DevicesUpdated June 2026

Philips Sonicare DiamondClean Smart 9750

The Philips Sonicare DiamondClean Smart 9750 uses high-frequency sonic vibration (62,000 brush strokes/min) that generates fluid dynamics reaching between teeth and below the gumline — areas the brush head doesn't physically touch. Its BrushSync technology detects which replacement head is attached and automatically…

Reviewed by
HealthRankings editors
Evidence
Limited
Overall score9.2/10Excellent
Price$200Premium
HSA / FSACheck with provider
EvidenceLimited
Quick take

What we loved& what to know.

Strengths

  • Gentlest on sensitive gums
  • Sonic fluid dynamics reach below gumline
  • BrushSync auto mode selection
  • 5 modes including Gum Health
  • Glass charging travel case
  • Less effective at physical plaque scrubbing vs iO
  • Premium price
  • App less advanced than Oral-B

Tradeoffs

  • Less effective at physical plaque scrubbing vs iO
  • Premium price
  • App less advanced than Oral-B
Real-world usage

Living with the Philips Sonicare DiamondClean Smart 9750.

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

Routine wipe-downs and the occasional accessory swap are all this device needs.

Portability

Compact enough for travel — many shoppers fit it directly into a carry-on or work bag.

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 Philips Sonicare DiamondClean Smart 9750 uses high-frequency sonic vibration (62,000 brush strokes/min) that generates fluid dynamics reaching between teeth and below the gumline — areas the brush head doesn't physically touch. Its BrushSync technology detects which replacement head is attached and automatically selects the optimal cleaning mode. Five modes including a dedicated "Gum Health" mode with gentler pressure protocol. Best choice for patients with sensitive gums or post-periodontal surgery recovery.

How it stacks up

Devices ranked.

The Philips Sonicare DiamondClean Smart 9750 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 9
9.6/10Compare →
#5
Abbott FreeStyle Libre 3
9.4/10Compare →
9.2/10
Excellent
HealthRankings verdict

The bottom line

The Philips Sonicare DiamondClean Smart 9750 uses high-frequency sonic vibration (62,000 brush strokes/min) that generates fluid dynamics reaching between teeth and below the gumline — areas the brush head doesn't physically touch. Its BrushSync technology detects which replacement head is attached and automatically selects the optimal cleaning mode. Five modes including a dedicated "Gum Health" mode with gentler pressure protocol. Best choice for patients with sensitive gums or post-periodontal surgery recovery.

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