Electric toothbrushes are the most effective way to keep your teeth clean. But there’s nothing more annoying than the droning, whirring sound they make — especially if you're trying to sleep. They’re loud, noisy, and aggravating.
At least, most of them are.
But some of the more advanced models can be extremely quiet — it’s a factor we prioritise here at Oclean. That’s why we’re going through our top pick for the quietest electric toothbrushes for 2025. These sonic and electric toothbrushes are quieter than a whisper.
Let’s get started.
Top Quietest Electric Toothbrushes in 2025
1. Oclean X Pro Elite Sonic Toothbrush
The Oclean X Pro Elite Sonic Toothbrush packs a lot into a small package. While it may contain a Maglev magnetic motor that can reach speeds of up to 84,000 movements per minute, it is quieter than you’d think. In fact, it tops out at around 45 dM and lower.
But that’s not the only impressive feature. As the Maglev motor delivers sonic cleaning, the onboard computer allows you to select from four different modes and tracks your brushing technique across eight areas. It even utilises intelligent AI frequency reduction to deliver the best possible experience.
With an app via Oclean, you can keep track of all your dental progress — including getting a personalised brushing plan.
Why We Like It
✓ Ultra-quiet motor (<45 dB)
✓ Long 35-day battery life
✓ Smart touchscreen with brushing feedback
✓ Wireless charging + magnetic wall mount
Take Note
✕ No pressure sensor
✕ Display can feel overcomplicated for casual users
The Details
· Noise Level: <45 dB
· Battery Life: Up to 35 days
· Charging: Wireless Qi charging
· Extra Features: Touchscreen, 4 modes, 32 intensity levels, app syncing, IPX7 waterproof, DuPont bristles
2. Oral-B Pro1000 Rechargeable Electric Toothbrush
The Oral-B Pro1000 Rechargeable Electric Toothbrush is one of the more powerful offerings from the renowned brand. This oscillating electric brush is highly effective at plaque removal — and can even get below the gumline.
However, it’s not the quietest entry in our list. At 89 dB, it’s about the same volume as heavy traffic. Still, the volume depends on the setting. The more powerful you go, the louder it becomes.
Why We Like It
✓ 300% more plaque removal along the gumline compared to manual brushing
✓ Includes pressure sensor to help prevent over-brushing
✓ Easy-to-use single cleaning mode and built-in timer for proper brushing time
Take Note
✕ Quite noisy (~75–89 dB), comparable to heavy traffic or a vacuum
✕ Short battery life: ~10 days with 20–22 h charge time
✕ May feel aggressive and too large for sensitive gums or small mouths
The Details
· Noise Level: ~89 dB (loud, mechanical sound)
· Battery Life: ~10 days (2 min twice daily)
· Charging: Standard docking station, ~20–22 hrs full recharge
· Extra Features: Pressure sensor, 2-minute timer with 30s quadpacer, CrossAction brush compatibility, three modes (Daily Clean, Whitening, Sensitive)
3. Philips Sonicare 4100
The Philips Sonicare 4100 Sonic Electric Toothbrush is a pioneering device. Capable of removing up to 7x more plaque than a manual toothbrush, it’s a popular option.
The slim ergonomic design matches the equally impressive Sonicare technology — capable of cleaning above and below the gumline. Plus, the 2-minute SmartTimer and 30-second QuadPacer keep your brushing session on schedule.
Available in Black, Deep Pink, and White.
Why We Like It
✓ Removes up to 7× more plaque versus manual brushing
✓ Includes pressure sensor and Quadpacer & Smartimer to protect gums
✓ Lightweight, ergonomic, and whisper-quiet with a soft buzz
✓ Excellent battery performance—14–49 days depending on mode
Take Note
✕ Only two intensity settings
✕ Charges via proprietary USB dock—no wireless charging
The Details
· Noise Level: Quiet, soft buzzing
· Battery Life: ~14 days per Philips or up to ~49 days observed in real-world tests
· Charging: USB-A dock, ~24 hours to full charge
· Extra Features: Pressure sensor, quad-pacer smart timer, brush head replacement reminder, IPX7 waterproof handle, ergonomic design, two brushing intensities
4. Oclean Air 2T Sonic Toothbrush
The Oclean Air 2T Sonic Toothbrush is designed for travel. With a sleek travel case and up to 30 days of battery life, it’s perfect on those long-distance journeys as if it were at home.
