Oral-B iO Series 9: Premium smart toothbrush from Procter & Gamble

Responsible: ad hoc news Lifestyle & Consumer Desk. Reviewed prior to publication on June 12, 2026 at 5:32 PM ET. Details in the imprint.

The Oral-B iO Series 9 is Procter & Gamble's flagship smart electric toothbrush for the consumer market, positioned as a premium option with advanced sensors, a quiet magnetic drive, and app-guided coaching. In the US, the iO Series 9 typically sells as a rechargeable handle kit with multiple brush heads and a magnetic charging base, with promotional prices often around $250 depending on retailer and bundle. Oral-B markets the iO line as delivering a smoother feel and more precise control than its older oscillating-rotating designs, targeting users who want dentist-style cleaning and detailed tracking of their brushing habits via smartphone.

What the Oral-B iO Series 9 offers US consumers

The Oral-B iO Series 9 is built around a frictionless magnetic drive that replaces the traditional mechanical gear system found in many earlier Oral-B brushes. According to Oral-B, this magnetic system directs energy to the bristle tips more efficiently, helping the round brush head glide tooth-by-tooth while maintaining oscillating, rotating, and micro-vibrating motions that distinguish the brand's cleaning approach from sonic-only competitors. The round head concept, inherited from professional dental tools, is designed to encompass each tooth and clean along the gumline while minimizing the need for complex brushing techniques.

For everyday use, the iO Series 9 includes a built-in pressure sensor that lights up red when users brush too hard, green when the pressure is optimal, and white when the brush is in standby. This visual cue is intended to protect gums and enamel from overbrushing, a common issue with powerful electric models. The handle also provides a two-minute timer with 30-second quadrant alerts, encouraging users to spend equal time in each section of the mouth, which aligns with standard dentist recommendations for daily brushing.

One of the main differentiators of the iO Series 9 is its connectivity with the Oral-B app, which uses artificial intelligence and position-detection technology to map which areas of the mouth have been brushed. The app can show a live coverage map, prompting users to revisit missed spots and track performance over time, including streaks and brushing scores. This level of feedback is aimed at users who want to turn brushing into a measurable, goal-oriented habit, and it helps parents monitor brushing quality for older children or teens without being in the bathroom with them.

In terms of brushing modes, the iO Series 9 typically offers seven options: Daily Clean, Sensitive, Super Sensitive, Whitening, Gum Care, Intense, and Tongue Clean. These modes adjust the speed and intensity of the oscillations and micro-vibrations so that users can adapt the experience to sensitive gums, whitening routines, or a more powerful deep-clean feel. A color display on the handle allows users to switch modes, view a countdown timer, and see simple icons or smiley faces that indicate brushing performance.

The iO brush heads designed for the Series 9 use individually tufted bristles that are angled to reach between teeth and along the gumline. Oral-B recommends replacing these heads approximately every three months, consistent with general dental guidance and typical wear patterns. Replacement iO heads are widely available in the US through major retailers and online marketplaces, and are sold in multi-packs that can reduce the cost per head for families sharing multiple iO handles.

Pricing, availability, and how it fits into Oral-B's lineup

For US shoppers, the Oral-B iO Series 9 is positioned near the top of the brand's consumer range, above lower-numbered iO models that share the core magnetic drive but offer fewer modes, simpler displays, or fewer accessories. The iO Series 9 kits commonly include the handle, several iO brush heads, a magnetic charging base, and a travel case; some SKUs also bundle a charging travel case that works with a USB power source for convenience on trips. On US retail sites, list prices have historically been set around $299.99, but real-world transaction prices often come down via promotions, coupons, and bundles, especially during major shopping events.

Availability is broad across the US. The Oral-B iO 9 is carried by large national chains and e-commerce platforms, including Amazon, with multiple color variants such as black onyx, white alabaster, and rose quartz. This wide distribution reflects Procter & Gamble's strategy of keeping its high-margin premium oral care products visible in both physical and digital channels in the United States. The product is marketed heavily alongside Crest toothpaste, another key oral care brand in the Procter & Gamble portfolio, creating cross-selling opportunities in the dental hygiene aisle.

In product reviews, the iO Series 9 typically receives strong marks for cleaning performance, ergonomics, and noise levels, though critics sometimes highlight the high price and ongoing cost of proprietary replacement heads. Many reviewers note that the brush runs more quietly and with a smoother feel than some earlier Oral-B models while still delivering a vigorous clean. The app-based coaching is frequently described as useful for those who like data and gamification, but it is not mandatory for basic use; the brush can function as a standalone device without connecting to a phone.

Compared with competing premium brushes, such as high-end sonic models from other major oral care brands, the Oral-B iO Series 9 leans heavily on its round-head and oscillating-rotating heritage, complemented by the modern magnetic drive. This gives Procter & Gamble a differentiated story for consumers who feel more comfortable with a dentist-like design rather than a traditional elongated sonic head. For households that already use Oral-B, the iO 9 also offers continuity in brushing technique, making upgrades more intuitive.

For Procter & Gamble, the Oral-B iO platform is part of a broader strategy to move consumers up the value ladder into connected and premium devices that can support higher average selling prices and recurring revenue from consumables. Premium electric toothbrushes can encourage long-term use of branded brush heads and, indirectly, complementary products such as mouthwash and toothpaste within the same brand family. As a flagship brush, the iO Series 9 showcases the technology that may later diffuse into more affordable models.

For now, the Oral-B iO Series 9 stands as a key premium oral care product under the Procter & Gamble umbrella, aimed at consumers willing to pay for advanced features and app connectivity in a daily-use device. Shares of Procter & Gamble (US7427181091, ticker PG) traded at $148.50 on NYSE on June 12, 2026.

This article was created with a.i. assistance and editorially reviewed. Product information is provided without warranty; prices and availability may change at any time. Not investment advice, not a buy or sell recommendation. Trading in securities carries risks up to the total loss of capital.