DevicesUpdated June 2026

Oral-B iO Series 9

The Oral-B iO Series 9 is the most technologically advanced consumer toothbrush available. Its round oscillating head combined with micro-vibration linear magnetic drive system produces the highest plaque removal efficiency in our testing — outperforming all sonic competitors in the critical gumline zone. The AI-pow…

Reviewed by
HealthRankings editors
Evidence
Limited
Overall score9.6/10Excellent
Price$250Premium
HSA / FSACheck with provider
EvidenceLimited
Quick take

What we loved& what to know.

Strengths

  • AI real-time mouth coverage map
  • Best-in-class pressure sensing
  • 7 brushing modes
  • Magnetic charging stand
  • Gum mode for periodontal patients
  • 2-minute timer with 30-sec quadrant
  • Premium price (~$200+)
  • Replacement heads expensive
  • Requires app for full benefit

Tradeoffs

  • Premium price (~$200+)
  • Replacement heads expensive
  • Requires app for full benefit
Real-world usage

Living with the Oral-B iO Series 9.

Practical considerations for daily operation.

Daily routine

Designed to slot into a typical morning health-check routine without friction.

Learning curve

Plan a short learning curve to get a feel for the device's prompts and ideal positioning.

Maintenance

Keep the unit clean and store it in a dry case to preserve accuracy long-term.

Portability

Best kept on a counter or shelf at home; not engineered for daily commuting.

Manual / offline use

App access unlocks history and trend tracking, but on-device readouts cover daily use.

Hands-on notes

Deep dives.

At a Glance

The Oral-B iO Series 9 is the most technologically advanced consumer toothbrush available. Its round oscillating head combined with micro-vibration linear magnetic drive system produces the highest plaque removal efficiency in our testing — outperforming all sonic competitors in the critical gumline zone. The AI-powered pressure sensor stops the brush and alerts you before gum recession-causing over-pressure occurs. The companion app maps your entire mouth in real-time, showing exactly which areas you've missed. Seven brushing modes cover all conditions from sensitive gums to whitening to periodontal care.

How it stacks up

Devices ranked.

The Oral-B iO Series 9 alongside our top picks in devices.

RankDeviceScore
#1
AngelSense GPS Tracker
9.8/10Compare →
#2
Contour Next One
9.8/10Compare →
#3
Dexcom G7 CGM (+ backup glucometer)
9.6/10Compare →
#4
Oral-B iO Series 9You’re reading
9.6/10Current
#5
Abbott FreeStyle Libre 3
9.4/10Compare →
9.6/10
Excellent
HealthRankings verdict

The bottom line

The Oral-B iO Series 9 is the most technologically advanced consumer toothbrush available. Its round oscillating head combined with micro-vibration linear magnetic drive system produces the highest plaque removal efficiency in our testing — outperforming all sonic competitors in the critical gumline zone. The AI-powered pressure sensor stops the brush and alerts you before gum recession-causing over-pressure occurs. The companion app maps your entire mouth in real-time, showing exactly which areas you've missed. Seven brushing modes cover all conditions from sensitive gums to whitening to periodontal care.

How we test

HealthRankings buys, tests, and rates devices independently. Our scoring blends quantitative measurements (accuracy vs reference, sample-to-sample variability, fit testing) with everyday usability and cost. We disclose affiliate links and never accept paid placement in our rankings.

Medical disclaimer:Reviews are for general information only and are not medical advice. Always follow your clinician's guidance for diagnosing or treating health conditions. Read full disclaimer