£280.43

Philips Sonicare DiamondClean 9900 Prestige Electric Toothbrush, with SenseIQ Technology and App, 5 Brushing Modes, 3 Intensity Levels, Charging Travel Case, Black, Model HX9992/43

Black, HX9992/43

Price data last checked 85 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

This is the most expensive it has ever been. Walk away.

£280 today · previous high £280 · all-time low £250

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 6 days • 6 data points (No recent data available)

Historical
Generating forecast...
£280.43 £246.95 £254.25 £261.56 £268.86 £276.17 £283.47 13 March 2026 14 March 2026 15 March 2026 16 March 2026 18 March 2026

Price Distribution

Price distribution over 6 days • 2 price levels

Days at Price
Current Price
4 days 2 days · current 0 1 2 3 4 £250 £280 Days at Price

Price Analysis

Most common price: £250 (4 days, 66.7%)

Price range: £250 - £280

Price levels: 2 different prices over 6 days

Description

Philips Sonicare DiamondClean Smart 9900 Prestige electric toothbrush provides complete and efficient oral care, removing up to 20x more plaque¹, providing up to 15x healthier gums in 2 weeks² and removing up to 100% more stains¹ in less than 2 days. High-performance A3 Premium All-in-One brush heads help you focus on all areas of your oral health, while SenseIQ senses your brushing style and adapts to your brushing in real time, helping to protect your teeth and gums. There are 5 brushing modes: Clean mode for daily cleaning, White+ for stain removal, Gum Health for gentle yet effective cleaning of the gums, Deep Clean for a refreshing, thorough clean and Sensitive for sensitive gums. There are also 3 intensity levels to choose from. The Philips Sonicare DiamondClean Prestige 9900 also features SenseIQ technology that senses pressure, motion, coverage and more up to 100 times per second. It then adapts the intensity if you push too hard. The intelligence of SenseIQ takes the guesswork out of brushing, so you can experience effortless care and better brushing over time. The built-in Philips Sonicare light ring pressure sensor lets you know if you’re pressing too hard. Advanced Sonic Technology provides gentle yet effective cleaning, pulsing fluid between teeth and along the gumline with a cleaning power of 62,000 bristle movements per minute. By connecting to the Philips Sonicare app, you will be able to receive personalised brushing guidance to maintain and improve your brushing habits. The app lets you know when you’ve achieved a thorough clean and coaches you to be a better, more mindful brusher. The innovative BrushSync™ technology will let you know when it’s time to change your brush head. Philips Sonicare DiamondClean Smart 9900 Prestige works perfectly as a travel electric toothbrush thanks to the USB charging travel case. With regular use, the battery will last two weeks on a single charge (based on two periods of two-minute brushings per day). ¹ vs. a manual toothbrush ² in Clean mode vs. a manual toothbrush Packaging may vary. Safety Warning Keep the charging base away from children under 3 years old to avoid choking hazard.

Key Features

Advanced sonic toothbrush for improved oral health: same brushing, now 20x more effective¹, up to 15x healthier gums in 2 weeks², and remove up to 100% more stains¹ in less than 2 days

SenseIQ technology: Automatically adapts to your brushing behavior by decreasing the intensity when you press too hard to protect your teeth and gums

Real-time feedback: The light ring on the end of your handle will flash if you apply too much pressure, gently reminding you to reduce pressure, helping protect your teeth and gums

Personalised guidance: connect your electric toothbrush to the Philips Sonicare app and receive personalised brushing guidance and coverage feedback to maintain and improve your brushing habits

#1 dental professional recommended sonic toothbrush brand worldwide

The set includes: 1x DiamondClean Prestige 9900 sonic electric toothbrush, 4x A3 Premium All-in-One brush heads, 1x charging travel case, 1x charging stand. Packaging may vary.

Product Specifications

Brand
Philips
Colour
Black
Size
1 Count (pack Of 1)
Format
Personal Care
Domain
Amazon UK
Release Date
06 November 2024
Listed Since
02 April 2025

Barcode

No barcode data available

Similar Products You Might Like

Philips Sonicare 6100 Series Electric Toothbrush - Next-Generation Technology, Pressure Sensor, 6 Brushing Settings, SmarTimer, BrushPacer, 21-Day Runtime, Travel Case, Black, Model HX7401/12
99% match

Philips Sonicare 6100 Series Electric Toothbrush - Next-Generation Technology, Pressure Sensor, 6 Brushing Settings, SmarTimer, BrushPacer, 21-Day Runtime, Travel Case, Black, Model HX7401/12

Philips

£249.99 02 Apr 2026
Philips Sonicare 4000 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, Black, HX4044/52, [New]
98% match

