Philips Sonicare 4100 Rechargeable Electric Toothbrush, 1 Brush Head
Black
at Amazon
#46 by sales rank of the 314 in Personal care
Above the middle of our record.
Go to Amazon$49.96 is above the middle of our record.
The middle price across the 23 days we have watched it, counting the days a limited-time deal was running, was $47.99. That is $1.97 less than today. It reached $47.90 at least once in that time, and the high was $49.96.
Today's price is $1.97 above its usual $47.99.
When the price here has fallen to $48.00 or below — 3 times in our record — it stayed there a median of 9 hours, and at most 9 hours.
This describes the prices we recorded. It is not a forecast of where this one goes next.
Price at AmazonVerified
Price history
One line: the best price any tracked retailer charged, per day.
Price set by a third-party seller, not the retailer itself
sales rank — the line rises as it sells moreShaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| New | $49.96 | $47.90 on Sep 18 | $49.96 on Oct 3 | $47.99 | $48.53 | 23 |
| Sold by Amazon | — | $49.96 on Oct 2 | $49.96 on Oct 2 | — | $49.96 | 9 |
| Third-party sellers | — | $47.90 on Sep 18 | $48.99 on Oct 1 | — | $48.28 | 23 |
Sales events
Next on the calendar: Black Friday, November 27. We keep checking this price through it and report here what it did.
What our record shows
- $1.97 more than the $47.99 it cost on September 19 — this price went up, not down.
- Cheaper than this on 83% of the 23 days we have watched it here.
Computed from our own checks at Amazon as of October 10. No line here uses a price a retailer told us about.
Where to buy
- Held for
- changed today
- Their 23-day low
- $47.90
- Checked
- 2h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
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Tell me when it drops
A notification in this browser when the price falls. No email, no account, nothing to install.
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Other versions of this model
Today the Deep Pink is the cheapest at $48.67, $7.32 less than the Deep Pink + Brush Head Case.
Deep Pinkcheapest$48.67
Blackthis page$49.96
White$49.96
Black + Brush Head Case$55.99
Deep Pink + Brush Head Case$55.99
Amazon’s own price for each, read through their API. Verified
What it is
6 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Size
- 1 Count (Pack of 1)
- Color
- Black
- Weight
- 0.54 pounds
- Dimensions
- 8.66 × 4.29 × 2.48 inches
- Model
- HX3681/24
- Released
- December 2021
Cheaper in Personal care, and what changes
Things we track on the same shelf for at least 10% less than $49.96, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
Philips SonicareC2 Brush Heads, 3-Pack, 9 Month Supply, White$31.96 at Amazon $18.00 lessSize: 1 Count (Pack of 3) instead of 1 Count (Pack of 1)Weight: 0.09 pounds instead of 0.54 pounds
AquasonicBlack Series Ultra Whitening Toothbrush – ADA Accepted Electric Toothbrush- 8 Brush Heads & Travel Case – 40,000 VPM Electric Motor & Wireless Charging - 4 Modes w Smart Timer$39.95 at Amazon $10.01 lessWeight: 0.66 pounds instead of 0.54 poundsDimensions: 8.5 × 3.27 × 2.83 inches instead of 8.66 × 4.29 × 2.48 inches
WahlColor Pro Cordless Rechargeable Hair Clipper & Trimmer, Color Guards$40.49 at Amazon $9.47 lessWeight: 1.4 pounds instead of 0.54 poundsDimensions: 5 × 2 × 1 inches instead of 8.66 × 4.29 × 2.48 inches
Every change we recorded at Amazon
Every row is a price we saw change. We write one only when a price actually moves, so a gap here means the price held.
| When | Price | Change |
|---|---|---|
| · today | $49.96 | +$1.96 |
| · 1d ago | $48.00 | −$1.96 |
| · 2d ago | $49.96 | +$1.96 |
| · 2d ago | $48.00 | −$1.96 |
| · 3d ago | $49.96 | +$1.06 |
| · 4d ago | $48.90 | −$0.09 |
6 older changes
| When | Price | Change |
|---|---|---|
| · 4d ago | $48.99 | −$0.97 |
| · 4d ago | $49.96 | +$1.06 |
| · 6d ago | $48.90 | −$1.06 |
| · 7d ago | $49.96 | +$0.97 |
| · 8d ago | $48.99 | −$0.97 |
| · 8d ago | $49.96 | +$0.97 |
Others we track in Personal care
See all Personal care prices
Philips Sonicare4100 Rechargeable Electric Toothbrush, 1 Brush Head, Black$49.961 retailer · 1 recorded price
Philips Sonicare3300 Rechargeable Electric Toothbrush, 2 Brush Head, White$44.991 retailer · 1 recorded price
BraunSeries 3 3010s Wet & Dry Electric Shaver for Men/Rechargeable Electric Razor, Blue$49.971 retailer · 3 recorded prices
Oral-BPro 1000 Rechargeable Electric Toothbrush, White$49.941 retailer · 1 recorded price
Oral-BPro 1000 Rechargeable Electric Toothbrush, Black$49.94 · low $47.941 retailer · 6 recorded prices
WahlClipper Rechargeable Cord/Cordless Haircutting & Trimming Kit$49.501 retailer · 1 recorded price
$49.96
at Amazon · we earn a commission