Updated 1 Aug 2014


IV Styler 4.2B

Snapshot: The GHD IV Styler 4.2B has 1 temperature setting, a ready-to-use indicator and auto switch-off. How well does it straighten your hair?

IV Styler 4.2B
Price guide


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Test results

Overall rating

Good points

  • Very fast heat-up time.
  • Quick and effective styling result.
  • Moves smoothly through hair.
  • Optimum temperature for styling.
  • Easy to manoeuvre.
  • Long cord.


  • Has only 1 heat setting.

About our trial

10 volunteers – all experienced in using hair straighteners – trialed 12 straighteners on clean, dry, tangle-free hair.

They knew which brands they were using: we couldn’t disguise the brands because our triallists had to read the instruction manuals and safety warnings.

The triallists used the straighteners in the morning so they could see how the effect lasted through the day. All were asked to follow the manufacturer’s instructions.

After using each straightener, triallists evaluated performance, immediate effect, how smoothly the straightener went through their hair, the number of passes needed to straighten a section of hair, the time taken to get the desired effect, and whether the plates were hot enough. They also rated each straightener on ease of use.

At the end of each day, they gave the straightener an overall rating. They also noted how long the result had lasted.


Key data


Price guide


Weight (g)
Cord length (m)
Plate material
Minimum / maximum temperatures (°C)
not stated
Average maximum temperature (°C)
Heat-up time (min:sec)


Swivel cord
Ready-to-use indicator
Audible and visual
Heat settings
Curls, waves, flicks
Floating/cushioned plates
Auto switch-off (mins)

More Info


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