

Price: Amazon lists the Philips Sonicare 4100 at $34.99, about 30% below its $49.96 regular price.
Features: The toothbrush has pressure sensing, SmartTimer, QuadPacer, two intensity levels and an Optimal Plaque Control brush head.
Value: $34.99 is a strong price, although past promotions have reached about $30.
The Philips Sonicare 4100 Electric Toothbrush now has a price of just $34.99 on Amazon in the United States. The deal cuts about 30 percent from its usual price of $49.96. NBC Select updated its deal report on August 16, 2026, and highlighted the Sonicare 4100 as a strong choice at this price. The toothbrush also has more than 16,000 five-star ratings on Amazon, which adds strong buyer feedback to the deal.
The current price makes the Sonicare 4100 far more affordable than many electric toothbrushes from major brands. The deal also places a well-known Sonicare model in the budget range without removing several key features that help support better daily dental care.
Amazon currently lists the Philips Sonicare 4100 at $34.99, which gives the lowest price among the major retailers checked for this deal. Target lists the same model at $39.99, a 20 percent discount from its regular price. Best Buy also lists the toothbrush at $39.99 with a 20 percent discount.
The $34.99 Amazon price therefore stands out as the best current option among these three retailers. The gap may look small, but the extra $5 can matter at this price level. The Amazon deal also sits close to some of the lowest prices seen for this model in past promotions.
The Philips Sonicare 4100 focuses on the basic features that matter most in an electric toothbrush. The model has a pressure sensor that detects excess force during brushing. The sensor can alert the user and can also reduce the vibration when the brush detects too much pressure. That feature can help protect the gums from harsh brushing habits.
The toothbrush also has a two-minute SmartTimer. The timer helps support the standard two-minute brushing period. A QuadPacer divides the mouth into four sections and signals when it is time to move to another area. Together, these tools create a simple routine without the need for a phone app or a complicated control system.
The specific deal version also has two intensity settings. That gives users a choice between a softer feel and a stronger clean. The handle has a slim design that keeps the toothbrush easy to hold. The package also includes an Optimal Plaque Control brush head.
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Battery life adds another useful feature to the Sonicare 4100. Philips lists battery use at up to about two weeks on a full charge, based on normal use. That level of battery life can reduce the need for frequent charging and makes the toothbrush more practical for travel.
Philips also lists a two-year warranty for Sonicare toothbrushes. A warranty does not replace good product care, but it does add some protection after purchase. The combination of battery life and warranty makes the 4100 more suitable for daily use than many basic battery-powered toothbrushes.
The $34.99 price qualifies as a strong deal, although it does not mark the lowest price ever seen for the Sonicare 4100. Past promotions have pushed some 4100 versions to about $30. Slickdeals has tracked a $30 price for certain versions, while NYMag has featured the Sonicare 4100 at $35 in an earlier deal.
That history puts the current $34.99 price in a useful middle ground. The deal does not set a record, yet it still offers a good chance to buy the toothbrush at a clear discount from its normal price. A drop to $30 would offer a better value, but the difference may not justify a long wait for shoppers who need a new electric toothbrush now.
The Sonicare 4100 does not try to compete with premium smart toothbrushes that offer Bluetooth, phone apps, advanced sensors, or several special modes. Instead, the model keeps its focus on core brushing features.
That simpler approach may suit buyers who want an electric toothbrush without extra technology. The pressure sensor, two-minute timer, QuadPacer, two intensity levels, sonic cleaning and two-week battery life cover the main needs for a daily electric toothbrush.
NBC Select has also placed the Sonicare 4100 on its best electric toothbrush list. More than 16,000 five-star Amazon ratings add another strong sign of broad customer interest.
The $35 headline refers to the current U.S. deal. Prices outside the United States can differ sharply. Current India listings show the Sonicare 4100 at about Rs. 6,273 on Amazon.in. A Philips Sonicare 3100 appears at about Rs. 3,495 on Purplle.
That price difference matters for shoppers outside the United States. The $34.99 deal should therefore not serve as a reference for every market. Retail prices can also change without notice, so the final checkout price may differ from the price shown in a deal report.
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The Philips Sonicare 4100 at $34.99 offers a strong balance of price and useful features. The toothbrush brings a pressure sensor, SmartTimer, QuadPacer, two intensity levels, an Optimal Plaque Control brush head, up to about two weeks of battery life and a two-year warranty.
The current price does not represent the absolute lowest price in the model's history, yet $34.99 remains a solid deal. For buyers who want a trusted electric toothbrush with useful core features and no need for smart extras, the Sonicare 4100 stands out as a sensible purchase at this price.
1. How much does the Philips Sonicare 4100 cost now?
Amazon currently lists the Philips Sonicare 4100 at $34.99 in the United States.
2. What features does the Sonicare 4100 have?
The model has a pressure sensor, two-minute SmartTimer, QuadPacer, two intensity settings and an Optimal Plaque Control brush head.
3. How long does the battery last?
Philips lists battery life at up to about two weeks on a full charge.
4. Is $34.99 the lowest price ever?
No. Some past promotions have brought certain Sonicare 4100 versions down to around $30.
5. Does the $35 price apply outside the U.S.?
No. The $34.99 deal refers to the U.S. market, while prices in other countries can differ significantly.