Is the DiamondClean 9000 worth it at $104.50?

At $104.50 at eBay as of November 5, 2026, it is a strong value for a brush with a pressure sensor and app coaching. That is well under its usual new price.

How does it compare with the DiamondClean 9900?

The 9900 adds a sense-and-adapt mode and a more premium charging glass. The 9000 keeps the core modes, pressure sensor and app at a lower price.

How long does the battery last per charge?

Philips rates it at about 54 minutes of brushing, roughly two weeks at two minutes twice a day. Heavy use of deep clean mode shortens that.

The brush handle, a charging station, a USB charging travel case and a brush head. Extra heads are sold separately.

Does it work with the Sonicare app?

Yes. It connects over Bluetooth to the Sonicare app for coaching, coverage tracking and progress reports.

Sonicare brushes usually drop during Black Friday and Prime Day sales. The current $104.50 at eBay is already near the low end.

Philips Sonicare DiamondClean 9000 Electric Toothbrush

Q: Where is the Philips Sonicare DiamondClean 9000 Electric Toothbrush cheapest?

At eBay, for $104.50, as of our latest check.

Q: Where can I buy the Philips Sonicare DiamondClean 9000 Electric Toothbrush?

2 stores we checked sell it, including eBay, Amazon.

Best price now

$104.50at eBayVerified

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Philips Sonicare DiamondClean 9000 Electric Toothbrush

The DiamondClean 9000 is Philips Sonicare's upper-mid-range sonic toothbrush, with four cleaning modes, three intensity levels, a vibrating pressure sensor and Bluetooth coaching through the Sonicare app. It comes with a USB charging travel case and a charging station, and carries a 2-year warranty. At $104.50 at eBay as of November 5, 2026, it sits well below its typical new price, which has run closer to $150-$200.