Most impressive is the ultra-quiet technology — less than 37dB. For comparison, the average library is around 50dB. Despite the lack of noise, the Maglev motor still achieves an astonishing 80,000 movements per minute. So, you’ll get the same high-level of cleaning.
The sonic toothbrush is also waterproof and features DuPont diamond-shaped bristles, which maximise plaque removal.
Why We Like It
✓ Ultra-quiet at under 45 dB thanks to WhisperClean™ tech
✓ Powerful 80,000 movements/min maglev motor rivaling premium brushes
✓ Long-lasting battery, up to 30 days per 2.5 hr fast charge
✓ Lightweight & compact (95 g) with wall-mount & travel case
Take Note
✕ Single button; only two modes (default & gentle)
✕ Proprietary magnetic charger; no USBC
The Details
· Noise Level: ~37 dB (WhisperClean™)
· Battery Life: ~30 days after ~2.5 hr charge
· Charging: USB magnetic puck (not USBC)
· Extra Features: IPX7 waterproof, DuPont diamond Wshape bristles, smart timer & 30 s reminders, travel case & wall mount
5. Oral-B iO Series 9
The Oral-B iO Series 9 is one of the latest electric toothbrushes. While it’s not quite in the ultra-quiet category, it’s by no means the lowest brush on the list. But a little extra noise comes with some seriously great features.
It has a built-in pressure sensor that lights up red or green depending on how hard you press. Then there’s the display screen which offers motivations and customisation. The main downside is the price tag. This is one toothbrush that breaks the bank.
Why We Like It
✓ AI tracking with real-time feedback
✓ Smart pressure sensor with colour-coded ring
✓ OLED display and 7 brushing modes
✓ Long battery life with fast magnetic charging
Take Note
✕ Louder than sonic brushes (~64–72 dB)
✕ Expensive upfront and costly brush heads
The Details
· Noise Level: 64–72 dB
· Battery Life: ~38 days
· Charging: Magnetic stand + travel case
· Extra Features: 3D zone tracking, OLED screen, 7 modes, pressure sensor, Bluetooth app
6. Philips Sonicare 9900 Prestige
The Philips Sonicare 9900 Prestige promises an all-in-one premium brushing experience. It’s the next level in personalised brushing: it senses your brushing style, adapts in real time, and cares about your oral health. That means cleaner, whiter teeth.
Like most sonic toothbrushes, it’s not particularly loud. Expect a low hum, sometimes a little louder if you set it high. While it packs a lot of impressive features, it comes with an extremely high price tag. Some may think it’s worth the price, but it’s not for most people.
Why We Like It
✓ SenseIQ auto-adjusts brushing pressure, motion, and intensity in real time
✓ Removes up to 20× more plaque, improves gum health by 15×, and reduces stains by 100% faster than a manual brush
✓ Sleek, compact design with USB-C charging travel case and seamless one-touch control
Take Note
✕ All mode changes are done via the app—no buttons on the handle
✕ Premium price point and high cost of replacement brush heads
The Details
· Noise Level: Quiet sonic hum
· Battery Life: About 14 days typical, up to 30 days in light use
· Charging: USBC via travel case or charging stand
· Extra Features: SenseIQ pressure/motion sensing, visual pressure and scrub alerts, five modes with three intensities, real-time app coaching, brush replacement reminder, premium A3 AllinOne brush head, IPX7 waterproof, 2-year warranty
7. Aquasonic Black Series Ultra Whitening Toothbrush
The Aquasonic Black Series Ultra Whitening Toothbrush is the sleekest option in the list. The slim black design holds a powerful 40,000 vibrations per minute ultrasonic motor that disrupts plaque and lifts stains.
