Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04 price history and forecast - Sonicare HX3681/04
Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04

Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04

Brand:
Sonicare
Model Number:
HX3681/04
UPC:
075020100733
EAN:
0075020100733
Walmart SKU:
302141440
Key Takeaway

Trending downward with a $0.00 move to reach $39.96. Current price runs 0.0% below the 90-day average.

Third-Party Seller Summary

Third-Party Seller Price History Summary
Price Type Price Date
Highest Price
$44.97
Lowest Price
$35.00
Most Recent Price
$36.65
Average Price
$37.35
First Tracked
Last Update

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$44.97
Lowest Price
$29.96
Most Recent Price
$39.96
Average Price
$38.49
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04 since 3/25/2023. The most recent price update was on Jul 18, 2026.

Price Range: Over the past 90 days, the price has ranged from $29.96 (lowest on 9/26/2024) to $44.97 (highest on 8/26/2023). The average price during this period is $38.49.

Current Trend: Walmart.com prices have ranged from $39.96 (Jul 18) to $39.96 (Jul 18) over the past 90 days. Current price is close to the 90-day average of $39.96.

Customer Insights: Rated 4.4/5 from 7279 reviews.

Customer Reviews

7279 reviews

Customer Reviews

4.4
Based on 7279 reviews
5
5193
4
980
3
412
2
234
1
460
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Showing 10 of 7279 reviews

Great features

NanSea June 12, 2026

[This review was collected as part of a promotion.] I am very satisfied with my sonic electric toothbrush. It does a great job of cleaning my teeth. I really like the way it lets me know that I need to move from one quadrant of my mouth to another every 30 seconds as well as how it shuts itself off after two minutes. It has two levels of intensity, but I find that the lower level works just fine and isn't as loud. I also love the pink color. So happy with my purchase!

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Sleek and strong

SMaM70 June 13, 2026

[This review was collected as part of a promotion.] I really like this sonic electric toothbrush. It took a bit for me to get used to the intensity as it increases automatically. The handle is comfortable. I like the size and shape of the brush head. I like the sleek look of the toothbrush. It looks nice on my sink's countertop. The only thing I don't like is when I unknowingly touch the toothbrush with my upper/lower teeth as I'm brushing the opposite side. It's rather jarring. I do like the change in rhythm to notify me to move to another section of my teeth.

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terrific toothbrush

theresa78 May 26, 2026

[This review was collected as part of a promotion.] Replaced my old Oral B electric toothbrush. This one is quiet, easy to use and does a better job removing stains. I also appreciate the sleek profile and small recharge base. Easy to keep clean. Love it!

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JohnnyDS60 June 5, 2026

[This review was collected as part of a promotion.] I travel. And one charge lasts about 2 weeks. The shape is comfortable in my hand and the control button is easy to use. I like the brushing timer and that I can choose to use it or cancel it. And the unit, as a whole, does a great and comfortable job of cleaning my teeth. This is reflected when my hygienist doesn't need much time to do my semi-annual cleaning.

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Leighten May 12, 2026

I think it should have came with at least one more brush head for the price. Charging seems to take a little bit longer than informed but it holds charge decently. I wasnt able to tell woth the sensor as far as it suggests. The bristles seem to also come apart rather easily

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Good Brush

Cowboyg June 29, 2026

[This review was collected as part of a promotion.] This is my 3rd sonicare toothbrush. They all do a good job of brushing. There are 2 reasons I took away a star from this one. 1- it's narrower making it more difficult to stand on the counter. 2- the 30 second signals during brushing do not seem as strong in intensity nor volume as in past models.

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Tickles

Anne November 26, 2025

I ordered this by accident. I thought I was ordering a water flosser – and it turned out to be a toothbrush. I decided to try it out anyway. It does work. It does get my teeth cleaner than the manual toothbrush. I don’t like the sound it makes. I feel that must be part of the function, given that it’s called “sonic care”. I find this sound very irritating. It tickles my mouth. It makes my salivary glands go into overdrive. I definitely have to be over the sink when using it because so much saliva comes out of my mouth. I ended up with toothpaste all over my nightgown. It has some kind of a timer to tell you how long to brush each part of your mouth. I haven’t figured that part out yet. I’m not sure I always hear the timer. I’m continuing to use it because I think it’s good for me. However, I’m not having fun with it. I find it really annoying. I haven’t really figured out the charging business. Its charger is also its stand. It says it has a two week battery life, but I am not sure how you would do that, given that I don’t see where else to put it other on than on top of its stand.

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I don't care for this toothbrush at all.

TexasRose July 4, 2026

[This review was collected as part of a promotion.] It is not even close to my Sonicare Series 5 toothbrush I had for years. It still worked, but I couldn't find the replacement heads anymore; thus, I had to purchase a new toothbrush. Very disappointed.

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Super weak

Anon September 5, 2025

I bought this to replace my last sonicare bought from Costco close to 10 years ago. This toothbrush was insanely underpowered compared to that one.. this one barely vibrated at all. I think the battery powered toothbrushes that you can buy at the dollar tree have more sonic vibration than this exact model of sonicare.. honestly I don’t know how they are selling this. It doesn’t seem to work at all. I didn’t know that all sonicares weren’t created equally, and now I can tell that the price point must make a major difference in the power. I returned this one and I would tell you it’s not worth buying.

