Oral-B iO Series 6 vs Philips Sonicare Series 7100

Over three years, with heads at each maker's own pack price, the Philips Sonicare Series 7100 costs about $227 to the Oral-B iO Series 6's $239. Both have pressure sensors, signalled differently: pressure sensor (signal not described) on the Oral-B iO Series 6, multi-signal pressure sensor on the Philips Sonicare Series 7100. The Oral-B iO Series 6 has an ADA Seal listing; none was found for the Philips Sonicare Series 7100. Only the Philips Sonicare Series 7100's travel case charges the brush. Every other published figure for both is in the table, with the rows where they differ tinted.

Oral-B iO Series 6 electric toothbrush

Oral-B

Oral-B iO Series 6

Pressure sensor · ADA Seal listingbattery life not published · charging stand · travel case

~$160

A handle display is the reason to step up to the iO6: Oral-B uses it to select modes, count down the brushing time, flag a worn head and show battery level.

Best for: The cheapest iO with a screen on the handle

Philips Sonicare Series 7100 electric toothbrush

Philips Sonicare

Philips Sonicare Series 7100

Pressure sensor21-day battery · charging case

~$160

Philips' 2026 7100 is the cheapest Sonicare with a charging travel case, and it has four modes, the 5700's Gum Health plus the 6500's White and Sensitive, with three intensities.

Best for: Travellers who want one cable and a Sonicare

Specification comparison of the Oral-B iO Series 6 and the Philips Sonicare Series 7100
SpecificationOral-B iO Series 6Philips Sonicare Series 7100
Approx. price~$160~$160
3-year cost~$239 ($160 handle + 11 heads at $7.22)~$227 ($160 handle + 10 heads at $6.66)
TypeOscillating-rotatingSonic
MotionOscillating-rotating (round head)Sonic (vibrating head)
Speed (maker's figure)not published62,000 brush movements / min
MotoriO magnetic driveNext-Generation Sonicare Technology
Pressure sensorPressure sensor (signal not described): Oral-B lists iO's Smart Pressure Sensor on this model without describing how it signalsMulti-signal pressure sensor: Light ring at the base illuminates purple, with vibration and a pulsing sound
ADA SealListed: Oral-B iO SeriesNo listing found
Timer2-minute timer2-minute timer
Quadrant pacernot publishedYes, every 30 seconds
Modes5: Daily Clean, Sensitive, Whitening, Gum Care, Intense Clean4: Clean, White, Gum Health, Sensitive
Intensitiesnot published3
ScreenScreenNone
AppYesYes
Batterynot published21-day battery (Philips spec: operating time 21 days)
Chargingcharging standUSB-A lead
Travel caseYesYes, and it charges the brush
Heads in the box12
Head familyOral-B iOSonicare click-on
Head compatibilityCompatible only with Oral-B iO replacement headsAny Philips Sonicare click-on head (C1 SimplyClean, C2, C3, G3, A3, W); not Philips One heads
Price per head$7.22 (Oral-B iO Ultimate Clean 9-count, $64.99 on oralb.com)$6.66 (Sonicare SimplyClean 6-pack (HX6016/77), $39.96 on usa.philips.com)
Replace heads every3 months (maker)3 months (maker)
Warranty2 years2 years
First listednot published2026

Oral-B iO Series 6: what it gives up

  • Drops Super Sensitive, which the cheaper iO4 and iO5 have
  • Oral-B does not describe how this model's pressure sensor signals
  • No battery figure: of the iO range, Oral-B gives one only for the iO2
  • One head in the box; the iO7 ships two

Philips Sonicare Series 7100: what it gives up

  • Charges over USB-A with no wall adapter included
  • No screen on the handle, and no Sonicare here has one
  • $30 over the 6500 for the charging case and Gum Health mode

Full pages: Oral-B iO Series 6 · Philips Sonicare Series 7100