Are you thinking of buying hair scissors, but you don’t know what you should pay attention to? Do you want to achieve an airy beach look or maybe a tighter curl? Whatever your need, let’s take a look together at their main features!

1. Power 

In hair curling irons, power is expressed in Watts and indicates how quickly the curling iron can heat up, as well as how long it can maintain the temperature at the same level. The more watts it has, the faster the hair curling iron heats up, so you don’t have to wait "for ages," and the longer it can maintain the maximum temperature you have set. Indicatively:

• Hair curling irons with low power (20-40 Watts) are usually smaller in size and are ideal for finer hair and more delicate curls, which do not require much heat.
• Hair curling irons with medium power (40-60 Watts) are the ones we encounter most often. They provide sufficient heat for most hair types, from fine to thicker hair and from looser to tighter curls.
• Hair curling irons with high power (60+ Watts) are intended for more professional use or for thicker hair with greater demands. Professional hair curling irons heat up much faster and can reach higher temperatures than regular curling irons.

SkroutzTip: For super-fast heating and minimal waiting time, choose a fast-heating curling iron.

2. Temperature setting

Most hair straighteners and curling irons offer the ability to adjust the temperature, so you can adapt it based on your needs, such as the thickness of your hair, the style you want to achieve, and the type of curl you prefer. 

A classic temperature range is from 120°C to 230°C. Thicker hair requires higher temperatures to achieve the desired result, while fine hair needs lower temperatures to stay healthy. More specifically:

• Low temperatures (120°C-150°C) are ideal for fine, sparse, or damaged hair (from dyes, the sun, etc.).
• Medium temperatures (150°C-190°C) are suitable for normal hair with medium density.
• High temperatures (190°C-230°C) are suitable for full and thick hair, with high resilience.

SkroutzTip: Before using any heat styling device, apply heat protection products to your hair to protect it from excessive heat!

3. Construction material

The construction material of a hair straightener refers to the heated part of the device, that is, the plate or the rod. There are 4 basic materials used in the manufacture of these devices.

• Ceramic: The ceramic coating helps with faster heating and protects the hair so it does not burn. It provides even heat distribution, is a gentle material for the hair, and is your ally against frizz. It is ideal for fine to normal hair.
• Tourmaline: The tourmaline coating leaves the hair bright, soft, and silky. It is a material enriched with minerals that produce negative ions, helping to reduce both frizz and static electricity. Tourmaline is mainly found in hair straighteners with ionic technology.
• Titanium: The titanium coating is also a good choice for fast heating and greater durability. Titanium is a lightweight metal, known for its ability to heat up in a short time and maintain high temperatures. It is ideal for thick hair.
• Chrome: The chrome coating is an older technology, with lower heat distribution levels and not as gentle on the hair. Nowadays, chrome is rarely found as a material in hair straighteners.

4. Diameter & Styling 

Do you want airy wavy hair or beautiful stylish curls? 

The diameter of the curling iron plays a very important role in the final result and in how the curl is formed. The larger the diameter, the airier the result will be.

• To achieve an airy look, you will need a hair curling iron with a diameter of 2+ centimeters. The classic curling iron for wavy hair, with its distinctive design, usually has a larger diameter.
• While for more polished curls, you will need a curling iron with a diameter of about 1-2 centimeters. A curling iron for curls can give you this result.

5. Type of Curl

Depending on the curl result you want to achieve, you need to choose a curling iron based on its thickness and diameter. Tighter curls require curling irons with a smaller diameter, while for a more relaxed result, it is better to choose a curling iron with a larger diameter.

Specifically, you can find the following types:

• Curling irons for vang effect - give the hair a very classy styling for special appearances. You can do this hairstyle for weddings, events, or any other special moment for you.
• Curling irons for wavy effect - these are larger curling irons that give the hair a relaxed style and that special look you have after the sea. Ideal hairstyle for every day.
• Curling irons for loose curls - give the hair a shape without making it particularly styled. You can do this hairstyle at work. It is easy and quick.
• Curling irons for tight/very tight curls - you can use such a curling iron if you want your curls to last and not fall out during the day. Ideal hairstyle for your outing.

 6. Extra features 

And if you want to achieve the best possible results, you can see below some extra functions that will make the process easier, safer, and faster.

• There are hair curling irons with automatic shut-off for safe use, where the device will turn off automatically if you do not use it after a certain period of time. So it will never stay on for too long, even if you forget it!

• Curling irons with a swivel cord make the process even easier. The cord rotates in a circular motion, making use even easier, without causing any damage to the cord itself.

• The digital display on a curling iron shows the temperature of the iron. In some cases, you can even see when the curling iron is ready to use or adjust the temperature.

• Choose a curling iron with additional attachments so you can create more looks with just one device. You can also find curling irons whose packaging includes a glove for safe use, hair protection oil, or even cleaning accessories!

• Finally, if a curling iron has a conical attachment, you can use it to create a lighter effect at the roots and a tighter curl at the ends.

✨ Trends 2026

• Smart styling (AI & Sensors): Now your curling iron is smarter than ever. Top brands have integrated sensors that "read" your hair and automatically adjust the temperature. So, you don’t have to guess if 200°C is too much – the iron knows! 
• Infrared light tech: The big revolution for 2026! You’ll see devices that use infrared light to heat the hair from the inside out. The result? Styling that lasts longer, works faster, and leaves your hair super shiny. 
• The return of the volume (90s vibes): Tight curls are giving way to volume. Large barrel curling irons are a must-have this year, so you can achieve that "Supermodel Blowout" you see everywhere on TikTok. 
• Mermaid & textured waves: If you like a more relaxed, "beachy" look, triple barrel wavers remain the number one choice. It’s the easiest way to look polished without seeming like you tried too hard. 
• Cordless freedom: In 2026, we don’t want cords holding us back. Cordless curling irons are everywhere, with batteries that last for your entire styling session, so you can refresh your look at the office, in the car, or while traveling. 

Don’t forget! There can often be differences between products, depending on their overall features and construction. Before you decide, read other users’ reviews to see their opinions too!