The short answer
If you blow-dry most days and your scalp complains about heat, the Dyson Supersonic Nural is worth the extra $145. If you style two or three times a week, buy the Shark FlexStyle and stop reading.
That's the whole decision. Everything below is why.
These two get compared constantly and it's a slightly unfair fight, because they aren't the same tool. The Dyson is a dryer that happens to be very good. The Shark is a dryer and a styler sharing one handle. Which matters more to you decides this, not the price.
Today the Dyson Supersonic Nural is $444 and the Shark FlexStyle is $299 on Amazon Australia. That's $145 between them, which is real money — about the price of the Shark's nearest rival on its own.
What the extra $145 actually buys
Scalp-sensing. That's it, and it's less gimmicky than it sounds. The Nural measures how close the nozzle is to your head and drops the heat as you approach the roots, which is precisely where heat damage happens and precisely where most people hold a dryer too long.
You notice it if you dry every day. Two to three weeks in, the irritation along my part had dropped off almost entirely — call it eighty per cent better, though I'm eyeballing that rather than measuring it. If you dry twice a week, you're paying $145 for a feature you'll trigger a hundred times a year instead of four hundred, and the maths stops working.
The rest of the Dyson advantage is the things Dyson is always good at: it's fast, it's balanced in the hand, and the motor noise is a higher pitch that some people find easier to live with than a cheaper dryer's drone. Amazon AU buyers have it at 4.2 / 5, which is lower than you'd expect at this price and worth taking seriously — a lot of that is people who bought it expecting an Airwrap and got a dryer.
What the Shark gives up, and what it doesn't
Four attachments on one handle, and it converts between drying and styling without you swapping to a round brush. For most people that's the more useful shape of tool, because the thing that eats your morning isn't drying, it's drying and then styling.
The honest cost: swapping heads mid-style is fiddly. You'll do it with wet hands, the attachment will not seat first time, and if you're already late it's genuinely annoying. It sits at 4.1 / 5 on Amazon AU, a hair under the Dyson, and the complaints cluster around exactly that.
It also isn't as fast as the Dyson. Close, but not the same. If your hair is very long or very thick, that gap compounds every single morning.
Side by side
| Dyson Supersonic Nural | Shark FlexStyle | |
|---|---|---|
| Price today | $444 | $299 |
| Amazon AU rating | 4.2 / 5 | 4.1 / 5 |
| Attachments | Dryer attachments only | Four, including styling |
| Scalp-sensing heat | Yes | No |
| Dries and styles | Dries | Both |
| Main annoyance | The price, given it only dries | Swapping heads mid-style |
Who should buy which
Buy the Dyson if
- You blow-dry four or more times a week.
- Your scalp gets sore, itchy or flaky and you suspect heat is part of it.
- You already own a straightener or a curler you like, so you don't need styling built in.
- Speed genuinely matters because your hair is long or thick.
Buy the Shark if
- You style two or three times a week rather than daily.
- You want one tool instead of two on the shelf.
- You've been eyeing an Airwrap and can't make the price work.
- $145 is the difference between buying now and not buying.
What I'd tell a friend
Most people asking this question are daily blow-dryers talking themselves into the cheaper one, or occasional stylers talking themselves into the expensive one. Both are the wrong way round.
The Dyson only earns its price through repetition. Used four times a week for two years, $145 is a rounding error against your scalp. Used on Saturdays, it's an expensive dryer that does one job.
And if what you actually want is dead-straight hair rather than a blow-dry, neither of these is the answer — the Dyson Corrale Straightener at $542.99 is a different tool for a different result, and you'd be better served there.
One thing to watch on price
Both of these move. Dyson discounts around the big Australian sale events and the Shark drops more often than that. The prices on this page are rebuilt from the live listings, so what you see above is current as of the date at the top — but if you're not in a hurry, waiting is a legitimate strategy on both.
The rest of what I'd actually buy in this category, with today's prices, is on the hair care page.