Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The DiamondClean Smart 9300 is Philips Sonicare's top-tier sonic toothbrush. It pairs a fast-vibrating brush head with five cleaning modes, three intensity levels and a pressure sensor that pulses when you press too hard. A location sensor tracks which zones you have brushed and feeds a coaching app over Bluetooth. It suits people who want guided brushing and are willing to pay for the flagship. Rivals like Oral-B's iO series match the app coaching but use a rotating head, and the 9300's brush heads and app are the main running costs to weigh.
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Lowest price we've seen: $199.96 on Nov 14 at Philips. Tracked across 4 stores since Nov 14.
Owners rate the cleaning and the pressure feedback highly and like the guided app. Many say the coaching is a novelty they stopped using, and some find the battery needs charging more often than expected.
The Philips Sonicare DiamondClean Smart 9300 Series is a rechargeable sonic electric toothbrush made for complete oral care. It has an ergonomic design and runs on a built-in rechargeable battery.
It comes with a charge station for recharging.
