ConsFirst / Electric toothbrushes

Philips Sonicare

Philips Sonicare 4100 Rechargeable Electric Toothbrush: the downsides first

We may earn a commission when you buy through our links. It never changes what we report. Learn more

#3 of 8
$SonicScore 3.7/5
10%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)

A quiet, simple sonic brush that two major testers rank first or second, but its heads cost about twice as much as Oral-B's. Owners also report units that stop charging or die within a year.

Top complaints

  • Heads cost about twice as much as Oral-B's

    Wirecutter says Sonicare heads can cost more than double Oral-B's and estimates a three-year cost of about $170 versus about $98 for the Pro 1000. Electric Teeth puts heads at about $10 each.

  • Stops charging or dies within a year

    Amazon's review summary says multiple customers report it stopped working in less than a year, and some say it stops charging or feels weak.

  • USB-only charger

    Since October 2021 the charger has had only a USB plug with no wall adapter (Wirecutter; Philips will send one free on request). Amazon's summary calls charging problematic because only a USB cord is included. Electric Teeth says a full charge can take up to 24 hours.

  • Vibration felt through the whole brush

    Wirecutter says the vibrations can be felt throughout the brush even on low, and the hard plastic back of the head can knock against opposing teeth. Electric Teeth notes there is no light to show which intensity is selected.

What owners love

  • Quiet

    Wirecutter measured about 30 dB on high, quieter than the Pro 1000; Electric Teeth measured 60 dB versus 73 dB for the Pro 1000.

  • Long battery life

    Wirecutter averaged 16 days of twice-daily use. Electric Teeth got 17 days on high intensity and about 41 on low.

  • Pressure sensor and gentle start

    CNN Underscored found the pressure sensor works as expected and liked the EasyStart mode, which ramps up power over the first 14 uses. It found the low setting good for gums.

Good for
  • A quiet brush
  • Smaller mouths (narrower heads)
  • Newcomers who want a pressure sensor and a gentle start-up mode

Scores (tap for why)

  • Cleaning feel4.5
    Why 4.5?Wirecutter says it feels just as powerful as the Pro 1000; cleaning performance is praised by CNN and Amazon owners.
  • Gentleness4.0
    Why 4.0?Low intensity, EasyStart and a pressure sensor (CNN, Electric Teeth), but Wirecutter found the vibration can feel uncomfortable.
  • Battery4.0
    Why 4.0?16-17 days on high in tests, though Amazon owners are mixed and a full charge can take 24 hours.
  • Replacement head cost2.5
    Why 2.5?About $10 per head, roughly double Oral-B standard heads.
  • Ease of use4.0
    Why 4.0?One button with auto shut-off (Wirecutter), but there's no intensity indicator and the charger is USB-only.
  • Durability3.0
    Why 3.0?2-year warranty, but Amazon's summary flags units failing in under a year, and Electric Teeth says it can't be repaired at home.

What experts say

  • CNN Underscored: Best electric toothbrush overall for its combination of usability, performance and value, with a pressure sensor, 14-day battery and two-year warranty.
  • Wirecutter (NYT): Runner-up: quieter, with longer battery life and auto shut-off, but its heads cost twice as much, vibrations can feel uncomfortable and the charger is USB-only.
  • Electric Teeth: 4.9/5. Its cons are no indicator for the selected intensity and a motor tuned differently from premium Sonicare models.
Check price on AmazonWe don't list prices — they change daily. Paid link.

If that catch is a deal-breaker

Highly ranked electric toothbrushes whose biggest complaint is something else.

Head-to-head

See all 8 electric toothbrushes ranked →