Quick Specs

  • Motor: Dyson Digital Motor V9 (up to 110,000 rpm)
  • Weight: About 1.5 lbs (660g)
  • Speed settings: 3 / Heat settings: 4 (including cold shot)
  • Temperature control: Glass bead thermistor measures temp 40 times per second, keeping it under 150°C
  • Nozzles: 5 magnetic attachments (Smoothing, Styling, Diffuser, Gentle Air, Wide-Tooth Comb)

Numbers on a spec sheet don't mean much. The difference hits you the first time you turn it on.

I never thought I'd become a Dyson hair dryer evangelist.

I bought the Supersonic as a birthday gift for my girlfriend. "400 bucks for a hair dryer?" I thought, internally cringing. But after borrowing it once... I've been using it more than she has for the past six months. Here's my brutally honest take.

This post contains affiliate links.

Buying a Dyson Supersonic in Korea

In Korea, the Dyson Supersonic sells for around ₩450,000–600,000 on Coupang, depending on which model and whether it's on sale. That's roughly in line with what you'd pay internationally — meaning you're not getting ripped off buying it here. The standard Supersonic usually sits around ₩480,000–520,000; the upgraded Nural version with the scalp sensor runs closer to ₩700,000–750,000. Coupang occasionally runs flash sales (especially during 11.11 or year-end events), so it's worth checking if you're not in a rush.

If you buy through Coupang Rocket Delivery, you'll have it the next day. No customs headaches, no waiting weeks, and returns are straightforward if something goes wrong.

Dyson Supersonic

Does it really cut drying time in half?

This is what sold me. I have medium-length hair (just below the ears), and my old $30 dryer took 7~8 minutes. The Dyson? 3~4 minutes. Done.

The secret isn't more heat — it's airflow. The V9 motor pulls in 13 liters of air per second and amplifies it threefold. So even on medium heat, the sheer volume of air gets the job done fast. My girlfriend has long hair past her shoulders, and her drying time dropped from 15+ minutes to about 7~8. That time savings every single morning adds up fast.

Will my hair actually look better?

I was skeptical about this. "Switching dryers won't change your hair quality" — that's what I thought. After a month, I was wrong.

Regular dryers can blast 160~180°C at your hair with no regulation. Hair protein starts breaking down around 150°C. The Dyson's thermistor constantly monitors temperature and adjusts to stay below that threshold.

What I noticed:

  • Way fewer split ends than before
  • No burnt hair smell — my old dryer would occasionally produce that singed scent
  • Hair feels softer, not stiff and fried after drying

My girlfriend got asked at her salon, "What treatment have you been using?" She'd only changed the dryer.

Five Nozzles — Do You Actually Need Them All?

Honestly? I use 2~3.

  • Smoothing nozzle: My daily go-to. Uses the Coanda effect to tame flyaways while drying. Hair naturally smooths along the nozzle surface.
  • Styling concentrator: Focuses airflow for precise styling. Great for bangs or adding volume. If you're a guy, this one alone is enough.
  • Diffuser: My girlfriend uses it for her curls occasionally. Essential if you have wavy or permed hair.
  • Gentle air: Rarely used. It's meant for sensitive scalps, but the regular mode is already gentle enough.
  • Wide-tooth comb: For very curly/coily hair. Hasn't left the box for us.

The magnetic attachment system is genuinely clever — snap one on, twist to adjust direction, swap one-handed mid-dry. It's one of those small things that makes the whole experience feel premium.

How Loud Is It?

I measured with a decibel app: about 82 dB on max speed. My old dryer hit close to 90 dB. It's noticeably quieter, though the sound profile is different — more of a high-pitched whir rather than a low roar. Some people prefer one over the other, but the person watching TV nearby will definitely complain less.

6-Month Pros and Cons

👍 The Good

  • Drying time cut by 50%+ (this alone justifies it for daily users)
  • Noticeably healthier hair from reduced heat damage
  • Magnetic nozzle swapping is brilliant
  • Quieter than most dryers
  • Easy filter cleaning (twist off the bottom cap, brush it out)

👎 The Not-So-Good

  • The price — ~$400 (₩480,000–520,000 in Korea) is a lot for a hair dryer. Period.
  • Doesn't fold — Takes up space when traveling. The case helps, but doesn't reduce bulk.
  • Service access — Dyson service centers aren't as widespread as major brands. Might need to ship it in.
  • Grip placement matters — Holding the very bottom of the handle can block the air intake. Took me a few tries to adjust.

How does it compare to other dryers?

Budget option (~$50 dryers): Perfectly fine if you just need to dry hair. But if you're spending 10+ minutes daily, the time and hair health differences compound over months.

Dyson Supersonic Nural (~$550 / ₩700,000–750,000 in Korea): The upgraded version with a scalp proximity sensor that auto-lowers temp when you get too close. Nice-to-have, but the regular Supersonic is plenty for most people.

So, Is $400 Worth It?

Yes, if you:

  • Have medium-to-long hair and dry it daily
  • Spend money on treatments to fix heat damage
  • Value your morning routine time (4 min/day × 365 = ~24 hours/year)

Probably not, if you:

  • Have a buzz cut and dry in 2 minutes flat
  • Only use a dryer once or twice a week
  • Are perfectly happy with your current dryer

Is this a good gift option?

Here's the thing — most people won't buy a ₩500,000 dryer for themselves. But as a gift? It's incredible. It's practical, premium, and something they'd never splurge on alone. The Dyson packaging alone makes it feel special to open.

Six months in, my verdict: expensive, but worth every penny if you use it daily.

Check price on Coupang

Frequently Asked Questions

Q: Are AliExpress home appliances good quality?

Many are surprisingly good for the price. Focus on products with high sales volume (1,000+) and positive reviews (90%+). The key is doing your research before buying.

Q: Do I have to pay customs duty in Korea?

Orders under $150 (about 200,000 KRW) are duty-free. Above that, you may pay 8-13% customs duty depending on the product category.

Q: What if the product arrives damaged or defective?

AliExpress has a Buyer Protection policy. You can open a dispute within 15 days of delivery for a refund or replacement. Always save photos and videos as evidence.

What are similar alternatives worth considering?

This post contains affiliate links.