Sonic FX Toothbrush Review: What You Need to Know

Sonic FX Toothbrush Review: What You Need to Know

Dental hygiene has come a long way since early man picked up a stick, chewed the end, and used the frayed edges to clean his teeth. The toothbrush has been a loyal instrument in the battle against tooth decay and bad breath and did the best it could to whiten teeth. Now, sonic toothbrushes provide game changing interventions in dental hygiene. We randomly selected a few sonic toothbrushes and compared them in this Sonic FX toothbrush review.

What Are Sonic Toothbrushes?

Sonic toothbrushes come with rechargeable batteries and provide a medium to high-range power source that vibrates brush heads affixed to ergonomically shaped handles.

Sonic toothbrushes can vibrate between 24,000 and 40,000 times per minute. These high-speed vibrations are considered superior to electric toothbrushes that use less power to rotate and oscillate the brush head. Since electric toothbrushes can only provide between 2,500 and 8,000 strokes per minute, sonic technology provides the superior cleaning.

What Do We Want Sonic Toothbrushes to Do?

We know it sounds like a no-brainer, but we expect sonic toothbrushes to do a better job at their intended purpose than the manual toothbrush; and certainly better than our ancestors’ stick with one end frayed.

Mechanical Scrubbing

The main action of any toothbrush is to scour the scum, food, and plaque off of our teeth and tongue. But we discovered a long time ago that the mouth can never be sterilized, which means that there are bacteria that are doing their dirty work even while we are brushing our teeth.

These bacteria give us bad breath and erode our teeth along with all of the acids and alcohols we pour in; but they are also responsible for a top reason why we lose our teeth: gingivitis and gum disease.

Our Sonic FX toothbrush review found that extensive studies were done during the beginning days of sonic toothbrushes to compare toothbrushes using gingival inflammation as a measuring stick.

Colonial Invaders

The bacteria that hang out in our mouths colonize dental plaque. Over time, these familiar bacteria evolve into strains that serve to infect and erode teeth and gums. Inflammation builds up over time, and time is a factor: the longer plaques remain in the mouth, the more inflammation and the more damage it does.

The advantage that the sonic toothbrush has over an electric and manual toothbrush is its ability to disrupt those colonies with rapid vibration.

Sonic Toothbrush Technology

Our Sonic FX toothbrush review revealed that sonic toothbrush technology works in two ways. First, it works through the obvious, physical scrubbing of teeth and gums. The second method of cleaning is an indirect method.

Fluid that is in the user’s mouth—water and saliva—is intensely vibrated along with the bristles to shake or agitate food particles and plaque that are in places the brush does not physically touch.

When Did Sonic Toothbrushes Arrive?

We remember when the electric toothbrush replaced the manual toothbrush, but it seems like one day we went to our medicine cabinet and our electric toothbrush had morphed into a sonic toothbrush.

The sonic toothbrush arrived in 1992 after years of research and creating prototypes. Perhaps we didn’t notice when our toothbrushes changed because essentially the only difference between an electric toothbrush and a sonic toothbrush is stroke speed and vibration versus motion and oscillation.

What Is the Sonic FX Toothbrush?

The Sonic FX toothbrush is a high-powered, rechargeable toothbrush that effectively cleans your teeth by using up to an average of 31,000 strokes per minute to directly brush teeth and gums and to indirectly agitate and remove food and plaque and hard-to-reach places.

Product Specs

Our Sonic FX toothbrush review found that this product comes with a 3/8 inch by 3/4 inch interdental head that cleans hard-to-reach spots. This high-powered toothbrush is capable of 33,000 strokes a minute. It comes with a two-minute timer to shut off once the optimal brushing time is reached.

How It Compares

For our Sonic FX toothbrush review, we picked a few similar products available on the market to see how they compare.

Sonic FX Toothbrush

Sonic FX toothbrushes have the advanced technology that provides an easy, ergonomically correct method to brush away plaque and give a deep clean. Replacing the brush head is simple with a twist and lock mechanism.

Battery life

This product comes with a rechargeable lithium ion battery that can last three weeks on a full charge when used to two times a day.

Design Quality

The Sonic FX toothbrush comes with a three second alert to remind you to move it to another quadrant of the mouth. A long-lasting battery makes this ideal for travel. It comes with 3 speeds, including a massage speed for the gums. A proprietary brush head design is provided with long outer bristles to reach between the teeth to brush away hidden food and plaque.


