Which smart toothbrushes is better ? Read this Sonic ultrasonic toothbrushes Review

Philips Sonicare DiamondClean Smart HX9903 / 13 – buy recommendation from the editors

In addition to conventional electric toothbrushes, sonic and ultrasonic toothbrushes promise even better daily cleaning of the teeth. It is particularly practical that when using a sonic or ultrasonic toothbrush, inflammation on the gums is minimized and bleeding gums can also be reduced or completely eliminated. The difference between sonic and ultrasonic toothbrushes lies in the way they work, but in a direct comparison both variants are similarly effective and gentle on the gums.

Our performance winner is a smart option, the Sonicare DiamondClean Smart HX9903 / 13 sonic toothbrush can be used via Bluetooth with an associated app and, thanks to a wide variety of sensors, indicates when users need to reduce or maximize the pressure of the brush when cleaning, for example. At 200 euros, the acquisition costs are less affordable than the cheaper Fairywill FW 507 sonic toothbrush, which is available for less than 30 euros – but it doesn’t offer quite as many premium functions. The UVP of the ultrasonic toothbrushes in this Review comparison are between 130 and 155 euros. (As of: 10/2019)

The most important thing in brief: Our 4 top models at a glance:

Philips Sonicare DiamondClean Smart HX9903 / 01 – Our buy recommendation: A premium device that shines not only by a well-known manufacturer. An identical version as the Review winner in 2024. The control of the cleaning process with a special app and the 62,000 movements of the brush head per minute are particularly impressive and make the Philips Sonicare DiamondClean Smart Sonic Toothbrush our performance winner.

Fairywill FW 507 sonic toothbrush for bargain hunters: With a purchase price of less than 30 euros, the cheapest alternative in our comparison of sonic and ultrasonic toothbrushes. A clear recommendation not only for bargain hunters, but also for beginners. There are only deductions in the frequency of rotation: the Fairywill only manages 40,000 movements per minute. Ultrasonic toothbrush MEGASONEX M8 as an alternative: Thorough cleaning without noticeable rotation of the brush head because no mechanical cleaning takes place. Nevertheless, the MEGASONEX ensures deep cleaning of the teeth and is gentle on the gums by vibrating the toothpaste.

Emmi-dent Professional 2.0 ultrasonic toothbrush from a German manufacturer: The emmi-dent Professional 2.0 offers an alternative, especially for children, because an extra small brush head is available. At over 120 euros, however, the ultrasonic toothbrush, like the MEGASONEX, is more in the higher price segment.

Sonic and ultrasonic toothbrushes – customers should pay attention to this before buying

Sonic and ultrasonic toothbrushes are considered a further development of electric toothbrushes. Interested parties should pay attention to which functions are included with the respective toothbrush. For example, protecting the gums is an advantage. For example, not all sonic and ultrasonic toothbrushes can be combined with one app. More information to help anyone interested in buying a sonic or ultrasonic toothbrush:

sonic toothbrush: Do not work directly with sound. The efficiency and the difference to conventional toothbrushes is due to the high movement frequency of the brush head. That is achieved with a sound generator via magnetism or a piezo element. Depending on the model, a sonic toothbrush creates a frequency between 30,000 and 60,000 per minute. This is significantly more than the manual toothbrush, because it is only 500 movements per minute.

ultrasonic toothbrush: When using ultrasonic toothbrushes, users usually need a special toothpaste. This is due to the way it works, since with this type of toothbrush there is no mechanical cleaning via the brush.

Not the brush itself, but the toothpaste is vibrated and the teeth cleaned. This creates bubbles in the liquid, which have a cleaning effect when they burst. Only a few copies of ultrasonic toothbrushes exist. In our Review, two are presented: the MEGASONEX M8 and emmi-dent Professional 2.0 ultrasonic toothbrush.

Suitability for children: Noise and in particular ultrasonic toothbrushes are not harmful to adults or children in long-term use and are therefore harmless. However, some brush heads are a bit large, so children could have problems.

Philips Sonicare DiamondClean Smart HX9903 / 13 sonic toothbrush: Our recommendation

With our purchase recommendation Sonicare DiamondClean Smart HX9903 / 13 users get a sonic toothbrush, which controls the pressure when brushing thanks to various sensors. As the only electric toothbrush in this Review comparison, users can control cleaning by smartphone. A 3D map in the Philips Sonicare app (Android | iOS) signals which improvements to the cleaning process are necessary and achieves good cleaning performance. This is also due to the 62,000 brush movements per minute. The premium function is impressive and facilitates excellent oral hygiene – it is a shame that the costs are somewhat expensive at around 200 euros. (As of: 10/2019)

• Amazon customers rated the Philips Sonicare DiamondClean 4 out of 5 stars. (As of: 10/2019)

Price and availability of the Philips Sonicare DiamondClean Smart HX9903 / 13 sonic toothbrush

The manufacturer Philips has set the  Sonicare DiamondClean sonic toothbrush $199.95 at Amazon. The smart toothbrush is around 60 euros cheaper in stores. (As of: 10/2019)

Fairywill FW 507 sonic toothbrush – the affordable toothbrush with premium functions

The Fairywill FW 507 sonic toothbrush delivers an impressive price-performance ratio and is available for less than 30 euros (status: 10/2019). In comparison, it is significantly cheaper than the Philips Sonicare sonic toothbrush. The sonic toothbrush shines with 5 different cleaning modes and can be charged via USB. The Fairywill can therefore be recharged with any existing USB cable without the need for its own charging station. This should prove to be practical, especially when traveling. When freshly charged, the lithium-ion battery lasts for two weeks for a sovereign time.