Philips Sonicare 4000 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, Black, HX4044/52, [New]

Philips

£104.99 18 Feb 2026
Philips Sonicare 4100 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, Forest Green, HX4042/46, [New]
98% match

Philips Sonicare 4100 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, Forest Green, HX4042/46, [New]

Philips

£101.00 12 Apr 2026
Philips Sonicare 6100 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 6 Brushing Settings, SmarTimer, BrushPacer, 21-Day Runtime, Travel Case, Navy Blue, HX7403/07
98% match

Philips Sonicare 6100 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 6 Brushing Settings, SmarTimer, BrushPacer, 21-Day Runtime, Travel Case, Navy Blue, HX7403/07

Philips

£289.99 19 Apr 2026
Philips Sonicare 4000 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, White, HX4044/41, [New]
98% match

Philips Sonicare 4000 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, White, HX4044/41, [New]

Philips

£104.99 08 Mar 2026
BarberBoss Electric Toothbrush for Adults - Features 5 Cleaning Modes, Includes 6 Toothbrush Heads, Enhanced with Pressure Sensor, Smart Timer, and Travel Case, Model QR-7536 (White)
98% match

BarberBoss Electric Toothbrush for Adults - Features 5 Cleaning Modes, Includes 6 Toothbrush Heads, Enhanced with Pressure Sensor, Smart Timer, and Travel Case, Model QR-7536 (White)

BARBERBOSS

£26.99 24 Feb 2026
Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 3 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, Travel Case, White, HX4034/21, [New]
98% match

Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 3 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, Travel Case, White, HX4034/21, [New]

Philips

£94.99 02 Apr 2026
Oclean X Series Pro Elite Premium Set, Ultra-Quiet Powerful Sonic Electric Toothbrush Adults w Smart Screen, Wireless Charge for 35 Days, 4 Modes, 6 Replacement Heads & Travel Case - Black
98% match

Oclean X Series Pro Elite Premium Set, Ultra-Quiet Powerful Sonic Electric Toothbrush Adults w Smart Screen, Wireless Charge for 35 Days, 4 Modes, 6 Replacement Heads & Travel Case - Black

Oclean

Out of Stock 17 Mar 2026
Philips Sonicare 7100 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 12 Brushing Settings, 21-Day Runtime, Charging Travel Case, White & Black, 2 Pack, HX7429/04
98% match

Philips Sonicare 7100 Series Electric Toothbrush - Next-Generation Sonicare Technology, Pressure Sensor, 12 Brushing Settings, 21-Day Runtime, Charging Travel Case, White & Black, 2 Pack, HX7429/04

Philips

£199.99 17 Apr 2026
Oclean X Series Pro Elite, Ultra-Quiet Powerful Sonic Electric Toothbrush Adults w Smart Screen, 8 Areas Tracking, Wireless Charge for 35 Days, 4 Modes, Wall Mounted, Eco-Friendly Packaging - Black
98% match

Oclean X Series Pro Elite, Ultra-Quiet Powerful Sonic Electric Toothbrush Adults w Smart Screen, 8 Areas Tracking, Wireless Charge for 35 Days, 4 Modes, Wall Mounted, Eco-Friendly Packaging - Black

Oclean

£49.16 29 Jan 2026
Philips Sonicare 2000 Series Electric Toothbrush - Sonic Toothbrush with 2 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, White, Model HX4021/01, [New]
98% match

Philips Sonicare 2000 Series Electric Toothbrush - Sonic Toothbrush with 2 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, White, Model HX4021/01, [New]

Philips

£59.99 22 Mar 2026
OasiSmile Sonic Electric Toothbrush - 42000 VPM Powerful Deep Clean, Rechargeable Toothbrush with 6 Brush Heads, 120 Days Long Battery, IPX7 Waterproof with 2-Min Timer, Perfect for Home & Travel
98% match

OasiSmile Sonic Electric Toothbrush - 42000 VPM Powerful Deep Clean, Rechargeable Toothbrush with 6 Brush Heads, 120 Days Long Battery, IPX7 Waterproof with 2-Min Timer, Perfect for Home & Travel

OasiSmile

Out of Stock 10 Feb 2026
Philips Sonicare 4000 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, Marine Blue, HX4046/48, [New]
98% match

Philips Sonicare 4000 Series Electric Toothbrush - Sonic Toothbrush with Pressure Sensor, 4 Brushing Settings, EasyStart, SmarTimer, 21-Day Runtime, Travel Case, Marine Blue, HX4046/48, [New]

Philips

£129.99 27 Mar 2026
7AM2M Sonic Electric Toothbrush - 5 Modes, 90-Day Battery, 6 Heads
98% match

