Oral-B iO Series 3 Toothbrush Gets 40% Off in Amazon's Early Prime Day Sale

Amazon is offering a 40 percent discount on the Oral-B iO Deep Clean Series 3 rechargeable electric toothbrush for Prime Members in its early Prime Day sales, a rare price cut on a high-end model ahead of the Big Deals Day event scheduled for Oct. 7 and 8.

The Oral-B iO Series 3 includes a travel case, a charging cord and an extra brush head. It features a built-in two-minute timer that divides brushing into four 30-second segments for each quadrant, and three cleaning modes: daily clean, sensitive and whitening. A smart pressure sensor signals if you brush too hard, and the toothbrush claims up to two weeks of battery life per charge. For the first time in weeks, the model is 40 percent off, and early buyers say the deal stands out among Prime Day electronics discounts since the price rarely dips to this level.

Users consistently praise the cleaning power and convenience of the io3. One reviewer wrote, I literally feel like I’ve gone to the dentist after using this toothbrush, adding that it leaves teeth feeling noticeably cleaner than budget models. Others highlight the long battery life and quiet operation, with several customers noting the travel case’s usefulness for trips. A common theme in reviews is the ease of use and the lack of need for Bluetooth or smart features to achieve a deep-clean sensation.

The sale arrives as Amazon uses Prime Day promotions to drive demand for consumer electronics and health tech ahead of the company’s larger October event. While the io3 is among the higher-priced toothbrushes in the brand’s lineup, supporters say its performance—strong brushing power, four modes and a visible pressure indicator—helps explain why some shoppers view it as a better value at a discounted price.

Industry observers note Prime Day-related discounts can influence consumer sentiment and share-of-wallet for premium grooming devices, particularly when a model rarely goes on sale. The io3’s combination of a long-lasting battery, travel-ready design and the distinct two-minute timer aligns with user preferences for straightforward, doctor-verified features without extraneous connectivity. For shoppers weighing a premium oral-care investment, the current Prime Day pricing could tilt decisions in favor of the io3 over competing models from other brands.

Deal hunters should act quickly, as discounts on this specific Oral-B model are not common and stock levels can change rapidly during Prime Day promotions. The Prime Day buyer window extends through the event dates, with Amazon signaling that additional deals across electronics and home goods will unfold in the days leading to Oct. 7 and 8.