Oral-B Rechargeable Electric Toothbrush, iO Series 9 Genius, Black
4 Replacement Brush Heads, Power Charging Travel Case, Teeth Whitening, Visible Pressure Sensor to Protect Gums, 7 Modes
Price went up recentlyRose from $169.99 to $279.91 on October 9.
at Amazon· sold by Go For a Profit
Above the middle of our record.
Go to Amazon$279.91 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 $264.99. That is $14.92 less than today. It reached $169.99 at least once in that time, and the high was $329.99.
Today's price is $14.92 above its usual $264.99.
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 | $279.91 | $169.99 on Sep 27 | $329.99 on Sep 28 | $264.99 | $245.40 | 23 |
| Sold by Amazon | — | $169.99 on Sep 27 | $329.99 on Sep 28 | — | $241.07 | 23 |
| Third-party sellers | — | $239.95 on Oct 9 | $299.95 on Sep 29 | — | $283.86 | 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
- $109.92 more than the $169.99 it cost on October 2 — 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
- Held for
- 1d
- Their 23-day low
- $169.99
- Checked
- 11h 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.
We earn a commission on purchases. It never affects our rankings.
Tell me when it drops
A notification in this browser when the price falls. No email, no account, nothing to install.
A notification carries a button that stops that alert; blocking notifications for this site in your browser stops them all.
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
- Blackonyx
- Weight
- 1.39 pounds
- Dimensions
- 9.96 × 7.01 × 3.94 inches
- Model
- iO M9.4B2.2A
- Released
- September 2020
Cheaper in Personal care, and what changes
Things we track on the same shelf for at least 10% less than $279.91, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
Philips Sonicare6700 Rechargeable Electric Toothbrush, 3 Brush Head, White$169.99 at Amazon $109.92 lessWeight: 0.96 pounds instead of 1.39 poundsReleased: December 2025 instead of September 2020
Philips Sonicare7300 Rechargeable Electric Toothbrush, 3 Brush Head, Black$199.99 at Amazon $79.92 lessSize: 3 Count (Pack of 1) instead of 1 Count (Pack of 1)Weight: 0.96 pounds instead of 1.39 pounds
Philips SonicareDiamondClean 9300 Electric Toothbrush, 2 Brush Head, Black$223.99 at Amazon $55.92 lessWeight: 2.31 pounds instead of 1.39 poundsDimensions: 9.92 × 6.85 × 4.37 inches instead of 9.96 × 7.01 × 3.94 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 |
|---|---|---|
| · 1d ago | $279.91 | +$39.96 |
| · 1d ago | $239.95 | +$69.96 |
| · 8d ago | $169.99 | −$129.96 |
| · 11d ago | $299.95 | −$30.04 |
| · 12d ago | $329.99 | +$160.00 |
| · 13d ago | $169.99 | −$95.00 |
6 older changes
| When | Price | Change |
|---|---|---|
| · 18d ago | $264.99 | −$34.95 |
| · 19d ago | $299.94 | −$30.05 |
| · 19d ago | $329.99 | +$30.05 |
| · 21d ago | $299.94 | +$29.99 |
| · 22d ago | $269.95 | −$29.99 |
| · 22d ago | $299.94 | first seen |
Others we track in Personal care
See all Personal care prices
Philips SonicareDiamondClean 9500 Electric Toothbrush 3 Brush Heads, Black$279.99 · low $149.961 retailer · 9 recorded prices- Philips SonicareDiamondClean 9300 Electric Toothbrush, 2 Brush Head, Black$223.99 · low $216.991 retailer · 11 recorded prices
- Philips Sonicare7300 Rechargeable Electric Toothbrush, 3 Brush Head, Black$199.99 · low $169.001 retailer · 4 recorded prices
Philips SonicareDiamondClean 9000 Electric Toothbrush Bundle, HX9912/72$399.99 · low $199.941 retailer · 2 recorded prices
Philips Sonicare9900 Prestige Electric Toothbrush, 5 Brush Heads, Blue$429.99 · low $259.961 retailer · 3 recorded prices
Oral-BRechargeable Electric Toothbrush, iO5 Limited Deep Clean & Whiten, 5 Cleaning Modes, Visual Pressure Sensor to Protect Gums, Travel Case, 3 Brush Heads, Black$149.99 · low $99.991 retailer · 3 recorded prices
$279.91
at Amazon · we earn a commission