Philips HX9912/78 Smart Electric Toothbrush: Sonicare Fluid Action technology
This Philips Sonicare Smart Electric Toothbrush is designed for the busy professional who wants a dentist-clean feel at home. It moves beyond basic cleaning to become a personal hygiene coach.
The app's real-time guidance tracks your brushing, ensuring you cover every area. The pressure sensor automatically adjusts intensity if you brush too hard, protecting your gums. You will notice your teeth feel smoother after just a few uses, thanks to its effective plaque removal.
With features like Bluetooth connectivity and a USB-C charging travel case, it fits seamlessly into your routine. It is compatible with Android and iOS devices for easy app integration. This toothbrush offers a smarter way to maintain oral health daily.
Features
- 62,000 bristle movements per minute
- Bluetooth connectivity with Sonicare app
- Light ring pressure indicator
- 15 brushing settings
- BrushSync mode-pairing feature
- 14 days battery life on full charge
- USB-C charging travel case
- Pressure sensor with automatic intensity adjustment
- Motion and coverage sensors
- Brush head replacement reminder
- Compatible with Android and iOS devices
- Removes up to 20x more plaque than manual toothbrush
- Up to 15x healthier gums in six weeks
- Up to 100% more stain removal in less than two days
- All-in-One A3 brush head with multi-angle bristles
- Slim ergonomic handle design
- Glass charger included
- Travel case included
- 110-220V voltage compatibility
- Lithium-ion rechargeable battery
- Brush head recognition technology
- 3D mouth map in app for trouble areas
- TouchUp feature for missed spots
- Scrubbing sensor to reduce excess scrubbing
- Position sensor for coverage guidance
- BrushPacer and SmarTimer
- Visual pressure alert (purple light ring)
- 2-year limited warranty
- Sonicare Fluid Action technology
General specs
- Brand: Philips
- Model: HX9912/78
- Seller: Joom
- ID: 692824eebd6628018fb70161
- Timer: Smart Timer
- Technology: Sonic
- Battery Life: 14
- Power Source: Rechargeable Battery
- Suitable For: Adults
- Cleaning Modes: 5
- Charging Method: Inductive
- Pressure Sensor: Yes
- Brush Head Shape: Round
- UV Sterilization: Yes
- Head Compatibility: Oral-B
- Brush Heads Included: 1
- Vibrations Per Minute: 62000
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
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| Brand | Philips | Oral-B | Oral-B | Philips | Oral-B | Marlincare |
| Model | HX9912/78 | D 36.535.5 X WH | SmartSeries5000 | HX9690/05 | D706.513.6X | M10PRO |
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| Price | $377.51 | $59.94 | $59.94 | $199.99 | $199.99 | $26.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 5, 2026 | Feb 7, 2026 | Feb 7, 2026 | Feb 7, 2026 | Feb 7, 2026 | Feb 4, 2026 |
| Timer | Smart Timer | 2-minute | 2-minute | 2-minute | 2-minute | |
| Technology | Sonic | Magnetic Levitation | Magnetic Levitation | Sonic | Sonic | |
| Battery Life | 14 | <num1>, <num2> | 10 | 180 | ||
| Power Source | Rechargeable Battery | Rechargeable Battery | Rechargeable Battery | Rechargeable Battery | ||
| Suitable For | Adults | Children | Children | Children | ||
| Cleaning Modes | 5 | 5 | 5 | 4 | ||
| Charging Method | Inductive | Direct Plug-in | Direct Plug-in | Magnetic | ||
| Pressure Sensor | Yes | Yes | Yes | Yes | Yes | |
| Brush Head Shape | Round | Round | Round | |||
| UV Sterilization | Yes | Yes | Yes | |||
| Head Compatibility | Oral-B | Oral-B | Oral-B | |||
| Brush Heads Included | 1 | 1 | 1 | 2 | 4 | |
| Vibrations Per Minute | 62000 | <num1>, <num2> | 8800 | 55000 | ||
| Battery Type | Li-Polymer | Li-Polymer | Li-Polymer | |||
| Bristle Softness | Soft | Soft | Soft | Soft | ||
| Water Resistance | IPX7 | IPX7 | IPX8 | |||
