Hair Straightener Test Comparison – the 5 Best Hair Straighteners

A high-quality hair straightener is essential for many when it comes to straight, shiny hair or defined waves. The selection is huge – from inexpensive drugstore models to professional devices with innovative technology. In our large test and comparison, we present the five best hair straighteners of 2025. The evaluation criteria were straightening performance, hair protection, handling and value for money.
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21. September 2025
21. September 2025
#1
1. Test winner: GHD Platinum+ Styler

1. Test winner: GHD Platinum+ Styler

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Pros

  • Intelligent heat technology for even 185 °C
  • Ultra-Zone™ technology for hair-friendly straightening
  • Shiny finish in just one stroke
  • Also ideal for curls waves
  • Automatic shut-off after 30 minutes
  • Stylish design, high-quality workmanship
  • Color protection – For all hair types

Cons

  • Higher price than standard models
  • No temperature control – fixed at 185 °C

TEST WINNER

4.7 / 5

VERY GOOD

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How hot does the GHD Platinum+ Styler get?

The device operates constantly at 185 °C – the optimal temperature for gentle, effective styling according to expert opinion.

Is the hair straightener suitable for thick or unruly hair?

Yes, the intelligent technology recognizes the hair structure and adjusts the power accordingly. Even thick hair is reliably straightened.

Can you make curls with the GHD Platinum+?

Yes, the rounded housing is ideal for shaping waves or curls – without any pulling.

How long does it take to heat up?

The device is ready for use within 20 seconds – ideal for the morning routine.

Is the GHD Platinum+ also suitable for colored hair?

Yes, the hair straightener is ideal for colored hair. The constant temperature of 185 °C protects the hair structure and prevents the color from fading – perfect for colored, tinted or bleached hair.

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GHD Platinum+ Styler

The premium hair straightener for shiny hair with maximum protection.

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#2
Dyson Corrale™ Hair Straightener

Dyson Corrale™ Hair Straightener

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Pros

  • Flexible heating plates – less hair breakage
  • Cordless with up to 30 minutes of battery life
  • Three temperature settings (165 °C, 185 °C, 210 °C)
  • OLED display with temperature control
  • Good yield – a small amount is enough
  • Ideal for travel thanks to universal voltage
  • Also ideal for curls waves

Cons

  • Very high price
  • Slightly heavier than corded models

4.6 / 5

GOOD

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#3
Remington S9500 Pearl Hair Straightener

Remington S9500 Pearl Hair Straightener

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Pros

  • Ceramic coating with real pearls for extra shine
  • Individually adjustable temperature (150–235 °C)
  • Fast heating in just 10 seconds
  • Inexpensive and powerful
  • Transport bag with heat protection included

Cons

  • No automatic voltage adjustment
  • Slightly heavier than corded models
  • Plates not sprung – requires some practice

4.4 / 5

GOOD

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#4
Braun Satin Hair 7 SensoCare ST780

Braun Satin Hair 7 SensoCare ST780

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Pros

  • Sensor technology for individual temperature adjustment
  • Straightens even fine hair particularly gently
  • Digital display with personal hair profile
  • Rounded edges for curls waves
  • Automatic shut-off

Cons

  • Menu navigation a bit complicated
  • Higher price
  • Housing could be more robust

4.2 / 5

GOOD

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#5
BaByliss ST395E Steam Hair Straightener

BaByliss ST395E Steam Hair Straightener

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Pros

  • Steam function for intensive moisture supply
  • Ideal for thick or curly hair
  • 5 temperature settings up to 230 °C
  • Ion technology for anti-frizz effect
  • Integrated comb for even results

Cons

  • Heavier and larger than standard devices
  • Higher price
  • Steam function requires refilling water

4.1 / 5

GOOD

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Important Criteria when Buying a Hair Straightener

When buying a hair straightener, you should not only pay attention to the price, but above all to these properties:

  • Temperature control: An adjustable temperature range is particularly important for fine or damaged hair.
  • Coating: Ceramic, tourmaline or titanium ensure even heat distribution and protect against heat damage.
  • Plate shape: Rounded plates also allow you to style curls or waves.
  • Heating time: Good devices reach their temperature in 10–30 seconds.
  • Safety: Automatic shut-off and heat protection case should not be missing.

Why GHD Platinum+ is the Test Winner

The GHD Platinum+ Styler is the favorite in our hair straightener comparison because it ideally combines performance, hair protection and comfort. The patented Ultra-Zone™ technology analyzes the hair 250 times per second and keeps the temperature constant at 185 °C – the ideal styling temperature.

The device delivers shiny, long-lasting results in just one stroke without straining the hair. It is also versatile – whether you want a sleek look or beach waves. Anyone who values high-quality workmanship, modern design and reliable results will be more than satisfied with this hair straightener.

Buying Advice: how to Find the Right Hair Straightener

For beginners or occasional styling, a model like the Remington S9500 is sufficient. If you straighten your hair regularly and want the highest quality, the GHD Platinum+ or the Dyson Corrale are the best choices. For very thick or curly hair, a steam hair straightener like the one from BaByliss is worth it.

Important questions before buying:

  • Do I need the device daily or only occasionally?
  • Do I have fine, normal or thick hair?
  • Would I also like to style curls or waves?

The devices are available online at Amazon, Douglas, MediaMarkt or in specialist shops. Many manufacturers also offer spare parts and accessories separately.

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GHD Platinum+ Styler

The premium hair straightener for shiny hair with maximum protection.

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