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DougieC July 30, 2025

This was purchased to replace an older Sonic. The newer type lightweight charging base is so light and flimsy, there's no way to use it without it flopping over all the time unless you stick it to the counter. TOTALLY UNACCEPTABLE! Returned it for a refund as soon as I unboxed it. Gimme a break! Designers should be put out to pasture or otherwise disposed of. I will never buy a unit with this charger no matter how many companies opt to use that type charger. Who wants a wireless charger that causes the unit to be fall-over prone??? ^%23@%26%$%$%23 PLEASE!!!

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Price History

Historical price data graph for Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

6 records

Walmart.com prices have ranged from $39.96 (Jul 18) to $39.96 (Jul 18) over the past 90 days. Current price is close to the 90-day average of $39.96.

Walmart.com price history for Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04 showing recent price changes over the past 90 days
Date Price Change % Change
$39.96 $+0.00 +0.0%
$39.96 $+0.00 +0.0%
$39.96 $+0.00 +0.0%
$39.96 $+0.00 +0.0%
$39.96 $+0.00 +0.0%
$39.96

Third-Party Seller Pricing

100 records

Third-Party Sellers prices have ranged from $35.00 (May 19) to $37.98 (Apr 22) over the past 90 days. Current price is close to the 90-day average of $36.64.

Third-party seller price history for Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04 showing recent price changes
Date Price Change % Change
$36.65 $+0.49 +1.4%
$36.16 $-0.54 -1.5%
$36.70 $+0.05 +0.1%
$36.65 $-0.05 -0.1%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.05 +0.1%
$36.65 $+0.00 +0.0%
$36.65 $+0.00 +0.0%
$36.65 $-0.05 -0.1%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+1.06 +3.0%
$35.64 $-0.25 -0.7%
$35.89 $+0.00 +0.0%
$35.89 $+0.50 +1.4%
$35.39 $-0.50 -1.4%
$35.89 $+0.00 +0.0%
$35.89 $+0.50 +1.4%
$35.39 $-0.49 -1.4%
$35.88 $+0.00 +0.0%
$35.88 $+0.00 +0.0%
$35.88 $+0.00 +0.0%
$35.88 $-0.82 -2.2%
$36.70 $+0.82 +2.3%
$35.88 $+0.00 +0.0%
$35.88 $+0.00 +0.0%
$35.88 $+0.00 +0.0%
$35.88 $+0.00 +0.0%
$35.88 $+0.00 +0.0%
$35.88 $-0.82 -2.2%
$36.70 $+0.00 +0.0%
$36.70 $+0.00 +0.0%
$36.70 $+1.26 +3.6%
$35.44 $+0.00 +0.0%
$35.44 $+0.00 +0.0%
$35.44 $+0.00 +0.0%
$35.44 $+0.00 +0.0%
$35.44 $-1.26 -3.4%
$36.70 $+0.75 +2.1%
$35.95 $+0.00 +0.0%
$35.95 $-0.75 -2.0%
$36.70 $+0.75 +2.1%
$35.95 $+0.00 +0.0%
$35.95 $-0.55 -1.5%
$36.50 $+0.00 +0.0%
$36.50 $-0.20 -0.5%
$36.70 $+0.00 +0.0%
$36.70 $+0.12 +0.3%
$36.58 $+0.00 +0.0%
$36.58 $+0.08 +0.2%
$36.50 $-0.08 -0.2%
$36.58 $-0.07 -0.2%
$36.65 $-0.05 -0.1%
$36.70 $-0.08 -0.2%
$36.78 $+0.03 +0.1%
$36.75 $-0.03 -0.1%
$36.78 $+0.00 +0.0%
$36.78 $+0.00 +0.0%
$36.78 $+0.00 +0.0%
$36.78 $+0.00 +0.0%
$36.78 $+0.20 +0.5%
$36.58 $-0.30 -0.8%
$36.88 $+1.88 +5.4%
$35.00 $-1.88 -5.1%
$36.88 $-0.22 -0.6%
$37.10 $+0.00 +0.0%
$37.10 $+0.00 +0.0%
$37.10 $+0.22 +0.6%
$36.88 $+0.00 +0.0%
$36.88 $-0.32 -0.9%
$37.20 $+0.10 +0.3%
$37.10 $+0.00 +0.0%
$37.10 $-0.35 -0.9%
$37.45 $+0.06 +0.2%
$37.39 $-0.06 -0.2%
$37.45 $+0.06 +0.2%
$37.39 $-0.40 -1.1%
$37.79 $+0.00 +0.0%
$37.79 $+0.30 +0.8%
$37.49 $+0.04 +0.1%
$37.45 $+0.00 +0.0%
$37.45 $-0.04 -0.1%
$37.49 $-0.30 -0.8%
$37.79 $-0.09 -0.2%
$37.88 $+0.00 +0.0%
$37.88 $-0.07 -0.2%
$37.95 $+0.00 +0.0%
$37.95 $+0.00 +0.0%
$37.95 $-0.03 -0.1%
$37.98 $+0.00 +0.0%
$37.98

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