7AM2M Sonic Electric Toothbrush - 5 Modes, 90-Day Battery, 6 Heads

7AM2M

£15.99 10 Feb 2026
2 Pack Sonic Electric Toothbrush for Adults and Kids - Sonic Toothbrush with 10 Toothbrush Heads (2 Types), 90 Days Battery Life, 50,000 VPM, 5 Cleaning Modes, Travel Case, 2 Minute Timer
98% match

2 Pack Sonic Electric Toothbrush for Adults and Kids - Sonic Toothbrush with 10 Toothbrush Heads (2 Types), 90 Days Battery Life, 50,000 VPM, 5 Cleaning Modes, Travel Case, 2 Minute Timer

YTEATH PRO

£35.90 06 Feb 2026
Philips Sonicare DiamondClean 9000 Electric Toothbrush, Special Edition, Sonic Toothbrush with App, Pressure Sensor, 4 Brushing Modes, 3 Intensity Levels, Charging Stand, Pink, Model HX9911/79
98% match

Philips Sonicare DiamondClean 9000 Electric Toothbrush, Special Edition, Sonic Toothbrush with App, Pressure Sensor, 4 Brushing Modes, 3 Intensity Levels, Charging Stand, Pink, Model HX9911/79

Philips

£149.99 05 Feb 2026
Oclean Sonic Electric Toothbrush Adults X Series Pro Travel Set, Smart Touchscreen, 3 Modes, 84000 VPM, Lasts 30 Days, 2 in 1 Magnetic Charger Wall-Mount, 6 Replacement Heads & Travel Case - Purple
98% match

Oclean Sonic Electric Toothbrush Adults X Series Pro Travel Set, Smart Touchscreen, 3 Modes, 84000 VPM, Lasts 30 Days, 2 in 1 Magnetic Charger Wall-Mount, 6 Replacement Heads & Travel Case - Purple

Oclean

£59.62 23 Feb 2026
Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and 3 Intensity Levels, Black, Model HX9917/89
98% match

Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and 3 Intensity Levels, Black, Model HX9917/89

Philips

£399.99 31 Jan 2026
JTF Sonic Electric Toothbrush with 6 Brush Heads (2 Types) for Adults and Kids, Deep Clean Rechargeable Toothbrush, 5 Modes, 60 Day Battery & Timer, IPX7 Waterproof, Travel Case, Charging Base, Black
98% match

JTF Sonic Electric Toothbrush with 6 Brush Heads (2 Types) for Adults and Kids, Deep Clean Rechargeable Toothbrush, 5 Modes, 60 Day Battery & Timer, IPX7 Waterproof, Travel Case, Charging Base, Black

JTF

£20.99 28 Jan 2026
Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and 3 Intensity Levels, White, Model HX9917/88
98% match

Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and 3 Intensity Levels, White, Model HX9917/88

Philips

£399.99 31 Jan 2026
Philips Sonicare 4100 Electric Toothbrush, Sonic Toothbrush with Two Modes, Pressure Sensor and Timer, Paradise Pink Prismatic, Model HX3689/41
98% match

Philips Sonicare 4100 Electric Toothbrush, Sonic Toothbrush with Two Modes, Pressure Sensor and Timer, Paradise Pink Prismatic, Model HX3689/41

Philips

£34.99 16 Mar 2026
Philips Sonicare DiamondClean Series 9000 Twin Pack Sonic Electric Toothbrushes, Cleaner Teeth and Gums Connected with App, Black and Rose Gold (Model HX9914/61)
98% match

Philips Sonicare DiamondClean Series 9000 Twin Pack Sonic Electric Toothbrushes, Cleaner Teeth and Gums Connected with App, Black and Rose Gold (Model HX9914/61)

Philips

£263.37 31 Jan 2026
Oclean X Pro Digital Electric Toothbrush with 4X Brush Heads & Travel Case, Smart Sonic Toothbrush Kit for Adults, Real-time 8 Areas Tracking with Touch Screen, 3 Modes-Silver
98% match

Oclean X Pro Digital Electric Toothbrush with 4X Brush Heads & Travel Case, Smart Sonic Toothbrush Kit for Adults, Real-time 8 Areas Tracking with Touch Screen, 3 Modes-Silver

Oclean

£86.42 29 Jan 2026
Philips Sonicare 5500 Electric Toothbrush, Sonic Toothbrush with 2 Modes, Pressure Alert, EasyStart, SmarTimer and BrushPacer, Navy, Model HX7113/01 [New Technology]
98% match

Philips Sonicare 5500 Electric Toothbrush, Sonic Toothbrush with 2 Modes, Pressure Alert, EasyStart, SmarTimer and BrushPacer, Navy, Model HX7113/01 [New Technology]

Philips

£209.99 25 Feb 2026