Skip to main content
  1. Home
  2. Smart Home
  3. Reviews

Hands on: Dyson Supersonic hair dryer

Dyson’s quiet Supersonic hair dryer blows hot air and costs $400

Add as a preferred source on Google
Hands on: Dyson Supersonic
Julian Chokkattu/Digital Trends

“Why you can trust Digital Trends – We have a 20-year history of testing, reviewing, and rating products, services and apps to help you make a sound buying decision. Find out more about how we test and score products.“

The Supersonic produced a nice shine, but it didn’t feel any different from using a normal hairdryer. Still, it’s nice knowing your hair isn’t getting damaged.

Recommended Videos

Dyson’s new hair dryer is no joke. It’s pretty, doesn’t look like a regular hair dryer, is quieter than most, and it’s purportedly better for your hair. The stickler? It’s $400.

The company announced the Supersonic back in April, but the hair dryer is only making it to market now. It’s launching exclusively at Sephora stores on Friday, but it will make its way to other retailers later this month. It’s available for purchase right now on Dyson’s website.

Dyson is known for its vacuums, but the company seems to have an affinity for products that can suck or blow out air. It’s spent four years, more than 100 engineers, and nearly $67 million to develop the Supersonic.

Dyson spent $56,000 buying real hair — about 1010 miles of natural hair and “created a worldwide shortage in the process.” The point was to vigorously test the different ways heat impacts hair, and the different ways people dried their hair.

The end result? The company went out of its way to “rethink” the hair dryer.

So how does it work?

So what makes the Supersonic unique, and apparently worth a $400 price tag? There’s an “intelligent heat control” system that helps protect your hair from heat damage. That’s thanks to the glass-bead thermistor and the microprocessor.

Hair damaged from excessive heat loses its shine, and that’s what the Supersonic is trying to prevent.

The thermistor checks the heat leaving the Supersonic 20 times per second. If it’s getting hot enough to damage your hair, it relays that information to the microprocessor. This processor adjusts the “double-stack heating element” to protect your hair, so you don’t have to worry about scorching your locks.

There’s also a digital motor in the handle, which Dyson calls the V9. It spins up to 110,000 times a minute and has one inaudible frequency. The addition of extra blades in the motor and acoustic silencers help reduce the sound the Supersonic emits.

Does it work?

You’ll be pleased to know that the Dyson Supersonic does dry your hair. Jokes aside, it’s a well-built, ergonomic hair dryer that powerfully blows out hot air with quite a bit of range.

There are four buttons all together. The two on the circular part of the hair dryer adjust the airflow and the heat. Push up the button on the handle below to turn the Supersonic on, and if you press and hold the last button, you’ll get a blast of cooler air.

Hair damaged from excessive heat loses its shine, and that’s what the Supersonic is trying to prevent.

It certainly is a lot quieter than hair dryers we’re used to, but it’s far from silent. There’s still a decent amount of noise coming out of the Supersonic, but what Dyson has done to minimize it is impressive.

Dyson also includes three magnetic attachments for the Supersonic: a smoothing nozzle, for drying; a styling concentrator for “fast, precise airflow for controlled styling”; and a diffuser, to disperse airflow and reduce frizz for people with curly hair. These magnetic attachments are pretty neat, as it’s incredibly easy to take them on and off quickly.

The Supersonic produced a nice shine, but it didn’t feel any different from using a normal hairdryer. Still, it’s nice knowing your hair isn’t getting damaged.

Warranty information

The Supersonic comes with a limited two-year warranty for parts and labor from the date of purchase. Dyson offers a 30-day money back guarantee if you don’t like the hair dryer.

Hands on: Dyson Supersonic
Julian Chokkattu/Digital Trends
Julian Chokkattu/Digital Trends

The warranty covers original defects from the manufacturing process, and it’s only valid if you use the machine in the country you bought it from.

It does not cover damage from electrical outages, power surges, the weather, lack of maintenance, and normal wear and tear.

Conclusion

Dyson’s launch in New York had all the hoopla of an Apple event. Even the packaging and look of the device really goes to show the lengths the company is going to try and make owning the Supersonic “cool.”

It certainly is a novelty, and if you’re ever seen in public using it you’ll get some questions. But how often are you using a hair dryer in public? Even if you wanted to take it out of the house, it’s tricky thanks to the lack of a carrying case.

Regardless, the Supersonic is a sleek-looking hair dryer, one that Dyson says is safe for your hair. If that’s important for you, perhaps it’s worth it. But at $400, it’s clear this hair dryer isn’t meant for the average consumer.

Highs

  • Well-built
  • Responsive buttons and useful LED notifiers
  • Protects hair from heat damage
  • Comes with three magnetic attachments for different hair styles

Lows

  • Expensive
  • A carrying case should come included
Julian Chokkattu
Former Mobile and Wearables Editor
Julian is the mobile and wearables editor at Digital Trends, covering smartphones, fitness trackers, smartwatches, and more…
Anker Solix S2000 can keep your fridge running for long blackout hours and it’s now up for grabs
Anker SOLIX S2000 launches at $680 with 35 hours of fridge backup and OptiSave Technology
anker-solix-s2000

Power outages have a way of reminding you just how dependent your home is on electricity.

Anker is trying to change that with the Solix S2000, a new portable power station now available on its website and Amazon at a launch price of $680, down from a regular price of $1,200. The headline claim is impressive: up to 35 hours of continuous refrigerator backup from a single charge.

Read more
Google’s first new smart speaker in six years might finally have a release date
Google's self-imposed Spring 2026 deadline has come and gone without a word.
Electronics, Speaker

Google has been unusually quiet about its Gemini-powered Home Speaker ever since announcing it in October 2025. I was expecting the device to make an appearance at the I/O 2026, but that didn’t happen either. 

Now, a product page on Best Buy Canada just casually posted (read leaked) a release date, suggesting the wait is almost over.

Read more
My Lawn Used to be a Never-Ending Weekend Job Until the LEBOSBO V3 Took Over
The revolutionized yard care solution that acts less like a machine and more like a helping hand
Grass, Lawn, Plant

I used to think tedious lawn maintenance was simply one of those unwritten rules of homeownership, a chore you quietly accept and force yourself to deal with every weekend. I would promise myself I’d quickly get it done, only for it to spiral into hours of work. Instead of enjoying slow summer weekends outdoors, I often found myself dragging a mower through the heat, edging borders, bagging endless clippings, and dealing with equipment that somehow always demanded more effort than expected. Even after sacrificing an entire Saturday morning, the yard rarely stayed looking sharp for more than a few days.

That frustration eventually pushed me toward smarter lawn care solutions. The problem was that most robotic lawn mowers I came across did not feel all that smart. Between burying messy perimeter wires, dealing with bulky installations, and watching machines bounce around the yard like confused pinballs, the entire setup often looked more exhausting than the mowing itself. I direly sought some respite, and that's exactly why LEBOSBO stood out to me.

Read more