As far as noise goes, it’s still quite a bit above a whisper. Think like a library or even a bar. That’s not quite annoying levels but far from ultra-quiet. Still, with wireless charging, built-in smart timers, and 4 unique modes, it’s an excellent option
Why We Like It
✓ Powerful 40,000 VPM ultrasonic motor removes stains and plaque effectively
✓ Includes 4 modes—Clean, Soft, Whiten & Massage—with smart timers for optimal brushing
✓ Comes with 8 DuPont brush heads, wireless charging glass, and travel case
Take Note
✕ Lacks a pressure sensor — tooth sensitivity or overbrushing may be an issue
✕ Slightly louder (~53–68 dB) than higher-end sonic brushes
The Details
· Noise Level: ~53–68 dB during operation
· Battery Life: ~30–31 days per charge (2 min, twice daily)
· Charging: Wireless charging via included glass base
· Extra Features: IPX7 waterproof, ADA-approved, 4 modes with 30sec quadrant timer and 2min auto shutoff, travel case, 8 brush heads included
8. Philips Sonicare 2100 Power Toothbrush
The Philips Sonicare 2100 Power Toothbrush is the perfect first step into the world of electric toothbrushes. Affordable and powerful, it’s definitely better than your standard manual brush. It achieves around 60dB, which places it at the louder end of the list. But that’s a small price for the advanced sonic technology.
Expect the same 2-minute timer and QuadPacer technology you’ll find in all of Philips products. A good, reliable toothbrush.
Why We Like It
✓ Delivers up to 3× more plaque removal than manual brushing
✓ Comes with 2 intensity settings, a 2-minute timer, and quad-pacer for even coverage
✓ Slim, lightweight design that's easy to hold and clean
Take Note
✕ No pressure sensor, so you must watch brushing force
✕ USB charger base included, but no standard power adapter
The Details
· Noise Level: ~60 dB
· Battery Life: Up to 14 days
· Charging: USB-A stand (no power brick)
· Extra Features: Two intensity modes, EasyStart for beginners, 2-minute Smartimer with 30s quad-pacer, battery indicator light
9. Oclean Air 2 Sonic Toothbrush
The Oclean Air 2 Sonic Toothbrush is the most affordable option in the ultra-quiet series. Despite its humble price tag, you still get up to 30 days of battery life, an advanced Maglev motor (80,000 movements per minute), and the ingenious ultra-quiet technology.
In fact, it’s one of the quietest (if not the) sonic toothbrush on the market. The magnetic motor reduces friction, leading to little more than a low hum.
Other revolutionary features include the DuPont triangle bristles, 2 brushing modes, 2-minute smart time, waterproof, and weighing just 95 g. It’s really something special.
Why We Like It
✓ Whisper-quiet operation at just <45 dB using WhisperClean™ tech
✓ Powerful 80,000 movements/min maglev motor delivers a deep clean
✓ Lightweight at under 95 g, perfect for travel
✓ Up to 30 days of battery life with a 2.5-hour fast charge
Take Note
✕ Limited to two modes (Clean & Gentle) — no advanced settings
✕ Uses a proprietary magnetic charger, not USB-C
The Details
· Noise Level: <45 dB
· Battery Life: 30–40 days
· Charging: USB-A magnetic charger (2.5 hours)
· Extra Features: IPX7 waterproof, DuPont W-shaped bristles, 2-minute smart timer with 30s reminders, travel case, wall mount
10. Colgate Hum Electric Toothbrush
The Colgate Hum Electric Toothbrush is another popular option. This ultra-light, relatively quiet toothbrush gives you many of the same features you’d find elsewhere. What separates it from the competition is the app, lightweight design, and recharging options.
Still, it’s not as quiet as it could be — even if it is named hum.
Why We Like It
✓ Bluetooth-connected app tracks your brushing across 16 zones for real-time feedback
✓ Three easy-to-use modes (Normal, Sensitive, Deep Clean) with LED indicators on the handle
✓ Fun and lightweight design, plus you earn rewards (“Smile Points”) for brushing consistently
Take Note
✕ Battery lasts about 10 days — keep the charger handy for longer trips
✕ Uses rectangular brush heads only — could feel different compared to round heads on other brushes
The Details
· Noise Level: ~70dB
· Battery Life: ≈10 days per charge
· Charging: USB-A charging dock (rechargeable model); battery-powered option uses 2×AAA
Extra Features: Tracks brushing coverage via app; LED indicator for mode; rewards system for replacement heads; travel case included
