Is the DiamondClean Smart 9500 worth it over the 9300 or 9700?

The 9500 adds the UV sanitizer and four brush heads over the 9300. The 9700 adds a premium case and tongue brush head but brushes similarly. Pick the 9500 if you want the sanitizer; otherwise the 9300 cleans the same.

How long does the battery last?

Philips rates it at 14 days of typical twice-daily brushing. Heavy use of high intensity and the app shortens that.

Does it work with 220V outlets?

Yes. The charger is rated 110-220 V, so it works in most countries with a plug adapter.

One handle, four brush heads (Plaque Control, White, Gum Health and TongueCare+), a charging glass, a USB charging travel case and a wall plug.

The best new price seen is $139.99 at eBay as of November 6, 2026. Prices on this model swing widely around holidays and Prime Day, so compare across the three stores listing it.

No. The brush works fully without it; the app only adds coverage tracking and coaching.

Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer

Q: Where is the Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer cheapest?

At eBay, for $139.99, 48% under what the other stores charge, as of our latest check.

Q: What do buyers say about the Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer?

Rated 4.4 out of 5 from 260 ratings.

Q: Where can I buy the Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer?

3 stores we checked sell it, including eBay, Walmart, Amazon.

Best price now

$139.99at eBayVerified

48% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

What reviewers say

4.4 / 5260 ratings

Rated 4.4 out of 5 from 260 ratings, owners generally praise the cleaning power, gum care and smart coaching. Complaints center on price and the app's usefulness.

What people mention

Cleaning powerPraisedOwners say teeth feel noticeably cleaner than with manual or basic electric brushes.
Pressure sensorPraisedUsers report the sensor helps them stop brushing too hard and improves gum comfort.
AppMixedSome find the coaching useful; others say they stopped using the app after a few weeks.
BatteryPraisedThe claimed two-week runtime holds up for most users on a full charge.
PriceCriticisedBuyers call it expensive, especially the brush heads, which need replacing every few months.
Charging glassMixedThe glass charger looks good but takes up counter space and is awkward to travel with.

About the Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer

Get the ultimate and most complete care with DiamondClean Smart. Eliminate guesswork with real time feedback and personalized coaching so you can improve your technique and achieve 100% confidence in your oral care. It's more than just a toothbrush - it's a complete oral care solution. Featuring Sonic technology, 5 brushing modes and smart brush head mode pairing technology, the Philips Sonicare DiamondClean Smart Rechargeable toothbrush delivers superior plaque removal, gum health and whitening performance. Philips Sonicare DiamondClean Smart goes beyond traditional cleaning to deliver up to 10x more plaque removal*, removes 100% more stains in just 3 days** and improve Gum Health up to 7x in just 2 weeks***. It also features a visual pressure sensor to alert you when you are brushing too hard. Customize your brushing experience using the 5 different modes and 3 intensity settings and know when to replace your brush head via a customized reminder. Its charging glass that can be used for charging or to rinse your mouth after brushing. A USB charging travel is also included to allow you to charge your toothbrush on the go *vs. a manual toothbrush ** vs. a manual toothbrush in white+ mode *** vs. a manual toothbrush in Gum Health mode 1 Connected Sonicare toothbrush handle with 5 modes; 1 Premium Plaque Control brush head; 1 Premium White brush head; 1 Premium Gum Health brush head; 1 TongueCare+ brush head; 1 Charging glass; 1 charging travel case; 1 wall plug

Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer

Best price now

Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush with UV Sanitizer

Best price now

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