The Sonic-FX warranty period is for 90 days and begins on the date of purchase.


  • Results impress dentists
  • Quick acclimatizing to high intensity vibrations
  • Brush heads are inter-compatible with other models


  • Pressure sensor is limited
  • Breaks easily
  • Relatively old technology

Where to Buy

Philips Sonicare ProtectiveClean 6100

This product claims whiter teeth in just one week versus the manual toothbrush. The pressure sensor protects teeth and gums from excessive brushing pressure. The Philips comes with three intensity settings for maximum comfort, and there is a head replacement reminder on every device.

This product also provides an ergonomically correct shape and design to sweep away food particles and plaque and give you an effective and gentle cleaning experience. This device is suitable for users with braces, fillings, crowns, and veneers.

Battery life

The 110 – 220 volt rechargeable battery provides two weeks of use. A battery charge light indicator informs the user when it’s time to recharge.

Design Quality

This sonic toothbrush comes with three modes and three intensities. The clean mode is for optimum cleaning. The white mode is designed to remove surface stains. The gum care mode provides a massaging action with a reduced power of brushing. It comes with a premium travel case.


This product comes with a 24-month warranty that begins at the date of purchase.


• Results impress dentists
• Quieter than other brands
• Slim handle


• Pressure sensor frequently defective
• Breaks easily
• Doesn’t provide acceptable vibration

Where to Buy

Waterpik Sensonic Professional SR3000

This product features state-of-the-art sonic technology with a filament speed that is 25% faster than other models. This comes with a two-minute timer and a three-second quadrant pacer to prevent over-brushing.

This toothbrush comes with an ergonomically designed handle that facilitates manual dexterity. Three brush heads and two speed settings have options for everyone. It features a hygienic brush head cover and a premium travel case.

Battery Life

This device comes with a lithium ion battery. It also comes with a recharge indicator gauge. A full charge will last for approximately one week of twice daily brushing at 2 minutes per episode.

Design Quality

The advanced brush head design is extra soft with rounded bristles that provide gentle cleaning yet removes plaque from hard-to-reach areas. This device comes with three brush heads; standard, compact and interdental. There are two speeds for gentle cleaning or maximum plaque removal.


This product comes with a two-year warranty.


• Results impress dentists
• Sonicare reputation is accurate
• Provides economic timing device


• Inconsistent battery life
• No travel pouch
• Requires currency conversion

Where To Buy

Our Sonic FX Toothbrush Review Conclusion

Our Sonic FX toothbrush review resulted in the decision to award first-place status to the Sonic FX toothbrush. All of these toothbrushes do essentially the same thing. They provide various brush heads that are affixed to an ergonomically designed handle. The handle sits in the charging station and provides varying lengths of standard service prior to requiring a recharge. Sonic FX can deliver up to three weeks of life on one charge with regular use.

We like being notified when we need to move to a different quadrant or when we’ve had our two-minute optimal brush time; we are often not awake in the morning and are tired in the evening, so our minds are not often on our mouths! Sonic FX only provides a 90-day warranty, but it is also the least expensive sonic toothbrush in our Sonic FX toothbrush review. We can live with that.

We all like high-tech and new techie-like things, but the Sanyei ION-Sei is not so innovative that it justifies a four-star price rating and no information regarding the warranty until you buy. In addition to the price, the Sanyi can only be purchased from Amazon’s United Kingdom site. While in the global economy it’s no problem to purchase items from other countries, we believed we could find something just as good, if not better, at home without having to pay a currency conversion fee or pay attention to shipping.

As for the Waterpik Sensonic, it is true that Waterpik is a high-quality product with a well-deserved reputation. Our Sonic FX toothbrush review discovered however, that at present it can only be purchased from Amazon’s Canadian website. We like it that it’s closer to home; but there is still the fact that it has a five-star price rating; making it the most expensive in our Sonic FX toothbrush review.

There will also be a currency conversion fee and probable special arrangements need to be made for shipping and delivery. As well, we read that the warranty will be rendered void if the toothbrush is shipped outside of Canada.

Our Sonic FX toothbrush review determined that all sonic toothbrushes were easy to use. We didn’t find an acceptable rationale to spend more money on devices that do essentially the same thing, so the winner was Sonic FX. The real reward is that our winner is cheap enough so that we can afford a water flosser!