Pros

  • Provides a noticeably cleaner feel, akin to a dentist visit, compared to older models.
  • The colohanging light effectively indicates the correct brushing pressure.
  • Intuitive alerts and fun color flashes guide the brushing process.
  • Larger brush head comfortably reaches all tooth surfaces and enhances cleaning performance.
  • Offers improved battery life, contributing to user satisfaction.
  • Stylish and attractive design options, such as the pink variant.
  • Effective for users with dental work like crowns.
  • Provides three settings for a customizable brushing experience.
  • Includes a 6ay money-back guarantee for increased purchase confidence.
  • Slim, lightweight design facilitates ease of handling and use.

Cons

  • Lack of visible indications and unclear instructions for different modes can cause confusion.
  • The sensitive mode does not feel distinctly different from other modes.
  • Replacement brush heads are costly and can be difficult to find.
  • Connectivity issues with the Oral B app and concerns about Bluetooth features.
  • No user guide provided, relies on visual instructions or online resources for operation guidance.
  • Lack of included accessories commonly provided by competitors.
  • Higher speeds may cause mess due to toothpaste splattering.
  • Mode button functionality does not significantly affect cleaning modes, leading to user frustration.
  • Expensiveness of the replacement brush heads can outweigh the initial cost benefits.
  • Overall dissatisfaction from some lonerm Oral-B users due to unmet expectations.

Bottom Line

The Oral-B iO Series 3 Electric Toothbrush emerges as a powerful upgrade with its enhancements in cleaning efficiency, design, and pressure indication features, providing a professional, fresh feel. However, its lack of distinct modes, costly brush head replacements, and challenges with setup instructions may deter some users. For those seeking a reliable brush with advanced cleaning capabilities, it remains a noteworthy option, though you may want to explore alternatives if these cons are significant to your decision-making.

Lowest at any Popular Retailer
$59.99 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 8 retailers to give you the short version.

Where to Buy

Prices last updated: August 15th 2026 7:50 am
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