Philips Sonicare ProtectiveClean 4500 Gum (HX6823/16). Healthier gums. Gently does it. Improve gum health up to 100% compared to a manual toothbrush*, with a built-in pressure sensor that tells you when to ease off.
- Built-in pressure sensor
- 2 cleaning modes
- 1 x BrushSync feature
Editor’s note. The best electric toothbrush I have ever used! My teeth have never felt cleaner. The 2 cleaning modes are just amazing!
What’s in the box: 1 ProtectiveClean Handle · 1 G2 Optimal Gum Care Brush Head · Charger.
Philips 90-day money-back guarantee. Philips offers a 90-day money-back guarantee on eligible NZ purchases of this model (Sonicare ProtectiveClean). See Philips NZ terms.
Healthier gums
Improves gum health by up to 100%*. Densely packed, high-quality bristles remove plaque along the gumline, and the curved power tip reaches the back teeth.
Safe & gentle on sensitive areas, orthodontics & dental work. Suitable for braces, fillings, crowns and veneers, and helps prevent cavities.
Philips 90-day money-back guarantee
Philips New Zealand offers a 90-day money-back guarantee on eligible products, including the Sonicare ProtectiveClean (HX6823/16), bought from an NZ retail or online store between 1 Jan 2025 and 31 Dec 2026.
- How to claim: use it for at least 30 days. If you’re not satisfied, submit Philips’ online claim form within 90 days of purchase, then post the product back to Philips in its original packaging with your Claim ID.
- Key conditions: NZ residents aged 18+. Keep your receipt and the original packaging. You pay return postage, and refunds go by bank transfer in about 3–4 weeks. Accessories, trade seconds and auction-site purchases are excluded. Claims close 30 April 2027.
- Your rights under the Consumer Guarantees Act aren’t affected.
Cleaning modes and sonic technology
Clean and gum care mode. Clean mode for exceptional everyday cleaning; Gum Care mode adds an extra minute of reduced-power brushing to gently massage your gums.
Two modes, Two intensity settings. Choose the mode that suits your routine.
Philips Sonicare's advanced sonic technology. Up to 62,000 brush movements per minute pulse water between teeth while the bristles break up plaque and sweep it away.
Smart sensors: pressure and BrushSync
Lets you know when you're pressing too hard. The handle gently pulses to remind you to ease off if you brush too hard.
Connects smart brush handle and smart brush heads. A microchip pairs the smart handle with your smart brush head to enable replacement reminders.
Always know when to replace your brush heads. BrushSync tracks how long and how hard you brush; a light and short beep tell you when to replace the head.
Timers and easy start
Encouragement to brush thoroughly. QuadPacer signals when to move to the next part of your mouth, and SmarTimer tells you when you’ve brushed the recommended two minutes.
A great way to get used to your new toothbrush. The easy-start program gradually increases brushing power over your first 14 uses.
See it up close


Full specs
- Model: HX6823/16 · Sonicare ProtectiveClean 4500 · Colour: light blue
- Modes: Clean and Gum Care
- Speed: up to 62,000 brush movements/min
- Sensors: pressure sensor · BrushSync replacement reminder
- Timer: QuadPacer and SmarTimer · easy-start program (first 14 uses)
- Battery: rechargeable Li-ion · up to 2 weeks per charge · battery indicator
- Brush heads: easy click-on (G2 Optimal Gum Care included)
- Warranty: 2-year limited warranty
FAQ
Genuine Philips? Yes — HX6823/16 from Get a Cut NZ.
Is it safe with braces? Yes — Philips says it is suitable for braces, fillings, crowns and veneers.
* Compared to a manual toothbrush (Philips claim, philips.co.nz HX6823/16).







