• Philips Sonicare DiamondClean 9000 Electric Toothbrush White HX9912-63

    $367
    $52 (12%) off RRP of $419
    $52 (12%) off RRP of $419

    Philips Sonicare DiamondClean 9000 Electric Toothbrush White HX9912-63

    $367
    $52 (12%) off RRP of $419
    $52 (12%) off RRP of $419
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    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    The Philips Sonicare DiamondClean 9000 (HX9912/63) is the pinnacle of sonic toothbrush design, delivering exceptional cleaning power, advanced personalisation, and elegant style. Engineered to remove up to 20x more plaque than a manual toothbrush, it comes equipped with the A3 Premium All-in-One brush head, designed to lift up to 100% more stains in under two days and improve gum health up to 15x in just two weeks — all without switching heads.

    Its four custom modes (Clean, White+, Gum Health, Deep Clean+) and three intensity settings let you tailor every brushing session to your needs, whether you’re chasing that perfect white smile or prioritising deep gum care. The built-in smart sensors and Bluetooth connectivity sync with the Sonicare app to track your brushing, providing personalised guidance, real-time feedback, and progress reports that help you build healthier habits between dental checkups.

    The DiamondClean 9000 doesn’t just clean — it transforms your brushing experience. A gentle pressure sensor protects your gums, while smart brush head recognition and BrushSync ensure you’re always brushing at peak performance. Wrapped in a sleek, modern design and paired with a convenient travel case, it’s the ultimate oral care companion for a whiter, healthier smile that lasts.
    A3 Premium All-in-One Brush Head

    Angled bristles remove up to 20x more plaque, triangular tips lift 100% more stains in two days, and longer bristles clean deep for gums that are 15x healthier in just two weeks — all without swapping heads.

    Four Cleaning Modes + Three Intensities

    Personalise your brushing with Clean, White+, Gum Health, and Deep Clean+ modes, paired with adjustable intensity settings that let you choose a powerful deep clean or a gentle touch for sensitive areas.

    Connected Smart App + Progress Reports

    Bluetooth connectivity links to the Sonicare app, providing personalised brushing feedback, habit coaching, and progress reports that help you improve technique and track your oral health journey over time.

    Smart Sensors + BrushSync Technology

    Built-in pressure sensors protect your gums by alerting you when brushing too hard, while BrushSync recognises brush heads, adjusts settings accordingly, and reminds you when it’s time to replace.

    Specifications & manuals

    key Specifications
    Brand
    Philips
    Model Number
    HX9912-63
    Height (mm)
    251 mm
    Width (mm)
    174 mm
    Depth (mm)
    111 mm
    Weight (kg)
    1.1 kg
    Finish Colour
    White
    Finish Colour Description
    White
    Accessories included
    1x DiamondClean 9000, 1x A3 Premium All-in-One, Travel case, USB charging travel case, Glass charger, Charger base
    warranty
    Manufacturer Warranty
    2 Years
    other Features
    Features
    • A3 Premium All-in-One Brush Head: Removes up to 20x more plaque, 100% more stains, and improves gum health up to 15x, delivering complete care without changing brush heads.
    • Four Cleaning Modes + Three Intensities: Offers Clean, White+, Gum Health, and Deep Clean+ modes, plus adjustable intensity levels for a personalised brushing experience.
    • Connected Smart App + Progress Reports: Bluetooth-enabled app provides real-time feedback, personalised coaching, and progress tracking to improve brushing habits.
    • Smart Sensors + BrushSync Technology: Detects excessive pressure, adjusts settings, and tracks brush head usage, ensuring safe, effective, and optimised cleaning every time.
    • Advanced Sonic Technology: Delivers 62,000 brush strokes per minute, creating dynamic fluid action that drives water between teeth for an exceptional clean.
    • Elegant, Ergonomic Design: Features a sleek, premium handle with an intuitive interface, blending top-tier performance with stylish aesthetics.
    • Travel-Friendly Case: Includes a premium travel case, allowing you to maintain your brushing routine and oral care wherever life takes you.
    • Long Battery Life: Rechargeable lithium-ion battery lasts up to two weeks per charge, offering convenience and freedom for home or travel use.
    • Healthier, Whiter Smile: Regular use not only cleans teeth but dramatically enhances brightness, freshness, and overall oral health.
    country of Origin
    Origin
    China

    Reviews

    Rating snapshot

    5
    72
    4
    15
    3
    3
    2
    5
    1
    3

    Average customer rating

    Overall
    4.5

    Appliances Online's customer reviews are independently managed by Bazaarvoice, ensuring their accuracy and honesty. Vouchers are sometimes offered to verified buyers in exchange for their unbiased review.

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    What customers say
    Generated by BazaarVoice HarmonyAI using customers reviews

    The electric toothbrush provides an effective and customizable cleaning experience, leaving teeth feeling clean and smooth. It is gentle on gums and has convenient features like wireless charging and a connected app. However, some users report durability issues, and the app has limitations. While the toothbrush offers a superior cleaning performance, the high price point may not justify the benefits for all users given the potential long-term reliability concerns.

    Pros
    Cons
    1-3 of 98 reviews
    Bowling Mentor2026-03-04
    This thing is great!
    [This review was collected as part of a promotion.] This toothbrush is amazing. It’s like going to the dentist every day!
    Toothy1232026-01-12
    Sonicare toothbrush
    this is a replacement & already the noise has increased & it seems as though it will break like the original.
    Andii Stav2025-11-15
    The absolute best brand and Tooth brush
    OMG This is the ULTIMATE TOOTH BRUSH worth every cent I paid . If you value your teeth like I do you should be using the Diamond Clean 9000!!!! Every time I brush my teeth they feel so clean like when I visit the dentist. I have white teeth with NO stains !! Bonus - 3 yr warranty !

    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).
    So impressed with everything about Appliances Online
    Barbara, Daleys Point, NSW
    This company gets better with age
    Lesley,
    The Appliances Online team were great and we know where we'll be buying
    Errol and Sue,

    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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