Prices and offers of the Fairywill FW 507 sonic toothbrush

The Sonic Toothbrush Fairywill FW 507 Sonic Toothbrush costs around $34.95 in stores. (As of: 10/2019)

Sonicare DiamondClean Smart HX9903 / 13 and Fairywill FW 507 in comparison – technical data

The main difference between the Philips Sonicare DiamondClean and the Fairywill sonic toothbrush is the price-performance ratio. Whereas the Sonicare costs around 200 euros in the premium segment, the Fairywill sonic toothbrush is much cheaper at around 30 euros. However, there are drawbacks in the rotation frequency of the brushes in comparison: Philips Sonicare manages 62,000 movements per minute, Fairywill, on the other hand, only 40,000. An overview of the technical data:

	Sonicare DiamondClean Smart HX9903 / 13 sonic toothbrush	Fairywill FW 507 sonic toothbrush
Type of toothbrush	sound	sound
Brush head movement per minute / frequency	62,000 movements p. minute	40,000 movements p. minute
sensor	Pressure / position / scouring sensor	k. A.
app	yes, via Bluetooth, 3D map shows problem areas in the mouth	No
Number of cleaning programs	4 (Clean, White +, Deep Clean +, Gum Health)	5 (White, Clean, Sensitive, Polish, Massage)
Number of intensity settings	3 (high, medium, low)	k. A.
Brush head variants	3 (1 C3 Premium Plaque Defense, 1 G3 Premium Gum Care, 1 W3 Premium White)	3 (soft, hard, medium)
battery pack	Lithium-ion battery	Lithium-ion battery
Extras	Loading glass, travel case	Charging takes place directly via USB cable, lasts approximately 30 days
RRP	€ 269.99	27 euros

MEGASONEX M8 – Ultrasonic toothbrush with proprietary battery

Compared to leading brands such as Philips, the design of the MEGASONEX M8 ultrasonic toothbrush is not quite as attractive, but it is still well made. For users who were previously used to brushing their teeth with a conventional toothbrush or are currently using an electric toothbrush, the brushing process may initially be unfamiliar.

Finally, the ultrasonic toothbrush works without great pressure or mechanical rotary movements of the brush. Some manufacturers of ultrasonic toothbrushes require an extra toothpaste so that the cleaning effect works best due to the vibration of the paste. No special one is required for the MEGASONEX M8. This reduces the follow-up costs enormously, because extra toothpaste for ultrasonic toothbrushes can often be expensive.

MEGASONEX M8 ultrasonic toothbrush – important tests and ratings

• In the Review of elektrischezahnbuerste.org In addition to the thorough cleaning performance, the MEGASONEX M8 convinced with a timer and that it only switches itself off after 3 minutes. (Status: 08/2019)
• Amazon customers rated the MEGASONEX M8 ultrasonic toothbrush 4.5 out of 5 stars. (As of: 10/2019)

Prices and offers of the MEGASONEX M8 ultrasonic toothbrush

The MEGASONEX M8 ultrasonic toothbrush is available at a price of £146.00 at Amazon UK.

emmi-dent Professional 2.0 – cheap ultrasonic toothbrush in comparison

In comparison to the MEGAPLEX M8, the Emmi-dental Professional 2.0 ultrasonic toothbrush is available for around 20 euros cheaper. (As of: 10/2019). The design is a bit chunkier, but there are extra brush heads available for children. The smaller version also facilitates gentle cleaning with the Emmi-dent ultrasonic toothbrush. The standard size of the brush head makes it difficult or even impossible for children to use ultrasound to clean their teeth.

With the Emmi-dent ultrasonic toothbrush, users not only remove plaque, but also bacteria. A very good cleaning result can be achieved gently and without heavy scrubbing and also prevents bleeding gums.

Emmi-dental Professional 2.0 ultrasonic toothbrush – important tests and ratings

• “With regard to the removal of plaque and other impurities, Emmi-Dental is definitely in the top field.” (Status: 08/2019)
• In the purchase advice from chip.com The experts counted Emmi-dental Professional among the few but good options if users are interested in an ultrasonic toothbrush. However, the experts found the design to be chunky. (As of: 03/2019)
• Amazon customers awarded the Emmi-dental Professional 2.0 ultrasonic toothbrush 3.5 out of 5 stars. (As of: 10/2019)

Prices and offers of the Emmi-dental Professional 2.0 ultrasonic toothbrush

The manufacturer Emmi Ultrasonic has set the RRP for the Emmi-dental Professional 2.0 ultrasonic toothbrush at $219.99. It is only marginally cheaper in retail. (As of: 10/2019)

MEGASONEX M8 and Emmi-dental Professional 2.0 in comparison – technical data

Both ultrasonic toothbrushes MEGASONEX M8 and Emmi-dental Professional 2.0 use a nickel-metal hybrid battery, whereby MEGASONEX has integrated its own megabattery battery. The MEGASONEX M8 does not require any special toothpaste and is less bulky in design than the Emmi-dent ultrasonic toothbrush. Further technical data in direct comparison:

	MEGASONEX M8 ultrasonic toothbrush	emmi-dent Professional 2.0 ultrasonic toothbrush
Type of toothbrush	Ultrasonic	Ultrasonic
Brush head movement per minute / frequency	18,000 / 9,000 sound movements p. minute	1,600,000 per second
sensor	k. A.	k. A.
app	No	No
Number of cleaning programs	k. A.	k. A.
Number of intensity settings	2 (standard with 18,000, gentle with 9,000 sound movements	k. A.
Brush head variants	2 (soft, medium)	3 (adults, children, braces
battery pack	own megabattery battery (nickel metal hybrid)	Nickel-metal hybrid battery
Extras	Travel case, does not require a special toothpaste	75ml microbubble toothpaste, 2 Mira-Ton tooth staining tablets and a tartar remover attachment
RRP	154 euros	129.99 euros