Why doesn't the new 4100 model have a regular plug ? why on gods green earth did they cheap out and put a usb plug in there ??

According to the review in WireCutter (Sept 2022), you can contact SonicCare and receive a free plug adapter. I've just ordered the 4100 on Amazon. I don't have the serial number yet, because the product doesn't arrive until tomorrow, but SonicCare customer service just told me that they would send the free plug adapter once I provide the model number and serial number to them. They confirmed there is no charnge. It will take 7-10 days to receive the plug adapter once I am able to provide them with the serial number. I'll do all of that after the product arrives tomorrow.

Does anybody make a single speed electric toothbrush? I'm so tired of cycling through the speeds

Cycling is the most effective way to brush each quadrant sufficiently.

What is the purpose of having two intensity modes? How do you know when you should use one or the other?

if you have more sensitive teeth and gums you can use the softer mode

What do the green and yellow lights mean? what about the beeping noise after the 2 minute brush? I thought low battery but is it replacement head?

Hi! When the brush head replacement reminder light of Philips Sonicare Toothbrush HX3681/24 lights up amber, kindly replace your brush head.

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Philips Sonicare 4100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Deep Pink, Model HX3681/26

Philips Sonicare 4100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Deep Pink, Model HX3681/26

Product ID: 388125043

Details

Age Range (Description)
Adult
Brand
Philips
Item Firmness Description
Soft
Power Source
Battery
Special Feature
Pressure Timer

⚡Advanced Sonic Tech - 31,000 brush strokes/min

🔋14-day battery life on a single charge

🦷700% better plaque removal vs manual brush

R1870

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🦷 Elevate your smile game with sonic precision and smart care!

LONG LASTING BATTERY - Up to 14 days of cordless freedom on a single USB charge—perfect for busy professionals on the go.
SMART PRESSURE SENSOR - Protect your gums with real-time feedback that pulses when you brush too hard—because gentle is effective.
POWERFUL SONIC CLEANING - Experience 31,000 brush strokes per minute for a deep, professional-level clean that reaches beyond the surface.
OPTIMIZED BRUSHING ROUTINE - Built-in QuadPacer and Smartimer ensure you hit the dentist-recommended 2-minute, 4-zone brushing every time.
BRUSH HEAD REPLACEMENT REMINDER - Stay ahead of oral care with intelligent tracking that alerts you when it’s time to swap your brush head for peak performance.

The Philips Sonicare 4100 Series electric toothbrush combines advanced sonic technology delivering 31,000 brush strokes per minute with a pressure sensor that protects gums, two intensity settings, and smart timers to optimize your brushing routine. Its rechargeable battery lasts up to 14 days per charge, and the brush head replacement reminder ensures maximum plaque removal—up to 700% better than manual brushing. Designed for adults seeking a professional-grade clean with convenience and smart features in a stylish deep pink finish.

Specifications

ASIN	B09LD8VFS1
ASIN	B09LD8VFS1
Age Range Description	Adult
Batteries	1 Lithium Ion batteries required. (included)
Best Sellers Rank	#198 in Health & Household ( See Top 100 in Health & Household ) #1 in Sonic Toothbrushes
Brand Name	Philips Sonicare
Bristle Material	Nylon
Color	Deep Pink
Customer Reviews	4.4 4.4 out of 5 stars (14,224)
Date First Available	December 13, 2021
Global Trade Identification Number	00075020100771
Handle Material	Plastic
Included Components	1 Philips Sonicare 4100 handle, 1 Optimal Plaque Control (C2) brush head, 1 charger
Item Dimensions	2.48 x 4.29 x 8.66 inches
Item Firmness Description	Soft
Item Weight	0.54 Pounds
Item model number	HX3681/26
Manufacturer	Philips Sonicare
Manufacturer	Philips Sonicare
Manufacturer Part Number	HX3681/26
Material Features	Reusable
Model Name	4100 Series
Model Number	HX3681/26
Mount Motion	Vibrate
Number of Items	1
Number of Pieces	1
Number of settings	2
Operation Mode	Automatic
Other Special Features of the Product	Pressure Sensor,Brushing Timer,Rechargeable,Lightweight,Ergonomic
Package Type Name	Box
Power Source	Battery Powered
Product Dimensions	2.48 x 4.29 x 8.66 inches; 8.64 ounces
Reusability	Reusable
Target Audience	Unisex-Adults
Toothbrush Head Shape	Round
UPC	075020100771
Unit Count	1 Count

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