than ordinary brushes. Just love it.
    Anonymous2020-01-20
    Can't go wrong with sonicare toothbrush
    Every time I brush my teeth, it feels really clean just like coming back from the dentist. The brush cycle is 2 mins long and it can go many weeks without charging. And it is beautiful and thoughtful. Starting from the cylindrical charging pod and ending with the ergonomic body shape of the brush.

    Legendary service

    The Appliances Online Net Promoter Score (NPS) is based on feedback from 89,897 people, collected between August 2024 to August 2025. Learn more about the Net Promoter Score (NPS).
    Excellent work!
    Joseph, Edensor Park, NSW
    Prompt delivery, great prices and constant communication
    Richard, Croydon, VIC
    Delivery people are excellent
    Marilyn, Mackenzie, QLD

    Delivery, services & returns

    Appliances Online is all about legendary service. We offer free next business day delivery, free connection, free removal and free recycling, and we even offer Saturday delivery and, in some locations, a Premium Delivery option that allows you to choose your own 2-hour delivery window.

    Questions & answers

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