Philips Sonicare 9900 Prestige Electric Toothbrush, 5 Brush Heads

Name: Philips Sonicare 9900 Prestige Electric Toothbrush, 5 Brush Heads, Blue
Brand: Philips Sonicare
Price: 429.99 USD
Availability: InStock

Above the middle of our record.

Blue

$429.99

Price went up recentlyRose from $259.96 to $429.99 on October 8.

at Amazon

Above the middle of our record.

Go to Amazon

Watch this priceCompare

$429.99 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 $259.96. That is $170.03 less than today. It reached $259.96 at least once in that time, and the high was $429.99.

Today's price is $170.03 above its usual $259.96.

The lowest, $259.96 on September 24, was a deal only Prime members could buy at. The lowest anyone could pay was $429.99.

This describes the prices we recorded. It is not a forecast of where this one goes next.

Price at AmazonVerified Oct 10, 7:44 AM UTC

Price history

One line: the best price any tracked retailer charged, per day.

Deal for Prime members only

23 days on record · 2 price changes

sales rank — the line rises as it sells moreShaded stretches are sales, from our calendar.

Use this chart elsewhere:The chart redraws itself as we record new prices.

Prices we recorded ourselves. Usual is the price on the typical day, with limited-time deals left out unless they ran on most of the days we recorded; Average is the mean of every recorded day, deals included, so a gap between the two columns is a record holding an outlier.
Price	Now	Lowest	Highest	Usual	Average	Days recorded
New	$429.99	$259.96 on Sep 24	$429.99 on Sep 18	$259.96	$326.49	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

$170.03 more than the $259.96 it cost on September 24 — this price went up, not down.

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

Amazon$429.99Go

Held for: 2d
Their 23-day low: $259.96
Checked: 5h 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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Which offers

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Other versions of this model

Today the Midnight is the cheapest at $335.02, $94.97 less than the Quartz Black.

Amazon’s own price for each, read through their API. Verified Oct 10, 12:26 AM UTC

What it is

4 attributes, in the retailer’s own words. We record the prices; these we only pass on.

Size: 1 Count (Pack of 1)
Color: Midnight + Brush Heads
Model: BD9002AZ
Released: May 2025

Cheaper in Personal care, and what changes

Things we track on the same shelf for at least 10% less than $429.99, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.