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Oral-B iO Series 9 Electric Toothbrush with 4 Brush Heads, Aqua Alabaster

TLDR Review: Oral-B iO Series 9 Toothbrush

Item: Oral-B iO Series 9 Toothbrush
Author: ShopSavvy

By ShopSavvy Team

Published: April 5th, 2026

Pros

•Provides an exceptionally thorough clean that reaches places a manual brush simply can’t.
•Strong yet gentle vibrations make it comfortable on gums while effectively removing plaque.
•Lonasting battery life with quick charging keeps it ready for regular use.
•Ergonomic, sleek design that’s both modern and easy to hold during brushing.
•Four brush heads included, which are easy to replace and help customize your oral care.
•Features multiple brushing modes, including sensitive and whitening, for a tailored experience.
•Interactive app offers detailed feedback, tracks brushing habits, and motivates with rewards.
•Magnetic charging mount and convenient travel case make charging ohe-go hassle-free.
•Users report noticeable improvements in oral hygiene and fresher mouthfeel after use.

Cons

•Battery life is inconsistent; some users found it significantly shorter than expected and worse than previous Ora models.
•Display malfunctions reported, including it stopping working after about six weeks of use.
•Replacement units (under warranty) sometimes differ in color, which may disappoint users wanting the original color.
•Lacks Apple Watch compatibility, requiring users to rely on their phone to access brushing data.
•Toothpaste buildup on the brush head if not cleaned properly after each use.
•Despite durable build, battery drain can be quicker than anticipated during regular 2–3 minute sessions.

Bottom Line

The Oral-B iO Series 9 Electric Toothbrush is a top-tier choice for anyone serious about improving oral health with advanced tech, multiple modes, and a highly effective clean. However, potential buyers should be aware of some reported battery life issues and occasional display problems, which Oral-B does address via warranty replacements. If you’re looking for premium performance combined with smart features and don’t mind relying on your phone for app integration, this is a solid pick. For those prioritizing ultra-reliable battery life or wearable app compatibility, you might want to explore alternatives or wait for user feedback on newer batches.

Lowest at any Popular Retailer

$246.99 at Amazon

How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 3 retailers to give you the short version.