A blow-dry brush can replace the awkward hair-dryer-and-round-brush routine, but the useful budget choice is not simply the one with the biggest barrel or hottest setting. Start with your hair length, the finish you want and how comfortably you can control the tool. This guide covers models that commonly sit below AU$150, with availability and retailer prices checked before you buy.
Our current starting point: Mermade Blow Dry Brush
Mermade Hair lists its standard Blow Dry Brush at AU$109. The Australian model has a 60mm oval barrel, three heat settings, a 1200W motor, an Australian plug and a two-year warranty. At 400g, it is also lighter than many multi-attachment styling systems.
It is the clearest current fit for medium-to-long hair when the goal is a simple smooth blowout with volume. The large barrel is less precise around very short layers or a fringe, and it does not provide interchangeable curling or concentrator attachments.
Choose the barrel for your hair length
Large oval barrels are designed to smooth a wider section and create lift or a curved finish. They suit medium and long hair, but can feel oversized when you need to reach close to the root on short hair.
For short styles, fringes or tighter shaping, look for a smaller round attachment. If you want to rough-dry roots before styling, an interchangeable system with a dryer nozzle may be easier than using the brush barrel from the first damp stage.
Heat control matters more than maximum heat
Look for at least two heated settings and a lower-temperature option you can use around finer sections. Mermade publishes settings of 60°C, 95°C and 115°C for its standard brush, which makes the differences easier to understand than labels alone.
Use the lowest setting that achieves the result, work in manageable sections and keep the tool moving. A blow-dry brush still applies heat and tension, so it should not be marketed as damage-free.
Check weight, grip and cord before buying
A tool can feel heavier after several minutes with your arm raised. Compare published weight where available, handle width and whether the cord swivels. These details matter more in daily use than a long list of styling claims.
Australian buyers should confirm an AU plug and the correct local voltage on the exact listing. Do not rely on an adaptor for a tool whose voltage is incompatible, and do not use heated appliances near baths, showers or basins.
One fixed barrel or interchangeable heads?
A fixed-barrel brush keeps the routine simple and usually costs less. An interchangeable model earns the extra money when you will genuinely use a pre-drying nozzle or smaller barrel—not just because the box contains more parts.
Mermade's interchangeable model sits above this guide's AU$150 ceiling at its current listed price, so the standard brush is the more relevant starting point for this budget. Prices and stock can change; check the retailer before paying.
What to compare under $150
Use four filters: the barrel size for your hair length, a usable lower heat setting, a weight you can control and clear Australian electrical and warranty information. Then compare the exact retailer bundle and returns policy.
Avoid choosing from star ratings alone. Reviews can help reveal recurring handling or heat concerns, but they do not tell you whether the barrel size and routine match your own hair.
A practical decision
Start with the Mermade Blow Dry Brush if you want one lightweight oval brush for smoothing and volume on medium-to-long hair. Search more broadly if you have short hair, want tighter curls or need a separate pre-drying attachment.
BuyCheck has not hands-on tested this tool. The shortlist is based on current manufacturer specifications, Australian suitability and the fit of the product to the stated use case.
Questions buyers ask
Can a blow-dry brush be used on soaking-wet hair?
Follow the exact product instructions. For the Mermade brush, the maker says to begin with towel-dried hair and work in sections rather than starting with dripping-wet hair.
Is a larger barrel always better?
No. A large oval barrel can smooth and add volume efficiently on medium-to-long hair, while a smaller barrel gives more control around short layers and fringes.
Do I need the hottest setting?
Not necessarily. Start with the lowest useful setting for your hair and keep the brush moving. Higher heat is not automatically a better or faster choice.
BuyCheck uses current manufacturer information and fit-based editorial judgement. We do not display guessed prices or claim hands-on testing we did not perform. Retailer links may earn BuyCheck a commission from qualifying purchases, without increasing the price you pay.