Hydrosonic Pro put to the test: how I learned to love a sonic toothbrush
28/4/2026
Translation: Jessica Johnson-Ferguson
Pictures: Stephan Lamprecht
I’ve never really warmed to sonic toothbrushes. But when Curaprox sent me the Hydrosonic Pro to test, I decided to give it one last chance
My first encounter with a sonic toothbrush was in the early 90s, and it was terrible. The brush sounded as if it were working directly on the roots of the teeth. After two days, my gums were so sore I sold the toothbrush. A few years ago, I had another go at one. The result? Sore gums and an abandoned test.
So I’m approaching this test with a healthy dose of scepticism.
First impressions: a designer piece for your bathroom
Unboxing the brush, I quickly realise that the aesthetics were an important consideration. The box reminds me of Apple’s packaging style. In addition to the matt white handheld brush, the box includes three brush heads, a travel case and a charging stand. One thing that sticks out to me as a definite plus is the included power supply. These days, that’s by no means a given.
When placed on its stand, the Hydrosonic looks less like an everyday object and more like a design piece. I like it.
This brush is a vibe
Single-button operation makes navigating the seven cleaning levels easy. You can choose between cleaning levels Start, Smile and Clean as well as three intensity levels for the two latter ones. According to the instructions, the levels differ in terms of vibration frequency: 44,000, 64,000, and 84,000 vibrations per minute.
A blue LED displays which level you’ve selected. Thanks to the memory function, the brush always starts in the last mode you used.
The included booklet explains the different cleaning levels and how to use them. The pictures show you the best way to hold the brush – including in those hard-to-reach areas, such as around braces.
The manufacturer recommends starting with a low setting and an extra-soft brush head, so I stick to that. And my contact person at Curaprox was right when she said the latest technology is surprisingly gentle. I really do find cleaning pleasant with this brush.
However, I first need to figure out how to position the brush head to properly reach my teeth and gum line. My timing is a bit off at first, too. The brush briefly pauses to let me know I need to move on to the next quarter section of my teeth. This was a bit overwhelming the first few times. I simply wasn’t quite there yet. I appreciate the fact that the brush doesn’t just switch off once the cleaning time’s up, but continues to run. This means I can take my time cleaning my teeth.
When I’m done, I run my tongue over my teeth and am impressed. They definitely feel smoother than they do after brushing with my old toothbrush. This makes me feel good about the brush and I dare to try out the other modes.
Which level should I try?
My experiment continues, still using the softest brush head. The instructions state that the cleaning results are «very good» even at the lowest setting. So the other modes are a matter of personal preference. Apart from Start mode, that is. It’s reserved for the gum line, interdental spaces and brackets.
I’ve noticed that stronger also means louder. Having said that, what constitutes «loud» is relative, of course. What I mean by this is that the brush emits a clearly audible high-pitched sound. Personally, it doesn’t bother me. What’s more, I don’t experience any pulling sensations or other discomfort at any of the settings. Since I want to try everything, I switch to the Power attachment.
This one was definitely made for me. With the soft brush, I was never quite sure if I was actually brushing my teeth. And this is where the Power attachment comes into play. I’m also really happy with the medium setting in Smile mode.
Getting into the groove
After a little over a week, I’ve got into a routine. What amazed me most of all was the result. The oral sensation after brushing was that unbeatable feeling you get right after having had your teeth cleaned by a professional.
The brushes
The brush heads on the Hydrosonic Pro are all slightly curved – similar to professional dental tools.
- Sensitive: The softest version is ideal for beginners or people with sensitive gums.
- Power: This one’s great for anyone who prefers a more vigorous clean and doesn’t have sensitive gums.
- Single: This small, tapered head resembles an interdental brush. It’s suitable for interdental spaces, the gum line, or hard-to-reach areas, such as around braces or brackets.
Daily use and battery life
I was impressed by the battery life. Only after twelve days of brushing twice a day did the LED turn red, indicating that the brush needed to be returned to the charging station. What’s more, the handpiece is easy to clean. And the included USB cable is sufficient for charging when you’re on the go. The only pain point is the USB-A port instead of a more state-of-the-art USB-C.
In a nutshell
Five stars and squeaky-clean teeth
How the Hydrosonic Pro turned me from sceptic to fan of sonic brushing. Easy to use, attractive design and impressive cleaning performance.
Pro
- Easy use with just one button
- Effective cleaning power and a pleasant oral sensation
- Pretty and lightweight
- Complete starter kit, including power supply
Contra
- USB-A port (no USB-C)
Header image: Stephan Lamprecht
Hamburg local, bookworm, and ice hockey fan. Dad and granddad. Constantly tinkering around with my smart home setup. I love DIY, the outdoors, fashion, and cosmetics.
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