Philips Sonicare 4100

Name: Philips Sonicare 4100
Brand: Philips Sonicare
Price: 50 USD
Availability: InStock

Pressure sensor14-day battery · no case~$123 over 3 years

Philips' long-selling 4100 pairs a pressure sensor with two intensity levels and a BrushSync reminder that lights up when the head is due. Philips' newer HX4031 handle is also sold as a 4100, but its own catalog entry describes the box contents as a 3100, so only this HX3681 model is listed here.

Approx. price

~$50

maker's store, not a live price

3-year cost

~$123

11 heads to buy after 1 in the box

Price per head

$6.66

lowest multipack on the maker's store

Battery

14-day battery

maker's figure

Warranty

2 yr

standard, from the maker

Best for: The classic budget Sonicare with a replacement reminder

Pressure sensor and ADA Seal

Pressure sensor (vibration or sound). Philips Sonicare's description: Vibrates the handle and makes a pulsing sound as a reminder to ease off.

No ADA Seal listing found for this model on the ADA’s own product search. That is not a failed test: the Seal is voluntary and makers apply for it product by product.

These are facts about features and listings, not a statement that the brush prevents or treats anything. What a pressure sensor does · What the ADA Seal means

Three years of ownership

Handle: $50
Heads (11 × $6.66): $73.26
Three-year total: ~$123

12 heads over 36 months at Philips Sonicare's stated 3-month interval, less 1 head in the box. Head price: Sonicare SimplyClean 6-pack (HX6016/77), $39.96 on usa.philips.com. How this is worked out

Specifications

Approx. price: ~$50
3-year cost: ~$123 ($50 handle + 11 heads at $6.66)
Type: Sonic
Motion: Sonic (vibrating head)
Pressure sensor: Pressure sensor (vibration or sound): Vibrates the handle and makes a pulsing sound as a reminder to ease off
ADA Seal: No listing found
Timer: 2-minute timer
Quadrant pacer: Yes, every 30 seconds
Modes: 1: Clean
Intensities: 2
Screen: None
App: No
Battery: 14-day battery (Philips spec: operating time 14 days)
Travel case: No
Heads in the box: 1
Head family: Sonicare click-on
Head compatibility: Any Philips Sonicare click-on head (C1 SimplyClean, C2, C3, G3, A3, W); not Philips One heads
Price per head: $6.66 (Sonicare SimplyClean 6-pack (HX6016/77), $39.96 on usa.philips.com)
Replace heads every: 3 months (maker)
Warranty: 2 years
First listed: 2021

Features

Pressure sensor with vibration and pulsing sound
High and Low intensities
BrushSync replacement reminder
QuadPacer and SmarTimer
14-day battery

What it does well

BrushSync reminder lights when the head is due
Two intensities where the 3100 has one
Pressure feedback by vibration and sound, as on the 3100; a visible light waits until the 6500
14 days per charge, matching the DiamondClean 9000 at a quarter of the price

What it gives up

One mode, no travel case and no app, the same bare kit as the $40 3100
No speed figure published for this CTN
Two different handles are sold under the 4100 name, which makes spares shopping confusing

The two lists above are drawn from the maker’s own pages and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.

What owners say

No owner discussion has been read for the Philips Sonicare 4100 yet. This section stays empty until there is something real to put in it.

How it moves

The elongated head vibrates side to side at high frequency; you hold it at the gumline and sweep along the teeth.

Heads: Any Philips Sonicare click-on head (C1 SimplyClean, C2, C3, G3, A3, W); not Philips One heads.

Every sonic brush here

Compare the Philips Sonicare 4100

Where these figures come from

Every figure is the maker’s own, from its US product page, spec sheet or store, and the ADA listing comes from the ADA’s own site. A figure the maker does not publish is left out rather than estimated. The three-year cost, gum-safety and travel chips are worked out from those figures here.