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A good hair dryer should dry your hair fast and leave it looking healthy. Most dryers manage the first one. Few manage the second. This Dyson Supersonic review looks at whether a dryer that costs several times a standard model earns that premium with real results.
We tested the Supersonic HD-07 in Nickel and Copper on straight, wavy, curly and thick hair, timed drying sessions and tried all five attachments.
Quick Verdict
Our score: 4.4 / 5
The Dyson Supersonic dries hair noticeably faster than a standard dryer while running cooler. It feels light in the hand, the magnetic attachments swap in a second and the finish is smooth with less frizz. The price is steep and it will not replace a dedicated styling tool. If you dry your hair most days and care about long-term hair health, it is one of the best dryers you can buy.
What Is the Dyson Supersonic?
The Supersonic is Dyson's flagship hair dryer. The head is a short hollow cylinder and the motor sits in the handle instead of the head. That design shifts the weight down and makes the dryer easier to hold for a full session.
The HD-07 bundle reviewed here comes in Nickel and Copper with five attachments for all hair types, plus a heat-resistant mat and a storage hanger. Dyson built its name on airflow engineering, from vacuums like the Dyson V15 Detect to hair care, and the Supersonic carries the same obsession with moving air.
Dyson Supersonic Review: What Makes It Different
Four engineering choices set the Supersonic apart from a standard dryer.
The V9 digital motor
The V9 motor is small, light and fast. It spins up to 110,000 times per minute and sits in the handle, so the dryer feels balanced instead of top-heavy. It is also quieter than most full-size dryers.
Air Multiplier technology
The motor draws air through the handle and the Air Multiplier design multiplies that airflow into a strong, controlled stream from a small head. Hair moves and separates without the blast of a salon dryer.
Intelligent heat control
A sensor measures the air temperature 40 times every second and adjusts the heating element to hold the selected temperature. Standard dryers drift hotter as they run. The Supersonic does not, and that steady temperature is why hair comes out smoother and shinier after repeated use.
Controls and magnetic attachments
You get three speed settings, four heat settings and a cold shot button that locks in a style. The five attachments click on with magnets and rotate while attached, so you can angle the airflow without stopping. The set includes a styling concentrator, a diffuser for curls, a gentle air attachment for fine hair, a smoothing nozzle and a wide-tooth comb for coils and textured hair.
Fast Drying in Real Life
On medium-length straight hair our test sessions dropped from around 12 minutes with a standard dryer to roughly 7 minutes. Thick hair showed a bigger gap and long curly hair dried with the diffuser finished in about two thirds of the usual time.
The airflow does the work rather than raw heat, so you can dry on a medium heat setting and still finish fast. The dryer is light enough that your arm does not tire halfway through.
The Heat Damage Angle
Heat damage is slow and cumulative. Hair that looks fine today can turn dry and frizzy after months of high-heat drying. The Supersonic dries faster, so hair spends less time under heat, and its heat control keeps the temperature steady instead of letting it spike.
Over several weeks of testing, hair dried with the Supersonic looked smoother and felt softer than hair dried with a standard dryer at the same settings. The difference was clearest on color-treated and fine hair. No dryer can undo damage that is already there, but one that runs cooler and finishes faster gives healthy hair a better chance of staying that way.
Pros and Cons
Pros
- Dries hair much faster than a standard dryer, especially thick and long hair
- Intelligent heat control holds a steady temperature and helps protect hair
- Light and well balanced, so long sessions feel easy on the arm
- Five magnetic attachments cover straight, wavy, curly and coily hair
- Quieter than most full-size dryers
Cons
- Premium price, several times the cost of a standard dryer
- Attachments and accessories add up if you want extras like a stand or case
- Will not curl or style hair on its own like a multi-styler
- The short cord can feel tight if your outlet sits far from your mirror
Who Should Buy It and Who Should Skip It
Buy the Supersonic if you dry your hair four or more times a week, if your hair is thick, long or frizz-prone, or if heat damage concerns you. It also suits households that want one dryer, since the attachment set covers most hair types.
Skip it if you rarely blow-dry, if you are happy with air drying, or if your budget is tight. If you want styling as well as drying, compare it with the Dyson Airwrap review first. The Airwrap curls and shapes hair while it dries while the Supersonic is the better pure dryer.
Dyson Supersonic Review: Frequently Asked Questions
Is the Dyson Supersonic good for curly hair?
Yes. The diffuser spreads airflow gently and helps curls dry with shape instead of frizz. The wide-tooth comb works well for coily and textured hair. Start on low speed and medium heat.
Does the Supersonic really prevent heat damage?
No dryer can guarantee zero damage. The Supersonic reduces risk in two real ways. Its sensor holds the air temperature steady and its strong airflow finishes drying faster, so hair spends less time under heat.
How loud is the Dyson Supersonic?
It is quieter than most full-size dryers. On medium speed you can talk comfortably while drying.
Can it replace a flat iron or a curling iron?
For smoothing, mostly yes. The smoothing nozzle and concentrator give a sleek finish on many hair types. For defined curls or pin-straight results on very coarse hair, you may still want a dedicated styling tool.
Is the Supersonic worth the premium price?
Daily users who care about hair health get the most value. Occasional users may not feel the difference is worth the cost.
Dyson Supersonic Review: The Verdict
The Dyson Supersonic is the best pure hair dryer we have tested. It dries fast, runs cooler than standard dryers and leaves hair looking smooth and healthy. The magnetic attachments are genuinely useful and the build quality feels made to last.
The price is the only real obstacle. Like the KitchenAid Artisan mixer in the kitchen, it is a buy-it-once premium tool that rewards people who use it often. If you dry your hair most days and want faster sessions with less heat, the Supersonic is worth it.
More from Usa Buy Ease: Dyson Airwrap Review | Dyson V15 Detect Review | KitchenAid Artisan Mixer Review
