DevicesUpdated October 2026

Philips Sonicare DiamondClean Smart 9750

The Philips Sonicare DiamondClean Smart 9750 uses high-frequency sonic vibration (62,000 brush strokes/min) to create fluid dynamics that reach between teeth and below the gumline, areas the brush head never physically touches. BrushSync detects which replacement head is attached and picks the matching cleaning mode…

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

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 daily-use 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) to create fluid dynamics that reach between teeth and below the gumline, areas the brush head never physically touches. BrushSync detects which replacement head is attached and picks the matching cleaning mode automatically. It has five modes, including a Gum Health mode with a gentler pressure protocol, and a glass charging travel case. It's the best choice for people with sensitive gums or those recovering from periodontal surgery.

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